author
stringlengths
4
285
date.accessioned
stringlengths
20
20
date.available
stringlengths
20
20
date.issued
stringclasses
75 values
description.department
stringclasses
3 values
identifier
stringclasses
387 values
identifier.uri
stringlengths
32
78
language.iso
stringclasses
8 values
relation.ispartof
stringclasses
33 values
rights.restriction
stringclasses
2 values
subject
stringlengths
2
254
title
stringlengths
7
239
type
stringclasses
3 values
pdf
stringlengths
93
93
publisher
stringclasses
1 value
abstract
stringlengths
109
3.61k
description.sponsorship
stringclasses
100 values
description
stringclasses
16 values
title.alternative
stringclasses
1 value
contributor.utaustinauthor
stringclasses
1 value
language
stringclasses
1 value
identifier.url
stringclasses
1 value
['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