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['Ahmadi, Zabihollah', 'Lee, Seungjong', 'Shamsaei, Nima', 'Mahjouri-Samani, Masoud'] | 2021-11-18T00:55:47Z | 2021-11-18T00:55:47Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90380', 'http://dx.doi.org/10.26153/tsw/17301'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['laser surface processing', 'surface defects', 'surface roughness', 'pores', 'fatigue behavior', 'titanium', 'additive manufacturing'] | Laser-Assisted Surface Defects and Pore Reduction of Additive Manufactured Titanium Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f1ae62e2-edac-4e62-9d2d-38ddd553381c/download | University of Texas at Austin | Laser surface treatment of additively manufactured parts has attracted considerable interest in the
past few years due to its flexibility, operation speed, and capability for polishing complex surfaces
as compared to conventional mechanical based methods. This study presents the role of laser
surface processing in mini... | null | null | null | null | null | null |
['Li, Xiaochun', 'Choi, Hongseok', 'Yang, Yong'] | 2019-10-24T18:31:49Z | 2019-10-24T18:31:49Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/77422', 'http://dx.doi.org/10.26153/tsw/4511'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Rapid Manufacturing | Laser-Based Meso/Micro Rapid Manufacturing System | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5cd4264a-7483-49bf-932b-57e0a5adad39/download | null | The meso/micro layered manufacturing technologies have significant implications for the
design and fabrication of complex miniature structures. A laser-based additive/subtractive Rapid
Manufacturing system is thus developed to build meso/micro structures. By incorporating laser
microdeposition and micromachining with a... | The authors are grateful to the support from Wisconsin Alumni Research Foundation and
National Science Foundation. | null | null | null | null | null |
Zhou, Wenchao | 2021-10-21T18:12:38Z | 2021-10-21T18:12:38Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89415 | eng | 2015 International Solid Freeform Fabrication Symposium | Open | ['Lattice Boltzmann Method', 'multiple droplet interaction', 'inkjet deposition', 'contact angle', 'non-ideal surfaces'] | Lattice Boltzmann Simulation of Multiple Droplet Interaction on Non-ideal Surfaces for Inkjet Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e151d9f7-3f91-418b-b23e-1af85d9029a5/download | University of Texas at Austin | Inkjet deposition enables a more efficient, economic, scalable manufacturing process for a wider
variety of materials than other traditional additive techniques. The interaction dynamics of
inkjettted droplets on surfaces are crucial for controlling the formation of the printed patterns, the
accuracy of which is critic... | null | null | null | null | null | null |
['Zhou, Wenchao', 'Loney, Drew', 'Fedorov, Andrei G.', 'Levent Degertekin, F.', 'Rosen, David W.'] | 2021-10-11T21:35:28Z | 2021-10-11T21:35:28Z | 2013 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88651', 'http://dx.doi.org/10.26153/tsw/15585'] | eng | 2013 International Solid Freeform Fabrication Symposium | Open | ['droplet interactions', 'inkjet deposition', 'Lattice Boltzmann Method', 'COMSOL', 'droplet impingement', 'inkjet manufacturing'] | Lattice Boltzmann Simulations of Multiple Droplet Interactions During Impingement on the Substrate | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f2ce02da-0804-4984-8e52-6db732e9880a/download | University of Texas at Austin | Studying material interface evolution in the course of multiple droplet interactions is critical
for understanding the material additive process in inkjet deposition. In this paper, we have
developed a novel numerical model based on the Lattice Boltzmann Method (LBM) to simulate
the interface dynamics during impingemen... | null | null | null | null | null | null |
Bhate, Dhruv | 2021-11-08T23:30:52Z | 2021-11-08T23:30:52Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90076', 'http://dx.doi.org/10.26153/tsw/16997'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['lattice design', 'design optimization', 'crowdsourcing', 'classroom', 'students', 'design for additive manufacturing'] | Lattice Design Optimization: Crowdsourcing Ideas in the Classroom | Conference paper | https://repositories.lib.utexas.edu//bitstreams/998cd9fb-a351-40b1-92ba-c28e0b2a0475/download | University of Texas at Austin | Crowdsourcing is a powerful method of generating ideas, particularly when there are many
possible solutions to a particular problem with no obvious process towards arriving at the optimum
one. In this paper, results of a crowdsourcing exercise conducted in a 30-student classroom are
reported. Students were tasked with ... | null | null | null | null | null | null |
['Tang, Y.', 'Zhao, Y.F.'] | 2021-10-21T19:11:16Z | 2021-10-21T19:11:16Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89425 | eng | 2015 International Solid Freeform Fabrication Symposium | Open | ['lattice-skin structures', 'lattice orientation', 'orientation optimization', 'additive manufacturing'] | Lattice-skin Structures Design with Orientation Optimization | Conference paper | https://repositories.lib.utexas.edu//bitstreams/eebcca65-ec7e-4314-961e-80c2352d5909/download | University of Texas at Austin | Parts with complex geometry can be produced by an additive manufacturing process
without a significant increase of fabrication time and cost. One application of AM technologies
is to fabricate customized lattice structures to enhance products’ performance with less material
and less weight. Thus, design methods of cust... | null | null | null | null | null | null |
['Conner, Timothy Glen', 'Loerwald, Matthew', 'Hayasi, Mohammad', 'Asiabanpour, Bahram'] | 2021-10-04T20:47:18Z | 2021-10-04T20:47:18Z | 8/17/11 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88344', 'http://dx.doi.org/10.26153/tsw/15283'] | eng | 2011 International Solid Freeform Fabrication Symposium | Open | ['Fully Dense Freeform Fabrication', 'FDFF', 'layer alignment', 'layer bonding'] | Layer Alignment and Lamination for the Fully Dense Freeform Fabrication (FDFF) Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/09693bd8-4681-4aa8-93ad-d240026ac8e8/download | University of Texas at Austin | Fully Dense Freeform Fabrication uses an adaptive layering method for predefined sheets
and uses slices cut by a water cutter or laser cutter machine for manufacturing functional parts
through smart layer alignment, adjustable compression system, and compatible bonding
materials. Under pressure and heat, layers are att... | null | null | null | null | null | null |
['Zeng, Kai', 'Patil, Nachiket', 'Gu, Hengfeng', 'Gong, Haijun', 'Pal, Deepankar'] | 2021-10-07T15:28:32Z | 2021-10-07T15:28:32Z | 2013 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88481', 'http://dx.doi.org/10.26153/tsw/15415'] | eng | 2013 International Solid Freeform Fabrication Symposium | Open | ['geometrical accuracy', 'Additive Manufacturing', 'Common Layer Interface', 'StereoLithography Interface', 'layer-bylayer', 'part quality'] | Layer by Layer Validation of Geometrical Accuracy in Additive Manufacturing Processes | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a3014d69-f562-4386-9a03-8c722eb4aa63/download | University of Texas at Austin | Geometrical inaccuracy from shrinkage and residual stress-induced deformations are key sources of
defects in Additive Manufacturing (AM). In most AM processes the CAD model is represented by an STL
file which is sliced into layers. The Common Layer Interface (CLI) and StereoLithography Interface (SLI)
files are two lay... | null | null | null | null | null | null |
['Badrossamay, M.', 'Childs, T. H. C.'] | 2020-02-28T16:25:31Z | 2020-02-28T16:25:31Z | 2006 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80115', 'http://dx.doi.org/10.26153/tsw/7136'] | eng | 2006 International Solid Freeform Fabrication Symposium | Open | Selective Laser Melting | Layer Formation Studies in Selective Laser Melting of Steel Powders | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3b1d5e9e-2ec0-46e3-a000-984e609828d9/download | null | This paper advances the findings of the selective laser melting (SLM) of tool steel and
stainless steel powders. The distinguishing feature is the melting of single layers in deep powder
beds by a continuous CO2 laser. First, effect of process parameters on the surface roughness for
each material is investigated. Based... | null | null | null | null | null | null |
['Kahnert, M.', 'Lutzmann, S.', 'Zaeh, M.F.'] | 2020-03-09T13:41:26Z | 2020-03-09T13:41:26Z | 2007 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80177', 'http://dx.doi.org/10.26153/tsw/7196'] | eng | 2007 International Solid Freeform Fabrication Symposium | Open | Electron Beam Sintering | Layer Formations in Electron Beam Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fce7815f-3b52-4f95-afde-cecd93ef6cc8/download | null | Among direct metal processing manufacturing technologies (Rapid Manufacturing), Electron
Beam Sintering (EBS) exhibits a high application potential. Especially, the fast beam deflection
provided by electromagnetic lenses allows the realization of considerable building speeds and
minor residual stresses. Therefore, this... | null | null | null | null | null | null |
['Bocking, Chris', 'Jacobson, David', 'Bennett, Graham'] | 2019-09-23T16:22:24Z | 2019-09-23T16:22:24Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75955', 'http://dx.doi.org/10.26153/tsw/3054'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Photochemical | Layer Manufacturing of Heat Exchange Elements using Photochemical Machining with Diffusion Brazing 325 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4d716d78-6c2d-4768-b713-6c9030b7a1f2/download | null | A number of heat exchanger elements for a Stirling engine were designed but found to be very difficult to manufacture using conventional technology. Each element required 1800 <1mm oval holes through a 70 mm length of the cooler. The elements were produced by repeated photochemical machining of 185 copper sheets of 0.4... | null | null | null | null | null | null |
['Tang, Lie', 'Ruan, Jianzhoung', 'Sparks, Todd E.', 'Landers, Robert G.', 'Liou, Frank'] | 2021-09-23T22:12:44Z | 2021-09-23T22:12:44Z | 9/10/08 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88036', 'http://dx.doi.org/10.26153/tsw/14977'] | eng | 2008 International Solid Freeform Fabrication Symposium | Open | ['Laser Metal Deposition', 'Particle Swarm Optimization', 'layer-to-layer height control', 'mechanical engineering'] | Layer-to-Layer Height Control for Laser Metal Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d2bc1c1d-7e34-48f0-95ed-3b136d4e3c08/download | null | A Laser Metal Deposition (LMD) height controller design methodology is presented in
this paper. The height controller utilizes the Particle Swarm Optimization (PSO)
algorithm to estimate model parameters between layers using measured temperature and
track height profiles. The process model parameters for the next layer... | null | null | null | null | null | null |
['Ikeshoji, T.-T.', 'Yonehara, M.', 'Aoyagi, K.', 'Yamanaka, K.', 'Chiba, A.', 'Kyogoku, H.', 'Hashitani, M.'] | 2024-03-26T21:23:23Z | 2024-03-26T21:23:23Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124415', 'https://doi.org/10.26153/tsw/51023'] | en_US | 2023 International Solid Freeform Fabrication Symposium | Open | ['PBF-LB', 'lack-of-fusion', 'Inconel 718', 'machine learning', 'additive manufacturing'] | LAYER-WISE IN-PROCESS MONITORING-AND-FEEDBACK SYSTEM BASED ON SURFACE CHARACTERISTICS EVALUATED BY MACHINE-LEARNING-GENERATED CRITERIA | Conference paper | https://repositories.lib.utexas.edu//bitstreams/70b66940-86bd-4147-a73b-2b453d23feb9/download | University of Texas at Austin | In the laser powder bed fusion (PBF-LB) process, a set of parameters that are considered optimal are
selected. Still, a set of parameters cannot accommodate complex model geometries, model placement in the
build chamber, and unforeseen circumstances, leading to internal defects. Therefore, a new in-situ monitoring
and ... | null | null | null | null | null | null |
['Seifi, Seyyed Hadi', 'Tian, Wenmeng', 'Doude, Haley', 'Tschopp, Mark A.', 'Bian, Linkan'] | 2021-11-09T15:24:48Z | 2021-11-09T15:24:48Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90093', 'http://dx.doi.org/10.26153/tsw/17014'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['layer-wise process', 'profile monitoring', 'thermal-microstructure', 'laser-based additive manufacturing'] | Layer-Wise Profile Monitoring of Laser-Based Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3c6f8129-b15b-42a3-a30d-91690a47eb7d/download | University of Texas at Austin | Additive manufacturing (AM) is a novel fabrication technique capable of producing highly
complex parts. Nevertheless, a major challenge is improving the quality of fabricated parts. While
there are a number of ways of approaching this problem, developing data-driven methods that use
AM process signatures to identify th... | null | null | null | null | null | null |
['Starly, B.', 'Nam, J.', 'Lau, W.', 'Sun, W.'] | 2019-10-22T17:39:05Z | 2019-10-22T17:39:05Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76323', 'http://dx.doi.org/10.26153/tsw/3412'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Fabrication | Layered Composite Model for Design and Fabrication of Bone Replacement | Conference paper | https://repositories.lib.utexas.edu//bitstreams/bf66be92-91d5-4c91-97f6-7682917eda34/download | null | Biological tissues are inherently heterogeneous. The design of 3D tissue scaffolds for tissue
engineering application should, if possible, biomimic the complex hierarchy and structural
heterogeneity of the replaced tissues. This is particularly true for design of bone scaffolds with
structural properties compatible wit... | We gratefully acknowledge support from NSF CRCD-9980298 and support from Therics,
Inc. | null | null | null | null | null |
['Yasar, O.', 'Martin, M.', 'Harris, C.', 'Sun, S.', 'Starly, B.'] | 2020-03-10T16:13:44Z | 2020-03-10T16:13:44Z | 2007 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80222', 'http://dx.doi.org/10.26153/tsw/7241'] | eng | 2007 International Solid Freeform Fabrication Symposium | Open | Hydrogel Patterning | Layered Fabrication of Branched Networks Using Lindenmayer Systems | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4184ec42-16e7-45ee-9845-553d14497b2f/download | null | A current challenge impeding the growth of bone tissue engineering is the lack of
functional scaffolds of geometric sizes greater than 10mm due to the inability of cells to
survive deep within the scaffold. It is hypothesized that these scaffolds must have an
inbuilt nutrient distribution network to sustain the uniform... | null | null | null | null | null | null |
['Kietzman, J. W.', 'Cooper, A. G.', 'Weiss, L. E.', 'Schultz, L.', 'Lombardi, J. L.', 'Prinz, F. B.'] | 2018-11-28T21:27:45Z | 2018-11-28T21:27:45Z | 1997 | Mechanical Engineering | doi:10.15781/T22805J53 | http://hdl.handle.net/2152/70333 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['SDM', 'Shape Deposition Manufacturing'] | Layered Manufacturing Material Issues for SDM of Polymers and Ceramics | Conference paper | https://repositories.lib.utexas.edu//bitstreams/14761699-eca2-44b7-8a87-36ecf0b037f1/download | null | Shape Deposition Manufacturing (SDM) is a solid freeform fabrication process which
enables the manufacture of structural parts from engineering materials. This paper discusses the
requirements and constraints for SDM part and sacrificial support materials, including chemical and
physical compatibility, mutual adhesion,... | null | null | null | null | null | null |
['Messia, David', 'Pegna, Joseph', 'Lee, Woo Ho'] | 2018-11-29T21:08:44Z | 2018-11-29T21:08:44Z | 1997 | Mechanical Engineering | doi:10.15781/T2G737Q08 | http://hdl.handle.net/2152/70346 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['3-D LCVD', 'SALD'] | Layered Micro-Wall Structures from the Gas Phase | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f48a57f9-6b72-4022-9b4b-402a90231448/download | null | The use of3-D LCVD with volumetric rate feedback was investigated in the fabrication
ofmicromechanical wall structures. These were constructed by recursive laser scanning and
resulted in layered wall composed ofrecursive line deposition.
Experiments were designed to uncover the relationship between scan rate, volumetri... | null | null | null | null | null | null |
['Zak, G.', 'Sela, M.N.', 'Park, C.B.', 'Benhabib, B.'] | 2018-11-28T16:43:33Z | 2018-11-28T16:43:33Z | 1997 | Mechanical Engineering | doi:10.15781/T2M61C89K | http://hdl.handle.net/2152/70321 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['UV Laser Based System', 'Composite Liquid', 'liquid leveling subsystems'] | A Layered-Manufacturing Process For the Fabrication of Glass-Fiber-Reinforced Composites | Conference paper | https://repositories.lib.utexas.edu//bitstreams/0221f42e-87cc-4f7b-b7fd-51b6a1ee92b1/download | null | In this paper, we present a rapid manufacturing process for the layered fabrication of
polymer-based composite parts using short discontinuous fibers as reinforcements. In the recent
past, numerous research efforts, similar to ours, have been made to produce fiber-reinforced
plastic parts via layered manufacturing meth... | null | null | null | null | null | null |
['Abdelrahman, Mostafa', 'Starr, Thomas L.'] | 2021-10-12T21:38:54Z | 2021-10-12T21:38:54Z | 2014 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88747', 'http://dx.doi.org/10.26153/tsw/15681'] | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['Polymer Laser Sintering', 'end-use parts', 'high resolution infrared thermal imaging', 'thermal imaging'] | Layerwise Monitoring of Polymer Laser Sintering Using Thermal Imaging | Conference paper | https://repositories.lib.utexas.edu//bitstreams/7bbf5350-7846-496f-89f3-17f249c230db/download | University of Texas at Austin | Polymer Laser Sintering (LS) is used increasingly for manufacture of end-use parts.
Improved methods of monitoring the process are needed to certify the quality of these parts. This
paper describes the use of high resolution infrared thermal imaging to monitor the temperature of
individual layers before, during and aft... | null | null | null | null | null | null |
['Gill, David D.', 'Griffith, Michelle L.', 'Reckaway, Daryl E.', 'Briner, Clifton F.', 'Abrams, Douglas G.'] | 2019-11-20T16:49:13Z | 2019-11-20T16:49:13Z | 2003 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/78482', 'http://dx.doi.org/10.26153/tsw/5567'] | eng | 2003 International Solid Freeform Fabrication Symposium | Open | Geometries | LENS Deposition of Complex Geometries | Conference paper | https://repositories.lib.utexas.edu//bitstreams/2f2d900e-30bd-4daf-84ca-fde204695386/download | null | The Laser Engineered Net Shaping (LENS®) system at Sandia National Laboratories, a
laser-based direct metal deposition process, was recently used for the fabrication of a complex
prototype. The LENS process involved the challenges of adjacent areas of thick and thin cross
section, overhanging unsupported features, high... | null | null | null | null | null | null |
['Gill, D. D.', 'Atwood, C. J.', 'Voth, T. E.', 'Robbins, J.', 'Dewhurst, P.', 'Taggart, D. G.'] | 2020-03-10T14:30:37Z | 2020-03-10T14:30:37Z | 2007 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80210', 'http://dx.doi.org/10.26153/tsw/7229'] | eng | 2007 International Solid Freeform Fabrication Symposium | Open | solid freeform fabrication | LENS® and SFF: Enabling Technologies for Optimized Structures | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f1d9de28-6146-4de2-acd6-2284351e6dba/download | null | Optimized, lightweight, high-strength structures are needed in many applications from aerospace
to automotive. In pursuit of such structures, there have been proposed analytical solutions and
some specialized FEA solutions for specific structures such as automobile frames. However,
generalized 3D optimization methods h... | null | null | null | null | null | null |
['White, Liam', 'Quaife, Bryan', 'Borish, Michael', 'Adkins, Cameron', 'Roschli, Alex'] | 2024-03-26T17:10:56Z | 2024-03-26T17:10:56Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124379', 'https://doi.org/10.26153/tsw/50987'] | en_US | 2023 International Solid Freeform Fabrication Symposium | Open | ['hybrid manufacturing', 'additive manufacturing', 'subtractive manufacturing', 'OpenVDB', 'sparse volumetric grid', 'voxel grid', 'level set function', 'signed distance function', 'marching squares'] | Level Set Grids for Hybrid Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/014c22ba-300f-4422-9191-7be9ebbd4264/download | University of Texas at Austin | We propose a novel hybrid model, the Level Set Grid, to facilitate parallel additive and
subtractive processes in hybrid manufacturing. The Level Set Grid combines the strengths of
explicit and implicit representations, offering precise modeling of evolving geometries and fast
and efficient collision detection. This re... | null | null | null | null | null | null |
['Chung, Haseung', 'Das, Suman'] | 2019-11-20T16:27:48Z | 2019-11-20T16:27:48Z | 2003 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/78473', 'http://dx.doi.org/10.26153/tsw/5558'] | eng | 2003 International Solid Freeform Fabrication Symposium | Open | Laser Melting | Level Set Methods for Modeling Laser Melting of Metals | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f58a319b-8495-478d-9774-ee937a38a11c/download | null | The physical model describing heat transfer and melting taking place during and after the
interaction of a laser beam with a semi-infinite metal surface is based on the classical Stefan
problem with appropriately chosen boundary conditions to reflect direct selective laser sintering
of metals. A level set method for so... | null | null | null | null | null | null |
['Rodriguez, Carlos', 'Barraza, Sol', 'Diaz, Julio', 'Arrieta, Edel', 'Hernandez, Alejandro', 'Hicks, Adam', 'Wicker, Ryan B.', 'Medina, Francisco'] | 2023-02-09T18:56:35Z | 2023-02-09T18:56:35Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117440', 'http://dx.doi.org/10.26153/tsw/44321'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | bell crank | Lightweight Additively Manufactured Bell Crank | Conference paper | https://repositories.lib.utexas.edu//bitstreams/2adbc897-d45c-4847-83fe-3c7bec49607e/download | null | Due to the long service life of Air Force Legacy aircrafts, some companies that used to
manufacture their components and spares are no longer able to do so. In this case, Additive Man-
ufacturing (AM) poses as a viable option to manufacture those spares when needed and even im-
prove their cost, weight, and performanc... | null | null | null | null | null | null |
['Meisel, Nicholas A.', 'Williams, Christopher B.', 'Druschitz, Alan'] | 2021-10-05T18:35:24Z | 2021-10-05T18:35:24Z | 8/16/12 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88401', 'http://dx.doi.org/10.26153/tsw/15340'] | eng | 2012 International Solid Freeform Fabrication Symposium | Open | ['indirect 3D printing', 'cellular structures', 'metal casting'] | Lightweight Metal Cellular Structures via Indirect 3D Printing and Casting | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5b7fd9be-0631-47d2-8f14-16985aa834b4/download | University of Texas at Austin | Cellular materials offer high strength accompanied by low-density and can offer high
stiffness, good impact-absorption, and thermal and acoustic insulation. In this paper, the authors
describe their progress towards exploring the use of metal casting into 3D printed sand molds for
creating cellular materials and sandwi... | null | null | null | null | null | null |
['Roe, Matthew', 'Yang, Li'] | 2023-02-24T14:53:53Z | 2023-02-24T14:53:53Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117526', 'http://dx.doi.org/10.26153/tsw/44406'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | ['Interpenetrating design', 'cellular structure', 'design', 'experimentation investigation'] | A Limited -Scale Expeirmental Invstigation of the Unit Cell Topology Effects on Interpenetrating Cellular Structures | Conference paper | https://repositories.lib.utexas.edu//bitstreams/1136dab8-c16b-4b88-8621-ee75e871d8d0/download | null | The interpenetrating cellular structure is a novel recent design concept that has been subjected to some
preliminary research efforts in recent years. As there still exist relatively limited understanding of such
design concept, the current work aimed to provide additional insights via experimental-based study. Sever... | null | null | null | null | null | null |
Bolvie, Klas | 2019-10-18T14:59:54Z | 2019-10-18T14:59:54Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76230', 'http://dx.doi.org/10.26153/tsw/3319'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | Sinterstation | Limits of Loose Metal Powder Density in the Sinterstation | Conference paper | https://repositories.lib.utexas.edu//bitstreams/705a41d3-b331-4e46-bc5f-268dd046baa7/download | null | The possibility to increase the density of applied metal powder in the Sinterstation has been
investigated by successive addition of smaller sized particle fractions to a base powder. The optimal
composition for each blend was determined experimentally, and their apparent densities were compared
to the densities after ... | null | null | null | null | null | null |
['Poudel, Arun', 'Shamsaei, Nima', 'Shao, Shuai'] | 2021-12-06T22:17:48Z | 2021-12-06T22:17:48Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90695', 'http://dx.doi.org/10.26153/tsw/17614'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['linear elastic finite element analysis', 'stress intensity factor', 'three-dimensional defects', 'effect of defect shape'] | Linear Elastic Finite Element Calculations of Short Cracks Initiated from the Defects: Effect of Defect Shape and Size | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d4a56c56-4a01-463e-9e51-643ece00f52b/download | University of Texas at Austin | The defects present in an additively manufactured component deteriorate its mechanical,
especially fatigue performance. During loading, these defects influence the stress concentration,
promote the fatigue crack initiation and thus, lead to a lower fatigue performance. In this study,
the effect of defect shape and size... | null | null | null | null | null | null |
['Ullett, Jill S.', 'Rodrigues, Stanley J.', 'Chartoff, Richard P.'] | 2018-11-02T15:11:22Z | 2018-11-02T15:11:22Z | 1995 | Mechanical Engineering | doi:10.15781/T25H7CD0C | http://hdl.handle.net/2152/69333 | eng | 1995 International Solid Freeform Fabrication Symposium | Open | ['stereolithography', 'laser cured polymer', 'photo-polymer cure'] | Linear Shrinkage of Stereolithography Resins | Conference paper | https://repositories.lib.utexas.edu//bitstreams/82f4e828-c093-465a-8e41-ca892ca869a4/download | null | The linear shrinkage of an acrylate and an epoxy based stereolithography resin was
measured during cure. A helium-cadmium (He-Cd) laser cured strands of resin as is done in the
stereolithography process using two exposures. The exposure time was held constant while the
delay time between exposures was varied. It was fo... | null | null | null | null | null | null |
['Cesarano TI, Joseph', 'Baer, Thomas A.', 'Calvert, Paul'] | 2018-11-16T17:09:14Z | 2018-11-16T17:09:14Z | 1997 | Mechanical Engineering | doi:10.15781/T2NG4HB9B | http://hdl.handle.net/2152/70299 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['freeform fabrication', 'dense ceramics', 'structural ceramics'] | Liquid Metal Jetting for Printing Metal Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c71be89c-c5d4-4c74-9f6b-68c1657f7c4c/download | null | Liquid Metal Jetting (LMJ) is solid freeform fabrication process for producing metal
mechanical parts and electronic interconnects. It is a technology similar to ink jet printing
where individual molten droplets are accurately printed. LMJ will produce metal parts on
demand from a CAD database with functional performan... | null | null | null | null | null | null |
['Kirchebner, Benedikt', 'Weidner, Christoph', 'Ploetz, Maximilian', 'Rehekampff, Christoph', 'Volk, Wolfram', 'Lechner, Philipp'] | 2024-03-26T21:25:41Z | 2024-03-26T21:25:41Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124416', 'https://doi.org/10.26153/tsw/51024'] | en_US | 2023 International Solid Freeform Fabrication Symposium | Open | ['liquid metal jetting', 'liquid salt jetting', 'support structures', 'additive manufacturing'] | LIQUID METAL JETTING OF ALUMINUM PARTS WITH SALT SUPPORT STRUCTURES | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a0f2ab6f-7f9d-46ba-9858-5c332ad9584c/download | University of Texas at Austin | Liquid metal jetting (LMJ) bears the potential of being a fast part manufacturing
technology while using a cheap raw material. LMJ is a subtype of material jetting (MJT) and the
parts are built by successively depositing droplets of molten metal onto a build platform. For full
3D capability, support structures are nece... | null | null | null | null | null | null |
Crockett, R.S. | 2018-11-14T17:06:06Z | 2018-11-14T17:06:06Z | 1996 | Mechanical Engineering | doi:10.15781/T2RJ49F1Z | http://hdl.handle.net/2152/70242 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['stereodeposition', 'FDC', 'Advanced ceramics Research'] | The Liquid-to-Solid Transition in Stereodeposition Techniques | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c715f069-efa3-4965-af2f-fc89d1bfebc7/download | null | null | null | null | null | null | null | null |
['Maxwell, James', 'Borse, Sandesh'] | 2018-12-06T21:05:50Z | 2018-12-06T21:05:50Z | 1997 | Mechanical Engineering | doi:10.15781/T29W09K05 | http://hdl.handle.net/2152/71428 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['micromachining', 'excimer lasers'] | The LMP Process: Layered Metal Prototyping of Titanium from Condensed Thin-Films for Microelectromechanical Devices | Conference paper | https://repositories.lib.utexas.edu//bitstreams/cf8328db-417c-495f-b198-3d7b033ce461/download | null | Layered prototyping of three-dimensional titanium micromechanical
components was demonstrated using selected area laser photolysis of liquid-phase
organo-metallic and metal halide thin films. Scanning KrF and
XeF excimer lasers were employed at 248 and 351 nm, respectively, generating
solid titanium traces from condens... | null | null | null | null | null | null |
['Simmons, Jacob', 'Daeumer, Matthias', 'Azizi, Arad'] | 2021-11-11T16:36:46Z | 2021-11-11T16:36:46Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90240', 'http://dx.doi.org/10.26153/tsw/17161'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['laser powder-bed fusion', 'additive manufacturing', 'thermal conductivity', 'thermal transport', 'stainless steel', '316L', 'metal 3D printing'] | Local Thermal Conductivity Mapping of Selective Laser Melted 316L Stainless Steel | Conference paper | https://repositories.lib.utexas.edu//bitstreams/6f12fe49-486a-45c7-a47e-9db29b2beb66/download | University of Texas at Austin | The variation in thermal conductivity of 316L stainless steel samples produced with
selective laser melting with a varying process parameters is investigated in the bulk and in the
microscale. A critical scan rate was observed, while holding all other process parameters constant,
above which the porosity started to rap... | null | null | null | null | null | null |
['Raja, Sandeep', 'Court, Nadia', 'Sidhu, Jagjit', 'Tuck, Chris', 'Hague, Richard'] | 2021-09-30T14:23:43Z | 2021-09-30T14:23:43Z | 9/23/10 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88255', 'http://dx.doi.org/10.26153/tsw/15196'] | eng | 2010 International Solid Freeform Fabrication Symposium | Open | ['Direct Write', 'Additive Manufacturing', 'polymer thick film inks', 'inkjet inks', 'curing kinetics'] | Localised Broadband Curing of Directly Written Inks for the Production of Electrical Devices for Aerospace Applications | Conference paper | https://repositories.lib.utexas.edu//bitstreams/7ad59c9b-166f-431b-b220-5d3227c45c64/download | University of Texas at Austin | Direct Write (DW) technologies afford the possibility of printing electronics and
sensors directly onto structural components. This allows advantageous weight saving by
making good use of available space through conformal printing whilst adding functionality.
To enable DW fabrication of devices onto large aerospace str... | null | null | null | null | null | null |
['Paudel, Basil J.', 'Thompson, Scott M.'] | 2021-11-18T17:05:25Z | 2021-11-18T17:05:25Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90430', 'http://dx.doi.org/10.26153/tsw/17351'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['laser-powder bed fusion', 'heat transfer', 'simulation', 'multi-pass', 'numerical methods'] | Localized Effect of Overhangs on Heat Transfer During Laser Powder Bed Fusion Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5c6a9a3b-2c2a-4dde-b416-2e419d5a1db2/download | University of Texas at Austin | The current study concentrates on the effect of local part topology on heat transfer during the laser-powder
bed fusion (L-PBF) additive manufacturing (AM) process. The high heat flux diffusion (i.e. thermal
spreading) is numerically modeled and investigated for the L-PBF of a thin-walled part with various
negative dra... | null | null | null | null | null | null |
['Aggarangsi, Pruk', 'Beuth, Jack L.'] | 2020-03-05T20:01:06Z | 2020-03-05T20:01:06Z | 2006 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80153', 'http://dx.doi.org/10.26153/tsw/7174'] | eng | 2006 International Solid Freeform Fabrication Symposium | Open | Additive Manufacturing | Localized Preheating Approaches for Reducing Residual Stress in Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/12a209fc-325d-4e69-a4b8-0b0dee085179/download | null | Uniform preheating can be used to limit residual stress in the solid freeform
fabrication of relatively small parts. However, in additive manufacturing processes,
where a feature is deposited onto a much larger part, uniform preheating of the entire
assembly is typically not practical. This paper considers localized pr... | null | null | null | null | null | null |
['Abolmaali, Saina', 'Vinel, Alexander', 'Fox, Jason', 'Liu, Jia', 'Silva, Daniel', 'Shamsaei, Nima'] | 2021-12-01T23:10:48Z | 2021-12-01T23:10:48Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90650', 'http://dx.doi.org/10.26153/tsw/17569'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', 'surface roughness', 'ANOVA test', 'extreme value theory'] | Location and Orientation Dependency in Surface Roughness of Nickel Super Alloy 625 Parts: Statistical and Distributional Analysis | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f1d21574-fc24-4d93-9f95-b7641f326e9c/download | University of Texas at Austin | Surface roughness is an important characteristic of additively manufactured parts,
since it can impact various mechanical properties, such as friction or fatigue life. Further,
surface roughness can change significantly depending on a number of factors: part
geometry, location on the build platform, process parameters,... | null | null | null | null | null | null |
['Lee, Seungjong', 'Muhammad, Muztahid', 'Zheng, Jingyi', 'Shao, Shuai', 'Shamsaei, Nima'] | 2021-12-01T23:13:52Z | 2021-12-01T23:13:52Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90651', 'http://dx.doi.org/10.26153/tsw/17570'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', 'AM', 'laser beam powder bed fusion', 'LB-PBF', 'surface roughness', 'stainless steel', 'fatigue'] | Locational Dependency of Additively Manufactured Parts: Effects of Surface Roughness on Fatigue Behavior | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d0df7228-778e-449c-9df9-55d2d8361b50/download | University of Texas at Austin | Surface roughness (SR) can vary significantly among parts manufactured at different locations on
the same build platform because of the gas flow and powder recoating process in current laser
beam powder bed fusion (LB-PBF) technique. In this study, intra-build SR variation across
locations was investigated for LB-PBF 3... | null | null | null | null | null | null |
['Lang, Andrew', 'Castle, James', 'Bristow, Douglas A.', 'Landers, Robert G.', 'Siddhardh Nadendla, Venkata Sriram'] | 2023-02-09T18:53:45Z | 2023-02-09T18:53:45Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117439', 'http://dx.doi.org/10.26153/tsw/44320'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | regression analysis | Logistic regression classification to predict regional anomalies in nominally printed volume of separate test pieces | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c61eeb2e-df34-4f18-ab2a-e99ed4285855/download | null | Supervised machine learning techniques have struggled to accurately predict voxel-wise
occurrence of anomalies in metal powder bed parts printed with optimal processing parameters.
This work discusses a method to visualize machine learning model predictions in 3D to interrogate
patterns in the predictions. A simple ... | null | null | null | null | null | null |
['Bagsik, A.', 'Schöppner, V.', 'Klemp, E.'] | 2021-10-06T20:50:05Z | 2021-10-06T20:50:05Z | 8/22/12 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88441', 'http://dx.doi.org/10.26153/tsw/15378'] | eng | 2012 International Solid Freeform Fabrication Symposium | Open | ['Fused Deposition Modeling', 'long-term ageing', 'tensile specimes', 'Ultem*9085'] | Long-Term Ageing Effects on Fused Deposition Modeling Parts Manufactured with Ultem*9085 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/af65892f-a70e-40b9-948e-edba4bacaea4/download | University of Texas at Austin | Relating to the direct manufacturing of end-use parts the knowledge about the effect of the long-term
ageing of Fused Deposition Modeling (FDM) parts is of particular importance. For this, tensile specimens were
stored for time periods of up to 52 weeks in two different conditions and the testing was conducted at diffe... | null | null | null | null | null | null |
['Schmid, M.', 'Woellecke, F.', 'Levy, G.N.'] | 2021-10-05T19:04:08Z | 2021-10-05T19:04:08Z | 8/15/12 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88410', 'http://dx.doi.org/10.26153/tsw/15349'] | eng | 2012 International Solid Freeform Fabrication Symposium | Open | ['Selective Laser Sintering', 'automotive application', 'Duraform® DF', 'Duraform® HST SLS', 'sealants'] | Long-Term Durability of SLS Polymer Components Under Automotive Application Environment | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f38e519d-a3f8-4098-bde3-95893b088f17/download | University of Texas at Austin | Selective Laser Sintering (SLS) is close to be accepted as a genuine production technique
(Additive Manufacturing). However, one problem restricting a more frequent specific use of
SLS-parts is the limited or unknown long-term or functional behaviour under particular
environmental conditions. In our specific case, for ... | null | null | null | null | null | null |
['Ali, Mohammad Alshaikh', 'Huseynov, Orkhan', 'Fidan, Ismail', 'Vondra, Fred'] | 2024-03-26T21:28:38Z | 2024-03-26T21:28:38Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124417', 'https://doi.org/10.26153/tsw/51025'] | en_US | 2023 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', 'metal casting', 'fused filament fabrication', 'material extrusion', 'investment casting'] | Lost-PLA Casting Process Development Using Material Extrusion with Low-Weight PLA | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5a7abb66-3ce7-4f9c-a1e9-12e4ac9b2d7c/download | University of Texas at Austin | The goal of this research is to develop a baseline procedure for lost-PLA casting process
of aluminum. Traditional Manufacturing techniques and Smart Manufacturing techniques have
their advantages and disadvantages. Integrating the traditional and modern aspects of
manufacturing enhances the capabilities of manufacturi... | null | null | null | null | null | null |
['Hume, Chad A.', 'Rosen, David W.'] | 2021-11-15T20:42:36Z | 2021-11-15T20:42:36Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90264', 'http://dx.doi.org/10.26153/tsw/17185'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['numerical modeling', 'methodology', 'predictive models', 'material jetting', 'material jetting-based additive manufacturing'] | Low Cost Numerical Modeling of Material Jetting-Based Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/dd39aae1-82b9-4150-b3e7-67b3fa5cdcf5/download | University of Texas at Austin | Material jetting-based additive manufacturing is a promising manufacturing approach
with increasing interest in mesoscale applications such as microfluidics, membranes, and
microelectronics. At these size scales, significant edge deformation is observed limiting the
resolvable feature size. Currently, predicting and co... | null | null | null | null | null | null |
['Barrett, Christopher', 'Carradero, Carolyn', 'Harris, Evan', 'McKnight, Jeremy', 'Walker, Jason', 'MacDonald, Eric', 'Conner, Brett'] | 2021-11-15T21:59:26Z | 2021-11-15T21:59:26Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90285', 'http://dx.doi.org/10.26153/tsw/17206'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['spatter tracking', 'stereovision', 'low cost', 'high speed', 'cameras', 'laser powder bed fusion'] | Low Cost, High Speed Stereovision for Spatter Tracking in Laser Powder Bed Fusion | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8661556e-585e-4687-a941-86d0cdc81190/download | University of Texas at Austin | Powder Bed Fusion Additive Manufacturing affords new design freedoms for metallic
structures with complex geometries in high performance materials. The aerospace industry has
identified the inherent benefits of AM not just in terms of shape creation but also with regard to
producing replacement parts for an aging fleet... | null | null | null | null | null | null |
['Ullett, J. S.', 'Chartoff, R. P.', 'Schultz, J. W.', 'Bhatt, J. C.', 'Dotrong, M.', 'Pogue, R. T.'] | 2018-11-15T20:52:32Z | 2018-11-15T20:52:32Z | 1996 | Mechanical Engineering | doi:10.15781/T27D2QT2J | http://hdl.handle.net/2152/70279 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['high performance resins', 'dimensional accuracy', 'stereolithography'] | Low Shrinkage, High T Liquid Crystal Resins For Sterelithography | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5f6def77-ca29-4aaf-a1f3-915b07c26efc/download | null | null | null | null | null | null | null | null |
['Yamauchi, Yuki', 'Kigure, Takashi', 'Niino, Toshiki'] | 2021-11-01T21:45:00Z | 2021-11-01T21:45:00Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89765 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['PA powder', 'fiber laser', 'low temperature laser sintering'] | Low Temperature Laser Sintering of PA Powder Using Fiber Laser | Conference paper | https://repositories.lib.utexas.edu//bitstreams/2c821765-8de5-4f29-9937-107ca2643969/download | University of Texas at Austin | Low temperature process is a novel plastic laser sintering process having potential for improving
powder recyclability dramatically. Although fiber laser has been rarely used for plastic laser
sintering in commercial base, its ability of being focused in a very small spot suits it to improve
precision of plastic laser ... | null | null | null | null | null | null |
['Menge, D.', 'Schmid, H.-J.'] | 2021-12-01T23:46:40Z | 2021-12-01T23:46:40Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90662', 'http://dx.doi.org/10.26153/tsw/17581'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['low temperature laser sintering', 'laser sintering system', 'laser sintering', 'PA12'] | Low Temperature Laser Sintering on a Standard System: First Attempts and Results with PA12 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/15054e14-1008-4385-8325-98893b2a9b31/download | University of Texas at Austin | The laser sintering process has been a well-established AM process for many years.
Disadvantages of LS are the low material variety and the thermal damage of the unprocessed
material. The low temperature laser sintering attacks at this point and processes powder material at
a build chamber temperature lower than the re... | null | null | null | null | null | null |
['Niino, Toshiki', 'Uehara, Takashi'] | 2021-10-21T14:55:22Z | 2021-10-21T14:55:22Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89385 | eng | 2015 International Solid Freeform Fabrication Symposium | Open | ['plastic laser sintering', 'warpage', 'PEEK', 'temperature', 'powder bed'] | Low Temperature Selective Laser Melting of High Temperature Plastic Powder | Conference paper | https://repositories.lib.utexas.edu//bitstreams/97895c28-4025-4ca4-99ee-55274f5d75ee/download | University of Texas at Austin | In a typical plastic laser sintering or melting system, powder bed temperature is
maintained above the recrystallization temperature of the powder material to prevent
the parts under process from warping until the whole layers are processed. Although this
countermeasure can elegantly suppress the part warpage, heating ... | null | null | null | null | null | null |
['Chen, Jingdong', 'Smith, Douglas E.'] | 2021-11-18T19:13:13Z | 2021-11-18T19:13:13Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90474', 'http://dx.doi.org/10.26153/tsw/17395'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['melt flow', 'polymer filaments', 'low-cost', 'fused filament fabrication', 'additive manufacturing'] | A Low-Cost Approach for Characterizing Melt Flow Properties of Filaments Used in Fused Filament Fabrication Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a74c07bd-06f9-4d96-8856-16b204b8539b/download | University of Texas at Austin | Users of Fused Filament Fabrication (FFF) can choose from a wide variety of new materials as
filament producers continue to introduce new polymer and polymer composite filament into the
marketplace. This paper describes a low-cost device capable of measuring the rheological
properties of off-the-shelf polymer filament.... | null | null | null | null | null | null |
['Gibson, Ian', 'Ming, Ling Wai'] | 2018-11-28T19:25:58Z | 2018-11-28T19:25:58Z | 1997 | Mechanical Engineering | doi:10.15781/T2ZG6GS99 | http://hdl.handle.net/2152/70326 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['Selective Laser Sintering', 'Process control'] | Low-cost Machine Vision Monitoring of the SLS Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d6d815a1-9dd1-41e4-b50f-919bd1b575aa/download | null | During the building of a part using SLS, it is common practice to adjust the temperature
parameters. It is important to control these parameters because ifthey are too high then part
breakout is difficult. Ifthey are too low then parts have poor material properties. One method of
controlling these parameters is by obse... | null | null | null | null | null | null |
['Mathewson, Brian B.', 'Hebbar, Ravi', 'Choi, Sangeun', 'Newman, Wyatt S.', 'Cawley, James D.', 'Heuer, Arthur H.'] | 2019-02-22T19:55:34Z | 2019-02-22T19:55:34Z | 1998 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73467', 'http://dx.doi.org/10.26153/tsw/617'] | eng | 1998 International Solid Freeform Fabrication Symposium | Open | ['CAM-LEM', 'layer-to-Iayer'] | Machine Design, Control and Performance of Automated Computer-Aided Manufacturing of Laminated Engineering Materials | Conference paper | https://repositories.lib.utexas.edu//bitstreams/efab630e-29ca-4906-841e-40a8b4109944/download | null | This paper describes machine design and control aspects of automating a viable
CAM-LEM layered manufacturing process. The cut-then-stack sheet-based approach permits
using sheet materials of different thicknesses, enabling optimization of build speed. Further,
this cut-then-stack approach offers the possibility of asse... | null | null | null | null | null | null |
['Hilton, Z.T.', 'Gray, Jamee'] | 2023-04-03T15:35:23Z | 2023-04-03T15:35:23Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117716', 'http://dx.doi.org/10.26153/tsw/44595'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | Laser powder bed fusion | Machine Health Verification Process for Laser Powder Bed Fusion | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8e5a24ce-6396-4287-9a45-1073e1bd9635/download | null | Laser powder bed fusion (LPBF) machines are complex systems comprised of a number of
interconnected subsystems which work in concert during the laser powder bed fusion process.
The health, i.e. consistency in performance, of these complex systems must be monitored and
verified to ensure consistency in the process du... | null | null | null | null | null | null |
Beaman, Joseph J. | 2018-04-19T18:42:12Z | 2018-04-19T18:42:12Z | 1992 | Mechanical Engineering | doi:10.15781/T2FX74F7X | http://hdl.handle.net/2152/64413 | eng | 1992 International Solid Freeform Fabrication Symposium | Open | ['Department of Mechanical Engineering', 'CAD representation', 'Selective Laser Sintering', 'SLS'] | Machine Issues Associated with Solid Freeform Fabrication | Conference paper | https://repositories.lib.utexas.edu//bitstreams/7b752b4c-0bbe-40d5-87a7-e3803639884c/download | null | Before we begin a discussion of machine issues it is important that we categorize
exactly what we mean. There are differences between the design of a research piece of
equipment as compared to a commercial piece of equipment. A research piece of
equipment has to have the flexibility to demonstrate a success pattern. A ... | null | null | null | null | null | null |
['Wang, Jier', 'Panesar, Ajit'] | 2024-03-27T15:47:15Z | 2024-03-27T15:47:15Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124489', 'https://doi.org/10.26153/tsw/51097'] | en | 2023 International Solid Freeform Fabrication Symposium | Open | ['metamaterial', 'machine learning', 'additive manufacturing'] | Machine Learning Assisted Mechanical Metamaterial Design for Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f30fe5c2-03cf-4945-914e-9bec268a4692/download | University of Texas at Austin | Metamaterials, widely studied for its counterintuitive property such as negative Poisson’s ratio, negative
refraction, negative thermal expansion, and employed in various fields, are recognised to provide foundation for
superior multiscale structural designs. However, current mechanical metamaterial design methods usua... | null | null | null | null | null | null |
['Wang, J.', 'Panesar, A.'] | 2021-12-01T21:14:26Z | 2021-12-01T21:14:26Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90614', 'http://dx.doi.org/10.26153/tsw/17533'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['lattice structures', 'machine learning', 'neural network', 'finite element'] | Machine Learning Derived Graded Lattice Structures | Conference paper | https://repositories.lib.utexas.edu//bitstreams/44e74772-3b48-4e18-a066-42d6dcd6486b/download | University of Texas at Austin | Herein, we propose a new lattice generation strategy that is computationally cheaper and produces high-quality geometric definition based on Machine Learning (ML) when compared to traditional methods. To
achieve the design of high-performance unit cells, firstly, the optimal mechanical property for each cell region
is ... | null | null | null | null | null | null |
['Zhang, Wentai', 'Mehta, Akash', 'Desai, Prathamesh S.', 'Higgs, C. Fred III'] | 2021-11-03T21:43:39Z | 2021-11-03T21:43:39Z | 2017 | Mechanical Engineering | null | https://hdl.handle.net/2152/89941 | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing (AM)', 'powder spreading process map', 'discrete element method', 'machine learning'] | Machine Learning Enabled Powder Spreading Process Map for Metal Additive Manufacturing (AM) | Conference paper | https://repositories.lib.utexas.edu//bitstreams/dfc8b05c-4978-4ad7-b992-60178e92f62a/download | University of Texas at Austin | The metal powder-bed AM process involves two main steps: the spreading of powder layer and
selective fusing or binding the spread layer. Most AM research is focused on powder fusion.
Powder spreading is more rarely studied but is of significant importance for considering the quality
of the final part and total build ti... | null | null | null | null | null | null |
['Petrich, Jan', 'Gobert, Christian', 'Phoha, Shashi', 'Nassar, Abdalla R.', 'Reutzel, Edward W.'] | 2021-11-03T22:29:31Z | 2021-11-03T22:29:31Z | 2017 | Mechanical Engineering | null | https://hdl.handle.net/2152/89950 | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['machine learning', 'defect detection', 'high resolution layerwise imaging', 'post-build CT scans', 'powder bed fusion additive manufacturing'] | Machine Learning for Defect Detection for PBFAM Using High Resolution Layerwise Imaging Coupled with Post-Build CT Scans | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3d372929-9f3b-4aab-ae88-80276de95582/download | University of Texas at Austin | This paper develops a methodology based on machine learning to detect defects during
Powder Bed Fusion Additive Manufacturing (PBFAM) processes using data from high resolution
images. The methodology is validated experimentally using both a support vector machine (SVM)
and a neural network (NN) for binary classificatio... | null | null | null | null | null | null |
['He, Haiyang', 'Yang, Yang', 'Pan, Yayue'] | 2021-11-09T14:56:58Z | 2021-11-09T14:56:58Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90088', 'http://dx.doi.org/10.26153/tsw/17009'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['continuous projection stereolithography', 'CLIP', 'machine learning', 'deep neural network', 'siamese network', 'continuous printing speed'] | Machine Learning for Modeling of Printing Speed in Continuous Projection Stereolithography | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a159aa64-d973-44a0-ad63-79f6a61eac96/download | University of Texas at Austin | Continuous projection stereolithography technologies, also known as the Continuous Liquid Interface
Production (CLIP), can achieve build speeds an order of magnitude faster than conventional layer-by-layer
stereolithography process. However, identification of the proper continuous printing speed remains a grand
challen... | null | null | null | null | null | null |
['Pike, J.A.', 'Klett, J.', 'Kunc, V.', 'Duty, C.E.'] | 2023-04-03T17:49:25Z | 2023-04-03T17:49:25Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117731', 'http://dx.doi.org/10.26153/tsw/44610'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | Additive manufacturing | Machine Learning in Additive Manufacturing: A Review of Learning Techniques and Tasks | Conference paper | https://repositories.lib.utexas.edu//bitstreams/9a21c73e-897f-4f63-8c5e-3b411f49bc7a/download | null | Due to recent advances, Machine Learning (ML) has gained attention in the Additive
Manufacturing (AM) community as a new way to improve parts and processes. The capability of
ML to produce insights from large amounts of data by solving tasks such as classification,
regression, and clustering provide possibilities to... | null | null | null | null | null | null |
['Rajeshirke, Mithila', 'Alkunte, Suhas', 'Huseynov, Orkhan', 'Fidan, Ismail'] | 2024-03-25T22:43:47Z | 2024-03-25T22:43:47Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124327', 'https://doi.org/10.26153/tsw/50935'] | en_US | 1990 International Solid Freeform Fabrication Symposium | open | ['material extrusion', 'fatigue prediction', 'composites', 'machine learning', 'additive manufacturing'] | Machine Learning-Assisted Prediction of Fatigue Behaviour in Fiber-Reinforced Composites Manufactured via Material Extrusion | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5fb9e9b1-9db1-404a-80c7-31667917f322/download | University of Texas at Austin | The recent advancements in material extrusion (MEX) have expanded the potential use of
polymeric and composite structures in a wide range of structural and load-bearing applications.
However, cyclic loads can induce fatigue, resulting in the development of structural damage and
potentially leading to catastrophic failu... | null | null | null | null | null | null |
['Mondal, Sudeepta', 'Menon, Nandana', 'Ray, Asok', 'Basak, Amrita'] | 2023-01-26T15:37:49Z | 2023-01-26T15:37:49Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117319', 'http://dx.doi.org/10.26153/tsw/44200'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | nickel-base alloys | Machine Learning-Assisted Prediction of Thermophysical Properties of Nickel-Base Alloys over a Temperature Range | Conference paper | https://repositories.lib.utexas.edu//bitstreams/58f3b0a2-3b84-4391-9b45-fd2f6a40b382/download | null | Calculation of thermophysical properties of complex metallic alloys as functions of composition
and temperature is essential to design new alloy systems that are suitable for advanced
manufacturing processes such as additive manufacturing. Once the properties are obtained, they
are typically integrated with a meso-s... | null | null | null | null | null | null |
['Hayasi, Mohammad T.', 'Asiabanpour, Bahram'] | 2021-09-23T20:44:48Z | 2021-09-23T20:44:48Z | 9/10/08 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88023', 'http://dx.doi.org/10.26153/tsw/14964'] | eng | 2008 International Solid Freeform Fabrication Symposium | Open | ['machine path generation', 'direct slicing', 'design-by-feature', 'feature recognition'] | Machine Path Generation Using Direct Slicing from Design-by-Feature Solid Model for Rapid Prototyping | Conference paper | https://repositories.lib.utexas.edu//bitstreams/be4ff441-f196-41d3-8300-e45bc7df5c9a/download | null | Because of the differences in the rapid prototyping (RP) processes, there is no standard machine path
code for them. For each RP process, based on its characteristics and requirements, the required data
are extracted from the CAD model and converted into proper format for the RP machine. Slicing a
CAD model through int... | null | null | null | null | null | null |
['Kmecko, I.S.', 'Kovacevic, R.', 'Jandric, Z.'] | 2019-09-23T17:29:42Z | 2019-09-23T17:29:42Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75985', 'http://dx.doi.org/10.26153/tsw/3084'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Prototyping | Machine Vision Based Control of Gas Tungsten Arc Welding for Rapid Prototyping 578 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/0750d482-2891-4f3d-9d83-4481d221902e/download | null | A machine vision system, based on CCD camera, is used to control the molten pool size during the gas tungsten arc welding (GTAW) process. The technique is tested by making a metallic part with a complex 3-D network of conformal channels on a hybrid rapid prototyping machine based on welding and milling. The test part d... | This work was financially supported by THECB’s Grants No. 0036133-0005-1997 and 003613- 0022-1999, NSF’s Grants No DMI-9732848 and DMI-9809198, and by the U.S. Department of Education Grant No. P200A80806-98. | null | null | null | null | null |
['Koivunen, V.', 'Bajcsy, R.'] | 2018-05-03T19:43:14Z | 2018-05-03T19:43:14Z | 1993 | Mechanical Engineering | doi:10.15781/T2154F62N | http://hdl.handle.net/2152/65068 | eng | 1993 International Solid Freeform Fabrication Symposium | Open | ['CAD systems', 'CAD model', 'NURBS'] | Machine Vision for Rapid Geometric Modeling | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c74cf0ac-162a-423a-aa7a-b2a4606b0967/download | null | null | null | null | null | null | null | null |
['Arigbabowo, Oluwasola K.', 'Tate, Yash', 'Geerts, Wilhelmus J'] | 2024-03-25T22:26:42Z | 2024-03-25T22:26:42Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124321', 'https://doi.org/10.26153/tsw/50929'] | en_US | 2023 International Solid Freeform Fabrication Symposium | Open | ['magnetic fillers', 'Polyamide 4.6', 'Twin Screw Extrusion', 'additive manufacturing'] | MAGNETIC CHARACTERIZATION OF 3D PRINTED HIGHPERFORMANCE POLYAMIDE MAGNETIC COMPOSITE | Conference paper | https://repositories.lib.utexas.edu//bitstreams/11f6abd5-317c-4dbd-877b-da1df4282107/download | University of Texas at Austin | Polyamide 4.6 is classified as a high-temperature thermoplastic because of its service
temperatures of up to 175°C, bringing it close to high-temperature plastics like PPS or PEEK. Due
to its high-temperature capability and price/performance ratio, Polyamide 4.6 is considered viable
in developing high-performance bonde... | null | null | null | null | null | null |
['Sukhotskiy, V.', 'Karampelas, I.H.', 'Garg, G.', 'Verma, A.', 'Tong, M.', 'Vader, S.', 'Vader, Z.', 'Furlani, E.P.'] | 2021-11-04T15:14:26Z | 2021-11-04T15:14:26Z | 2017 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/89984', 'http://dx.doi.org/10.26153/tsw/16905'] | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['magnetohydrodynamics', 'droplet ejection', 'drop on demand printing', '3D printing', 'additive manufacturing', 'thermo-fluidics', 'molten aluminum'] | Magnetohydrodynamic Drop-on-Demand Liquid Metal 3D Printing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ad6bcde5-c808-4a51-bac1-dde0ea1699e0/download | University of Texas at Austin | We present a novel method for liquid metal drop-on-demand (DOD) additive manufacturing
of three-dimensional (3D) solid metal structures. This method relies on magnetohydrodynamic
(MHD)-based droplet generation. Specifically, a pulsed magnetic field, supplied by an external
coil, induces a Lorentz force density within a... | null | null | null | null | null | null |
['Wang, W. L.', 'Fuh, J. Y. H.', 'Wong, Y. S.', 'Miyazawa, T.'] | 2018-11-14T17:41:15Z | 2018-11-14T17:41:15Z | 1996 | Mechanical Engineering | doi:10.15781/T23R0QD14 | http://hdl.handle.net/2152/70247 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['SLA process', 'rapid prototyping', 'manufacturing processes'] | Make-up Fabrication of Big or Complex Parts Using the SLA Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/cc726201-c6b2-4836-9302-9a6a06b59671/download | null | Rapid prototyping is a highly flexible manufacturing technology which can produce big or
complex parts without any special fixtures and tools. But it is often a costly and time consuming
process to produce big and complex parts. To solve this problem, this paper proposes the makeup
fabrication process. The process cuts... | null | null | null | null | null | null |
['Malyala, Santosh Kumar', 'Gibson, Ian', 'Y, Ravi Kumar', 'Chakravarthy, Chitra'] | 2021-11-09T20:59:28Z | 2021-11-09T20:59:28Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90164', 'http://dx.doi.org/10.26153/tsw/17085'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', 'AM', 'mandibular resection', 'reposition appliance', 'complex surgery'] | Mandibular Repositioning Appliance Following Resection Crossing the Midline- A3D Printed Guide | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e062236e-b20b-4d8e-8215-bed261915ef3/download | University of Texas at Austin | Additive Manufacturing (AM) is one of the latest manufacturing processes which has evolved
dramatically over the past three decades. The benefits of AM have steadily stepped in to almost
all modern industries. The medical and dental industries may have benefitted the most in this
regard. In the medical industry, every ... | null | null | null | null | null | null |
['Trautschold, Olivia', 'Dong, Andy'] | 2021-12-07T17:16:23Z | 2021-12-07T17:16:23Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90725', 'http://dx.doi.org/10.26153/tsw/17644'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['crumple-forming', 'additive manufacturing', 'manufacturability analysis', 'complex network theory', 'eigenvalue decomposition'] | Manufacturability Analysis of Crumple-Formed Geometries through Reduced Order Models | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f445a359-62ba-435a-bdd2-9d5394606379/download | University of Texas at Austin | Crumple-formed structures have irregular, multiscale geometric complexity. Similar to
periodic lattices, crumpled geometries can be tailored to applications requiring a high strength-to-weight ratio. As an alternative to confinement-based crumple forming, additive manufacturing
allows for increased geometric control an... | null | null | null | null | null | null |
['Tedia, Saish', 'Williams, Christopher B.'] | 2021-10-26T17:44:32Z | 2021-10-26T17:44:32Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89536 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['manufacturability', 'voxel-based', 'geometric modeling', 'part geometry', 'additive manufacturing'] | Manufacturability Analysis Tool for Additive Manufacturing Using Voxel-Based Geometric Modeling | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d4d3cd71-4b19-4be8-add0-7f1fada8818f/download | University of Texas at Austin | While Additive Manufacturing (AM) processes provide unparalleled design freedom, they still
impose some constraints on the geometries that can be successfully fabricated. Thus, there exists
a need for predictive analysis of part geometries’ manufacturability. Existing algorithms based on
surface representations require... | null | null | null | null | null | null |
['Josupeit, Stefan', 'Delfs, Patrick', 'Menge, Dennis', 'Schmid, Hans-Joachim'] | 2021-11-01T21:07:27Z | 2021-11-01T21:07:27Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89752 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['manufacturability', 'lattice structures', 'polymer laser sintering'] | Manufacturability and Mechanical Characterization of Laser Sintered Lattice Structures | Conference paper | https://repositories.lib.utexas.edu//bitstreams/05cd0f41-6e54-41f8-bbb8-ed757eadf102/download | University of Texas at Austin | The implementation of lattice structures into additive manufactured parts is an important
method to decrease part weight maintaining a high specific payload. However, the
manufacturability of lattice structures and mechanical properties for polymer laser sintering are
quite unknown yet. To examine the manufacturability... | null | null | null | null | null | null |
['Stephens, Sean', 'Crawford, Richard H.', 'Rogers, William', 'Gitter, Andrew', 'Bosker, Gorden'] | 2019-09-23T17:27:46Z | 2019-09-23T17:27:46Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75984', 'http://dx.doi.org/10.26153/tsw/3083'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Prosthesis | Manufacture of Compliant Prosthesis Sockets using Selective Laser Sintering 565 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/de3d7aa6-0fd1-4ec1-a6ab-b45a54b30c69/download | null | Solid Freeform Fabrication to date has largely been applied in prototype fabrication or fabrication of patterns for conventional manufacturing methods. However, many opportunities exist for using SFF for manufacturing the actual product. In particular, those applications that require or can be enhanced by custom geomet... | The authors acknowledge the support of the Veterans Administration for partial support of this work. | null | null | null | null | null |
['Suryakumar, S.', 'Somashekara, A.'] | 2021-10-12T18:25:56Z | 2021-10-12T18:25:56Z | 2013 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88714', 'http://dx.doi.org/10.26153/tsw/15648'] | eng | 2013 International Solid Freeform Fabrication Symposium | Open | ['weld-deposition based additive manufacturing', 'additive manufacturing', 'twin-wire', 'process parameters', 'mechanical properties', 'material properties'] | Manufacture of Functionally Gradient Materials using Weld-Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/264d0f6a-b4ce-4ef9-8b8f-7be1a00c2bf8/download | University of Texas at Austin | When the inherent inhomogeneity of Additive Manufacturing techniques is carefully
exploited, the anisotropy transforms into the desired distribution of the properties paving the way
for manufacture of Functionally Gradient Materials. The present work focuses on using weld-deposition based Additive Manufacturing techniq... | null | null | null | null | null | null |
['Badrinarayan, B.', 'Barlow, J.W.'] | 2018-10-03T18:28:01Z | 2018-10-03T18:28:01Z | 1994 | Mechanical Engineering | doi:10.15781/T2P844F4Z | http://hdl.handle.net/2152/68672 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['SLS technology', 'CAD', 'rapid prototyping'] | Manufacture Of Injection Molds Using SLS | Conference paper | https://repositories.lib.utexas.edu//bitstreams/28a4a235-8ce6-4c93-af80-cfd62918d6fb/download | null | This paper describes the use of SLS technology for the fabrication of injection mold
cavities. Green shapes were made from metal - copolymer powder mixtures by SLS. The
copolymer was gradually burnt out and the metal was oxidized in an air furnace. The porous
oxidized metal part was subsequently infiltrated with an epo... | null | null | null | null | null | null |
['Dechet, Maximilian A.', 'Lanzl, Lydia', 'Werner, Yannick', 'Drummer, Dietmar', 'Bück, Andreas', 'Peukert, Wolfgang', 'Schmidt, Jochen'] | 2021-11-18T16:30:33Z | 2021-11-18T16:30:33Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90417', 'http://dx.doi.org/10.26153/tsw/17338'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['glass fiber composite particles', 'polyamide 11', 'PA11', 'selective laser sintering'] | Manufacturing and Application of PA11-Glass Fiber Composite Particles for Selective Laser Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3a9d4a4e-c410-4cb1-9c10-3e0b298df22f/download | University of Texas at Austin | Selective laser sintering (SLS), a powder-based additive manufacturing technology, employs micronsized polymer particles, which are selectively fused by a laser. SLS yields excellent part qualities with good
mechanical properties. However, a persistent challenge in this layer-by-layer process is a reduction of
mechanic... | null | null | null | null | null | null |
Sachs, Emanuel | 2019-10-18T17:11:15Z | 2019-10-18T17:11:15Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76266', 'http://dx.doi.org/10.26153/tsw/3355'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | Fabrication | Manufacturing by Solid Freeform Fabrication | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a149ee04-5569-4fe0-acdc-4e9bc9403af1/download | null | The SFF/RP industry has grown steadily with the most significant gains made in the number
of models produced per year – three million in the year 2000. Future growth is most likely to be
in manufacturing applications of SFF where even a single application can double the number of
models/parts produced annually. There a... | null | null | null | null | null | null |
['Kerbrat, O.', 'Mognol, P.', 'Hascoet, J.-Y.'] | 2021-09-23T22:29:50Z | 2021-09-23T22:29:50Z | 9/10/08 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88039', 'http://dx.doi.org/10.26153/tsw/14980'] | eng | 2008 International Solid Freeform Fabrication Symposium | Open | ['subtractive processes', 'additive processes', 'hybrid modular tooling'] | Manufacturing Complexity Evaluation For Additive and Subtractive Processes: Application to Hybrid Modular Tooling | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e7f856b7-75c1-4662-8992-8849d7ca077c/download | null | The aim of this work is to determine how to combine a subtractive process (HSM) and an
additive process (SLS) to realize tools (dies or molds). In fact, the design and manufacturing
of tools may be optimized with hybrid and modular points of view. Tools are not seen as
single pieces but as 3-D puzzles with modules; eac... | null | null | null | null | null | null |
['Beck, James E.', 'Prinz, Fritz B.', 'Siewiorek, Daniel P.', 'Weiss, Lee E.'] | 2018-04-19T18:32:33Z | 2018-04-19T18:32:33Z | 1992 | Mechanical Engineering | doi:10.15781/T23N20X5T | http://hdl.handle.net/2152/64408 | eng | 1992 International Solid Freeform Fabrication Symposium | Open | ['Mechatronics', 'Thermal Spray', 'shape deposition'] | Manufacturing Mechatronics Using Thermal Spray Shape Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fcd14e93-6df5-4214-8aec-6bd9a4c7ea62/download | null | A new technology for manufacturing mechatronics is described. The technique is based on recursive
masking and deposition of thermally sprayed materials. Using these methods, mechanical structures
can be created that embed and interconnect electronic components. This results in highly integrated
mechatronic devices. A s... | null | null | null | null | null | null |
['Williams, Christopher B.', 'Rosen, David W.'] | 2020-03-10T16:23:58Z | 2020-03-10T16:23:58Z | 9/5/07 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80224', 'http://dx.doi.org/10.26153/tsw/7243'] | eng | 2007 International Solid Freeform Fabrication Symposium | Open | Additive Manufacturing | Manufacturing Metallic Parts with Designed Mesostructure via Three-Dimensional Printing of Metal Oxide Powder | Conference paper | https://repositories.lib.utexas.edu//bitstreams/eb783689-9258-4328-91f8-102dc2509844/download | null | Cellular materials, metallic bodies with gaseous voids, are a promising class of materials that offer
high strength accompanied by a relatively low mass. In this paper, the authors investigate the use of ThreeDimensional Printing (3DP) to manufacture metallic cellular materials by selectively printing binder into a
bed... | null | null | null | null | null | null |
['Morvan, Stephane', 'Fadel, Georges', 'Love, James', 'Keicher, Dave'] | 2019-10-18T16:59:04Z | 2019-10-18T16:59:04Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76261', 'http://dx.doi.org/10.26153/tsw/3350'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | LENS Apparatus | Manufacturing of a Heterogeneous Flywheel on a LENS Apparatus | Conference paper | https://repositories.lib.utexas.edu//bitstreams/1d07107e-c7a9-4d2b-a34f-f10d2d0e4c63/download | null | The design of a 1D gradient component satisfying a particular set of constraints is extended to its
manufacturing on a multi-material capable apparatus. The geometry and composition of this flywheel were
designed to meet a bi-objective optimum featuring maximum kinetic energy storage and minimal maximum
von-Mises stres... | null | null | null | null | null | null |
['Hascoet, J.Y.', 'Muller, P.', 'Mognol, P.'] | 2021-10-05T14:26:55Z | 2021-10-05T14:26:55Z | 8/17/11 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88378', 'http://dx.doi.org/10.26153/tsw/15317'] | eng | 2011 International Solid Freeform Fabrication Symposium | Open | ['functionally graded materials', 'morphologically complex parts', 'bi-materials gradients', 'additive manufacturing'] | Manufacturing of Complex Parts with Continuous Functionally Graded Materials (FGM) | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3db9799c-fa1e-4081-9a67-107390b7b5a4/download | University of Texas at Austin | One of major evolutions of the additive manufacturing is the ability to produce parts with
functionally graded materials (FGM). However, manufacturing of these parts is limited to
discrete or nearly continuous FGM on samples. To achieve this, it is necessary to have a global
control of processes and to develop methodol... | null | null | null | null | null | null |
['Shimek, Moss', 'Patwardhan, Nachiket', 'Wood, Kristin L.', 'Beaman, Joseph', 'Crawford, Richard'] | 2019-10-18T15:23:32Z | 2019-10-18T15:23:32Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76237', 'http://dx.doi.org/10.26153/tsw/3326'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | Instrumented | Manufacturing of Instrumented Prototypes | Conference paper | https://repositories.lib.utexas.edu//bitstreams/15e2a308-2bf5-41f8-85c0-e51c7b2a2174/download | null | The research for the Cybernetic Physical project at UT Austin has the goal of
producing instrumented prototypes, using selective laser sintering (SLS) that can be used
in concert with similarity methods to update virtual models. The SLS process builds
prototypes sintering powder in a 2-D cross-section, layer by layer, ... | null | null | null | null | null | null |
['Dechet, Maximilian A.', 'Lanzl, Lydia', 'Wilden, Alisa', 'Sattes, Maria-Melanie', 'Drummer, Dietmar', 'Peukert, Wolfgang', 'Schmidt, Jochen'] | 2021-11-18T16:33:11Z | 2021-11-18T16:33:11Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90418', 'http://dx.doi.org/10.26153/tsw/17339'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['nanoparticle-filled composite particles', 'polyamide 11', 'PA11', 'selective laser sintering'] | Manufacturing of Nanoparticle-Filled PA11 Composite Particles for Selective Laser Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/714236bb-21ea-4f24-95d7-7c7deb6e8e11/download | University of Texas at Austin | Selective laser sintering (SLS) is an Additive Manufacturing (AM) process that yields excellent part
qualities with good mechanical properties. The SLS process employs micron-sized polymer particles, which are
selectively fused by a laser. While there seem to be hardly any boundaries regarding design, there are quite
s... | null | null | null | null | null | null |
['Ruvalcaba, Bryan E.', 'Arrieta, Edel', 'Escarcega, Andres H.', 'Medina, Francisco', 'Wicker, Ryan B.'] | 2021-11-30T20:04:05Z | 2021-11-30T20:04:05Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90530', 'http://dx.doi.org/10.26153/tsw/17449'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['selective laser melting', 'manufacturing process', 'parameter development', 'water-atomized zinc powder'] | Manufacturing Process and Parameters Development for Water-atomized Zinc Powder for Selective Laser Melting Fabrication | Conference paper | https://repositories.lib.utexas.edu//bitstreams/bafaca19-44c1-4376-99eb-022738b74614/download | University of Texas at Austin | Biodegradability of metals is a desirable characteristic for medical implants. Metals like
Fe, Mg, Zn and their alloys are usually preferred for this application, as their degradation rate has
been shown to work on medical implants. The fast degradation rate of Mg may early
compromise its structural performance for the... | null | null | null | null | null | null |
['Lambert, Philip', 'Chartrain, Nicholas', 'Schultz, Alison', 'Cooke, Shelley', 'Long, Timothy', 'Whittington, Abby', 'Williams, Christopher'] | 2021-10-18T20:49:00Z | 2021-10-18T20:49:00Z | 2014 | Mechanical Engineering | null | https://hdl.handle.net/2152/89241 | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['Mask Projection Microstereolithograhy', 'biocompatible polymers', 'biocompatibility'] | Mask Projection Microstereolithography of Novel Biocompatible Polymers | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5506e78f-519a-42e2-8937-92353ead999c/download | University of Texas at Austin | Mask Projection Microstereolithography (MPμSL) selectively cures entire layers of
photopolymer to create three-dimensional parts with features on the micron scale. The resolution
and scale of MPμSL are ideal for fabricating tissue engineering scaffolds with designed
mesostructure. While MPμSL have excellent resolution,... | null | null | null | null | null | null |
['Pallari, J. H. P.', 'Dalgarno, K. W.', 'Woodburn, J.'] | 2020-02-27T20:39:32Z | 2020-02-27T20:39:32Z | 2006 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80103', 'http://dx.doi.org/10.26153/tsw/7124'] | eng | 2006 International Solid Freeform Fabrication Symposium | Open | Rheumatoid arthritis | Mass Customization of Foot Orthosis for Rheumatoid Arthritis | Conference paper | https://repositories.lib.utexas.edu//bitstreams/2dac7d96-b85a-4530-b9be-e1881b8b99e8/download | null | Rheumatoid arthritis (RA) is an inflammatory disease, which can cause pain, stiffness, and
swelling in the joints of hands and feet. The foot is a major site for RA involvement and a
major source of disability resulting from this disease. This paper introduces research which
aims to create a mass customisation process ... | null | null | null | null | null | null |
['Ye, Hang', 'Zhou, Chi', 'Xu, Wenyao'] | 2021-10-26T17:53:21Z | 2021-10-26T17:53:21Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89539 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['mass customization', 'additive manufacturing', 'topology', 'slicing', 'CLIP'] | Mass Customization: Reuse of Topology Information to Accelerate Slicing Process for Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/7e4256f4-aeef-4bbf-8795-7e1dcf5b1b50/download | University of Texas at Austin | Additive manufacturing (AM) can build objects with complex features with little extra
effort, opening up potentials to realize mass customization. Continuous Liquid Interface
Production (CLIP) prints object in a continuous fashion, leading to extremely high productivity
and consequently enabling mass customization. CLI... | null | null | null | null | null | null |
['Delfs, P.', 'Li, Z.', 'Schmid, H.-J.'] | 2021-10-20T20:30:07Z | 2021-10-20T20:30:07Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89355 | eng | 2015 International Solid Freeform Fabrication Symposium | Open | ['selective laser sintering', 'mass finishing', 'disc finishing'] | Mass Finishing of Laser Sintered Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/cf5566ee-2122-4282-8378-b1692567b564/download | University of Texas at Austin | Selective laser sintered (SLS) part surfaces are quite rough textured by the
layered structure and adherence of incomplete molten powder particles. Different
post-treatments can help to smooth these surfaces. In this work we investigated
the mass finishing method with a disc finishing machine. The aim was to quantify
t... | null | null | null | null | null | null |
['Chartoff, Richard P.', 'Flach, Lawrance', 'Weissman, Peter'] | 2018-05-03T19:26:47Z | 2018-05-03T19:26:47Z | 1993 | Mechanical Engineering | doi:10.15781/T2J679D77 | http://hdl.handle.net/2152/65064 | eng | 1993 International Solid Freeform Fabrication Symposium | Open | ['SLA', 'rapid prototyping', 'stereolithography'] | Material and Process Parameters that Affect Accuracy in Stereolithography | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4f26f401-e99d-4e70-903a-f9bd1f6124fe/download | null | Experimental real time linear shrinkage rate measurements simulating stereolithography
are used in an analysis of shrinkage during line drawing in stereolithography. While the amount of
shrinkage depends on the polymerization kinetics, shrinkage kinetics and overall degree of cure, it
also depends on the length of time... | null | null | null | null | null | null |
['Dobson, Sean', 'Wu, Yan', 'Yang, Li'] | 2021-11-09T18:39:54Z | 2021-11-09T18:39:54Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90113', 'http://dx.doi.org/10.26153/tsw/17034'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['thin wall structures', 'lightweight structures', 'material characteristics', 'Ti-6Al-4V', 'EOS M270', 'laser melting powder bed fusion', 'LM-PBF', 'additive manufacturing'] | Material Characterization for Lightweight Thin Wall Structures Using Laser Powder Bed Fusion Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d25a63f6-7047-4887-844e-a3e541f5d53e/download | null | In this study the geometry-process-material characteristics of the Ti6Al4V thin wall features
fabricated by the EOS M270 laser melting powder bed fusion (LM-PBF) additive manufacturing
(AM) was investigated. Samples with varying wall thickness, orientation, scanning speeds and
laser power were fabricated and analyzed. ... | null | null | null | null | null | null |
['Nodehi, Mehrab', 'Asiabanpour, Bahram', 'Omer, Liam', 'Ozbakkaloglu, Togay'] | 2021-12-07T18:24:10Z | 2021-12-07T18:24:10Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90748', 'http://dx.doi.org/10.26153/tsw/17667'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', '3D printing cementitious materials', '3D concrete printing'] | Material Characterization of Diversity Aggregated Cementitious Materials Produced with a Modular Lightweight Additive Manufacturing Extrusion System | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c46be270-e943-4d38-b6b0-19ab0ec52f18/download | University of Texas at Austin | Applications of additive manufacturing in the construction industry started three decades ago with the first patent and prototype of the contour crafting process. Since then, its obvious benefits in reducing labor cost, construction waste while improving efficiency and flexibility have led to the development of several... | null | null | null | null | null | null |
['Amon, Christina', 'Beuth, Jack', 'Kirchner, Helmut', 'Merz, Robert', 'Prinz, Fritz', 'Schmaltz, Kevin', 'Weiss, Lee'] | 2018-05-03T16:20:53Z | 2018-05-03T16:20:53Z | 1993 | Mechanical Engineering | doi:10.15781/T2P26QM6W | http://hdl.handle.net/2152/65032 | eng | 1993 International Solid Freeform Fabrication Symposium | Open | ['layered manufacturing', 'sintering', 'melting', 'thermal modeling', 'residual stress', 'multi material', 'structures', 'stress cracking'] | Material Issues in Layered Forming | Conference paper | https://repositories.lib.utexas.edu//bitstreams/047d947b-98c6-4729-9a86-8996a5afcca4/download | null | A brief overview of key issues in layered thermal processing is given. Incremental sintering
and layered fusion ofpowder and molten droplets are discussed. The criteria for remelting the solid
substrate are derivedfrom a one dimensional heat transfer model. Temperature gradients which
occur during solidification and su... | null | null | null | null | null | null |
['Boivie, K.', 'Karlsen, R.', 'Van der Eijk, C.'] | 2020-02-28T15:07:59Z | 2020-02-28T15:07:59Z | 2006 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80109', 'http://dx.doi.org/10.26153/tsw/7130'] | eng | 2006 International Solid Freeform Fabrication Symposium | Open | metal printing process | Material Issues of the Metal Printing Process, MPP | Conference paper | https://repositories.lib.utexas.edu//bitstreams/214a2d4c-d87b-4409-a13c-91b058767bc3/download | null | The metal printing process, MPP; is a novel Rapid Manufacturing process under development
at SINTEF and NTNU in Trondheim, Norway. The process, which aims at the manufacturing
of end-use products for demanding applications in metallic and CerMet materials, consists of
two separate parts; The layer fabrication, based on... | null | null | null | null | null | null |
Lipton, Jeffrey I. | 2024-03-27T15:48:34Z | 2024-03-27T15:48:34Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124490', 'https://doi.org/10.26153/tsw/51098'] | en | 2023 International Solid Freeform Fabrication Symposium | Open | ['material jetting', 'suspension system', 'additive manufacturing'] | Material Jetting of Suspension System Components. | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e93401fe-b03a-4b49-93cf-511b19742ce8/download | University of Texas at Austin | Material Jetting has demonstrated great promise in being able to produce complex
functionalities using multi-material printing. Despite this potential material jetting has struggled
to find applications in direct part production. Here we show how material jetting can be used to
produce viscoelastic energy absorbers for... | null | null | null | null | null | null |
['Sekmen, K.', 'Rehbein, T.', 'Johlitz, M.', 'Lion, A.', 'Constantinescu, A.'] | 2023-03-29T16:20:25Z | 2023-03-29T16:20:25Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117677', 'http://dx.doi.org/10.26153/tsw/44556'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | ['Additive manufacturing', 'UV curing', 'photopolymer', 'reaction kinetics', 'viscoelastic modelling'] | Material Modelling of the Photopolymers for Additive Manufacturing Processes | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8103589b-ef51-4986-aca5-aa5579c2ae11/download | null | Ultraviolet (UV) curing of polymers is a key phenomenon for several additive
manufacturing technologies. This contribution presents a model relating the process parameters of
UV light intensity and temperature to the thermal and mechanical properties of the polymer and
the experimental results used to calibrate the ... | null | null | null | null | null | null |
['Guo, C.', 'Ge, W.J.', 'Lin, F.'] | 2021-10-18T21:39:13Z | 2021-10-18T21:39:13Z | 2014 | Mechanical Engineering | null | https://hdl.handle.net/2152/89256 | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['Electron Beam Selective Melting', 'material molten time', 'material deposition'] | Material Molten Time and its Effect on Material Deposition during Electron Beam Selective Melting | Conference paper | https://repositories.lib.utexas.edu//bitstreams/97239d58-f96a-4a58-b7ef-5677d66f45dd/download | University of Texas at Austin | Electron Beam Selective Melting (EBSM) is an additive manufacturing technology
that directly fabricates parts from metal powders in a layer-by-layer fashion. The material
molten time, which equals the total time that material keeps molten during scanning, is
selected as an indicator for evaluating the effects of proces... | null | null | null | null | null | null |
['Fan, K.M.', 'Cheung, W.L.', 'Gibson, L.'] | 2019-10-09T16:29:46Z | 2019-10-09T16:29:46Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76158', 'http://dx.doi.org/10.26153/tsw/3247'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | Trueform | Material Movement and Fusion Behavior of TrueForm and TrueForm/SiO2 during Selective Laser Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c0d20892-823c-4460-8e49-78aee023a779/download | null | Different material systems, TrueForm and TrueForm/SiO2 composites, were sintered under
similar conditions. A microscope equipped with a CCD camera was utilized to examine the
material movement near the laser beam. Powder movement of the blends was found to start at
different ranges ahead of the line of scan. For TrueFo... | null | null | null | null | null | null |
['Raju, Nandhini', 'Warren, Peter', 'Subramanian, Ramesh', 'Ghosh, Ranajay', 'Raghavan, Seetha', 'Fernandez, Erik', 'Kapat, Jayanta'] | 2021-12-06T22:12:19Z | 2021-12-06T22:12:19Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90693', 'http://dx.doi.org/10.26153/tsw/17612'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['17-4 PH stainless steel', 'material properties', 'atomic diffusion additive manufacturing', 'ADAM'] | Material Properties of 17-4PH Stainless Steel Fabricated by Atomic Diffusion Additive Manufacturing (ADAM) | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4d15f0d0-baeb-4b10-b1c9-b0ea47a808ce/download | University of Texas at Austin | The objective of this paper is to investigate the material properties of 17-4PH stainless steel printed by the
Atomic Diffusion Additive manufacturing technique. Samples with film cooling holes in different orientations
were manufactured in a Markforged Metal-X machine. The presence of the holes in these samples helps ... | null | null | null | null | null | null |
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