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['Maines, Erin', 'Bell, Nelson', 'Evans, Lindsey', 'Roach, Matthew', 'Tsui, Lok-kum', 'Lavin, Judith', 'Keicher, David']
2021-11-10T21:11:30Z
2021-11-10T21:11:30Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90176', 'http://dx.doi.org/10.26153/tsw/17097']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['low viscosity resin', 'ceramic slurries', 'material properties', 'stereolithography', 'additive manufacturing']
Material Properties of Ceramic Slurries for Applications in Additive Manufacturing Using Stereolithography
Conference paper
https://repositories.lib.utexas.edu//bitstreams/18c401e4-9f99-40ec-bfa5-2d742f4e3383/download
University of Texas at Austin
Stereolithography (SL) is a process that uses photosensitive polymer solutions to create 3D parts in a layer by layer approach. Sandia National Labs is interested in using SL for the printing of ceramic loaded resins, namely alumina, that we are formulating here at the labs. One of the most important aspects for SL pri...
null
null
null
null
null
null
['Josupeit, Stefan', 'Lohn, Johannes', 'Hermann, Eduard', 'Gessler, Monika', 'Tenbrink, Stephan', 'Schmid, Hans-Joachim']
2021-10-20T20:44:57Z
2021-10-20T20:44:57Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89357
eng
2015 International Solid Freeform Fabrication Symposium
Open
['laser sintering', 'build cycles', 'refresh cycles', 'refresh rates', 'polyamide 12']
Material Properties of Laser Sintered Polyamide 12 as Function of Build Cycles Using Low Refresh Rates
Conference paper
https://repositories.lib.utexas.edu//bitstreams/74a9b460-ce44-41da-9503-e5dcfd688ff5/download
University of Texas at Austin
Due to long process times at high temperatures, unmolten polyamide 12 material ages during the manufacturing process. Hence, it needs to be refreshed with new material for further build cycles. In application, refresh rates of about 50 % are commonly used. In this work, the recycling optimized material PA 2221 from EOS...
null
null
null
null
null
null
['Kaweesa, Dorcas V.', 'Meisel, Nicholas A.']
2021-11-11T15:40:50Z
2021-11-11T15:40:50Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90224', 'http://dx.doi.org/10.26153/tsw/17145']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['digital composite structures', 'voxel size', 'custom design', 'material property', 'functionally graded materials', 'FGMs', 'additive manufacturing']
Material Property Changes in Custom-Designed Digital Composite Structures Due to Voxel Size
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cfc5bf92-265a-4654-b476-f9342718924a/download
University of Texas at Austin
Advances in additive manufacturing enable fabrication of complex structures using functionally graded materials (FGMs) at a voxel level. Prior to developing voxel-based FGM designs using compatible dithering approaches, it is essential to first understand the basic principles of voxel-based digital composite designs. W...
null
null
null
null
null
null
['Dinda, Shantanab', 'Banerjee, Dishary', 'Shaffer, Derek', 'Ozbolat, Ibrahim T.', 'Simpson, Timothy W.']
2023-02-09T19:01:35Z
2023-02-09T19:01:35Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117442', 'http://dx.doi.org/10.26153/tsw/44323']
eng
2022 International Solid Freeform Fabrication Symposium
Open
metal implants
Material Selection & Design for Lattice-Based Biodegradable Metal Implants for Bone Regeneration in Load-Bearing Bone Defects
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a62d2168-e877-4706-9a0f-d0409cc5ff01/download
null
Human bone is a dynamic tissue and has a natural ability to repair small fractures quickly; however, critical fractures below the waist require external mechanical aids to help bear loading while healing. These techniques are effective but tend to cause a lack of mobility and decrease quality of life. New materials ...
null
null
null
null
null
null
['Yuan, Mengqi', 'Liu, Yu', 'Qian, Xinming']
2021-11-08T22:54:56Z
2021-11-08T22:54:56Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90066', 'http://dx.doi.org/10.26153/tsw/16987']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['stab resistant', 'body armor', 'carbon fiber', 'polyamide']
Material Selection on Laser Sintered Stab Resistance Body Armor
Conference paper
https://repositories.lib.utexas.edu//bitstreams/466684ea-f92c-4dab-b626-acfa07926ffd/download
University of Texas at Austin
Stab resistant body armor (SRBA) is essential defensive equipment to protect the human body from injury due to stabbing. The conventional SRBAs are heavy and inflexible. Therefore a new type of SRBA has been recently developed using Laser Sintering (LS), which has resulted in a substantial improvement to SRBA in terms ...
null
null
null
null
null
null
['Shanjani, Yaser', 'Toyserkani, Ehsan']
2021-09-23T21:49:29Z
2021-09-23T21:49:29Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/88030', 'http://dx.doi.org/10.26153/tsw/14971']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['solid freeform fabrication', 'counter-rotating roller', 'powder-based solids', 'mechanical engineering']
Material Spreading and Compaction in Power-Based Solid Freeform Fabrication Methods: Mathematical Modeling
Conference paper
https://repositories.lib.utexas.edu//bitstreams/bee2faf5-a7d5-460c-a6d7-5313374450c9/download
null
In this study, the spreading and compaction of powder by a counter-rotating roller, in the solid freeform fabrication (SFF) process, is modeled and characterized. The effect of layer thickness, roller diameter, amount of loose powder, and its initial density on the powder bed’s relative density and roller compaction ...
null
null
null
null
null
null
['Kietzman, J. W.', 'Prinz, F. B.']
2019-02-26T20:22:13Z
2019-02-26T20:22:13Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73497', 'http://dx.doi.org/10.26153/tsw/647']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['SDM', 'support material']
Material Strength in Polymer Shape Deposition Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5c03553e-25e3-45a5-904e-43b3cbb95d62/download
null
Shape Deposition Manufacturing (SDM) is a layered manufacturing process involving an iterative combination of material addition and material removal. Polymer SDM processes have used castable thermoset resins to build a variety of parts. The strength of such parts is determined by the bulk material properties of the par...
null
null
null
null
null
null
['Damas, Sara M.', 'Turner, Cameron J.']
2021-12-01T23:41:18Z
2021-12-01T23:41:18Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90660', 'http://dx.doi.org/10.26153/tsw/17579']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['conductive pathway', 'material testing', 'ABS', 'nanoparticles', '3D printing']
The Material Testing of Nanoparticle Doped 3D Printed ABS to Decrease Resistance and Create a Conductive Pathway
Conference paper
https://repositories.lib.utexas.edu//bitstreams/017d8e46-6e96-4203-9a7a-4170f5ba88a7/download
University of Texas at Austin
The technology to 3D print by low-cost fabrication has been around since the 1970’s. Thanks to one of its founding fathers, Scott Crump, as of 1989, it is possible to 3D print in low-cost fabricated layers to obtain a solid component. The demand for 3D printed products has only gone up since. Nickel, copper, carbon, an...
null
null
null
null
null
null
['Song, Ruoyu', 'Telenko, Cassandra']
2021-10-28T15:48:31Z
2021-10-28T15:48:31Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89668
eng
2016 International Solid Freeform Fabrication Symposium
Open
['material waste', 'commercial FDM printers', 'fused deposition modeling', 'ABS material']
Material Waste of Commercial FDM Printers Under Realistic Conditions
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6c870239-3230-44b9-b1f3-3ea9e471329e/download
University of Texas at Austin
Fused deposition modeling (FDM) is a prominent technology for additive manufacturing. Additive manufacturing is thought to minimize material waste, but the actual material waste could be larger than expected due to human or printer error. In FDM, the quantity of support material is influenced by the part orientation an...
null
null
null
null
null
null
['Josupeit, Stefan', 'Rüsenberg, Stefan', 'Schmid, Hans-Joachim']
2021-10-07T15:18:52Z
2021-10-07T15:18:52Z
8/16/13
Mechanical Engineering
null
['https://hdl.handle.net/2152/88477', 'http://dx.doi.org/10.26153/tsw/15412']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['polymer laser sintering', 'nylon 12', 'part quality', 'aircraft industry']
A Material-Based Quality Concept for Polymer Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9cd7d1ea-d3d9-4796-ad7d-7c9f44ea3b8c/download
University of Texas at Austin
In this work, the quality of laser sintered parts is investigated along a defined process chain for a nylon 12 material (PA 2200) on an EOSINT P395 laser sintering system. Important influencing factors are figured out. Rheological powder characterization methods are investigated as well as mechanical, physical and othe...
null
null
null
null
null
null
Kimble, Luke L.
2018-04-19T18:15:45Z
2018-04-19T18:15:45Z
1992
Mechanical Engineering
doi:10.15781/T20V8B11S
http://hdl.handle.net/2152/64401
eng
1992 International Solid Freeform Fabrication Symposium
Open
['rapid prototyping', 'SLS', 'Selective Laser Sintering']
The Materials Advantage of the SLS Selective Laser Sintering Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8bb792f1-8875-4313-8a8c-6245a885fa46/download
null
The rapid prototyping market continues to progress in tenns of processes and materials used for the creation of conceptual and functional parts and prototype tooling. As this market continues to mature, the market leaders win be able to offer rapid prototyping processes and materials that provide parts which are accura...
null
null
null
null
null
null
['Satapathy, S.', 'Hsieh, K.', 'Persad, C.']
2020-02-12T15:49:19Z
2020-02-12T15:49:19Z
2004
Mechanical Engineering
null
['https://hdl.handle.net/2152/79943', 'http://dx.doi.org/10.26153/tsw/6969']
eng
2004 International Solid Freeform Fabrication Symposium
Open
Electrical Conductor
Materials Design - Towards a Functionally Graded Electrical Conductor
Conference paper
https://repositories.lib.utexas.edu//bitstreams/20df546b-31e6-45dd-9683-1a504bf398c5/download
null
In this study, we discuss functionally graded (FG) materials as pulsed electrical conductors. These conductors can be designed to be more efficient and longer lasting by applying numerical modeling tools. One focus is on limiting the thermal fatigue damage in conductors caused by very high temperatures that develop dur...
null
null
null
null
null
null
['Barlow, J. W', 'Lee, G.', 'Aufdemorte, T. B.', 'Fox, W. C', 'Swain, L.D.', 'Vail, N.K']
2019-02-27T17:32:04Z
2019-02-27T17:32:04Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73506', 'http://dx.doi.org/10.26153/tsw/656']
null
1998 International Solid Freeform Fabrication Symposium
Open
['selective laser sintering', 'porous']
Materials for Biomedical Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0f6e974e-8e5e-44e6-8d03-cd43f5f6aba6/download
null
This paper discusses two ceramic material systems for selective laser sintering (SLS) that are being developed for biomedical applications for use in repair of bone defects. SLS is the preferred method of fabricating ceramic implants that exhibit well defined porous microstructures. Implants fabricated in this. manner ...
null
null
null
null
null
null
['Cawley, J. D.', 'Liu, Z.', 'Mou, J.', 'Heuer, A. H.']
2019-02-26T17:23:11Z
2019-02-26T17:23:11Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73489', 'http://dx.doi.org/10.26153/tsw/639']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['densification', 'powder compact']
Materials Issues in Laminated Object Manufacturing of Powder-Based Systems
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e64b4115-186f-4da2-a32e-9e9b87d14313/download
null
Laminated object manufacturing offine ceramic and powder metallurgy components can be carried out using either the cut-then-stack or stack-then-cut motif. With either approach, it is necessary to effect laser cutting to define layer geometry and lamination to fuse the stack into a seamless monolith. The relationship be...
null
null
null
null
null
null
['Schorzmann, J.', 'Gerstl, H.', 'Tan, Z.', 'Sprenger, L.', 'Lu, H.-H.', 'Taumann, S.', 'Wimmer, M.', 'Boccaccini, A.R.', 'Salehi-Muller, S.', 'Dopper, F.']
2024-03-27T15:51:08Z
2024-03-27T15:51:08Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124491', 'https://doi.org/10.26153/tsw/51099']
en
2023 International Solid Freeform Fabrication Symposium
Open
['bioreactor development', 'material screening methodology', 'additive manufacturing', 'material extrusion with thermal reaction bonding', 'biofabrication', '3D-bioprinting']
MATERIALS SCREENING METHODOLOGY FOR ADDITIVE MANUFACTURING IN BIOREACTOR TECHNOLOGY
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0107d2d1-8240-4bb2-bfef-d75f0d412aa6/download
University of Texas at Austin
Biofabrication is used to fabricate complex tissues/organs inspired by their native structures using additive manufacturing (AM) techniques and bio-inks (biopolymers enriched with living cells). Electroactive cells such as skeletal muscle function via electrical signals and therefore, their optimum in vitro functionali...
null
null
null
null
null
null
['Lin, Feng', 'Sun, Wei', 'Van, Yongnian']
2019-03-12T15:49:33Z
2019-03-12T15:49:33Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73591', 'http://dx.doi.org/10.26153/tsw/733']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['Layered Manufacturing', 'Rapid Prototyping']
A Mathematical Description of Layered Manufacturing Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/46356ecf-0481-4cbd-83dd-2563aa6b97f7/download
null
This study is attempted to use a mathematical definition to describe the principles of Layer Manufacturing Processing. The concept of model decoll1Position (layered subtraction for 3D model slicing) and material accumulation (layered addition for <prot()typjng fabrication) and the associated sequence function and seql....
null
null
null
null
null
null
Dwivedi, Rajeev
2023-01-26T14:54:32Z
2023-01-26T14:54:32Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117312', 'http://dx.doi.org/10.26153/tsw/44193']
eng
2022 International Solid Freeform Fabrication Symposium
Open
maxel
maxel framework for representing and process planning of Functionally Graded Materials.
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5655e96d-b341-4537-b447-7daa5fe416a3/download
null
Functionally Graded Materials (FGM) are characterized by variation in material composition or density per the required functionality. Inherent ability of various Solid Freeform Fabrication techniques to access bulk volume of part makes it a amenable to fabricating range of functionally graded materials. However, most...
null
null
null
null
null
null
['Rodriguez, J. F.', 'Thomas, J.P.', 'Renaud, J. E.']
2019-03-13T16:36:43Z
2019-03-13T16:36:43Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73644', 'http://dx.doi.org/10.26153/tsw/786']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['Fused-Deposition', 'Solid Freeform Fabrication']
Maximizing the Strength of Fused-Deposition ABS Plastic Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b6d19e26-edf2-420e-84b1-884f969ccf8a/download
null
Fused-Deposition (FD) creates parts using robotic extrusion of set.D.i-liquid .polymer fiber, which molecularly bonds with neighboring fibers via thermal-dlffuslo.n bonding. T~e strength ofthe. part depends on the bulk polymer strength, themesostructure ~flber layout, vOid geom~try, extent of fiber bonding), and thefib...
null
null
null
null
null
null
['Robinson, C. J.', 'Zhang, C.', 'Janaki Ram, G. D.', 'Siggard, E. J.', 'Stucker, B.', 'Li, L.']
2020-03-02T15:40:39Z
2020-03-02T15:40:39Z
9/14/06
Mechanical Engineering
null
['https://hdl.handle.net/2152/80136', 'http://dx.doi.org/10.26153/tsw/7157']
eng
2006 International Solid Freeform Fabrication Symposium
Open
Ultrasonic Consolidation
Maximum Height to Width Ratio of Freestanding Structures Built Using Ultrasonic Consolidation
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cbf462a5-8a87-47e5-b7da-a9a6c29ef174/download
null
Ultrasonic consolidation (UC) is a process whereby metal foils can be metallurgically bonded at or near room temperature. The UC process works by inducing high-speed differential motion (~20kHz) between a newly deposited layer and a substrate (which consists of a base plate and any previously deposited layers of materi...
null
null
null
null
null
null
['Young, Y.Y.', 'Yu, K.M.', 'Kwong, C.K.']
2019-10-18T15:17:46Z
2019-10-18T15:17:46Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76235', 'http://dx.doi.org/10.26153/tsw/3324']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Jewel Rings
Maximum Visibility Building Direction for Layered Manufacturing of Jewel Rings
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e52cab88-49fa-4c9e-a1e6-8272b081b690/download
null
Rapid prototyping is used in jewelry production since the introduction of Stereolithography Apparatus into the market. However, the building orientation is mainly decided by the experience of the operator rather than by any systematic analysis. A theory is therefore needed to analyze the best orientation of jewelry in ...
The work described in this paper was supported by a grant from the Hong Kong Polytechnic University (Project No.: G-V617).
null
null
null
null
null
['Gupta, Guarav', 'Tan, JunJay', 'Seepersad, Carolyn Conner']
2020-03-02T14:33:41Z
2020-03-02T14:33:41Z
2006
Mechanical Engineering
null
['https://hdl.handle.net/2152/80126', 'http://dx.doi.org/10.26153/tsw/7147']
eng
2006 International Solid Freeform Fabrication Symposium
Open
cellular materials
ME Design and Freeform Fabrication of Compliant Cellular Materials with Graded Stiffness
Conference paper
https://repositories.lib.utexas.edu//bitstreams/68ab06e4-9007-441b-ac86-a537f0446519/download
null
Typically, cellular materials are designed for structural applications to provide stiffness or absorb impact via permanent plastic deformation. Alternatively, it is possible to design compliant cellular materials that absorb energy via recoverable elastic deformation, allowing the material to spring back to its origina...
null
null
null
null
null
null
['Kulkarni, N.P.', 'Sparks, T.E.', 'Tandra, G.', 'Liou, F.W.']
2021-10-01T00:01:15Z
2021-10-01T00:01:15Z
2010
Mechanical Engineering
null
['https://hdl.handle.net/2152/88301', 'http://dx.doi.org/10.26153/tsw/15242']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['fuel cell', 'Membrane Electrode Assembly', 'polymer-electrode membrane', 'selective deposition', 'catalyst', 'cost reduction']
MEA Manufacturing Using an Additive Manufacturing Process to Deposit a Catalyst Patter in an MEA and its Impact on Cost Reduction
Conference paper
https://repositories.lib.utexas.edu//bitstreams/337fbed3-92b0-4970-842d-4c2069a18d3f/download
University of Texas at Austin
The manufacturing of a fuel cell Membrane Electrode Assembly (MEA) is a significant cost driver in polymer-electrolyte membrane (PEM) fuel cell technologies, primarily due to the inclusion of expensive materials in the catalyst layer. The selective deposition of a catalyst on the MEA of a fuel cell can drastically redu...
null
null
null
null
null
null
['Chalancon, Antoine', 'Bourell, David']
2021-11-01T21:47:14Z
2021-11-01T21:47:14Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89767
eng
2016 International Solid Freeform Fabrication Symposium
Open
['energy density', 'polyamide 12', 'laser sintering']
Measured Energy Densities for Polyamide 12 and Comparison of Values Calculated for Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9edc7ece-f767-457b-a8cc-25c1c4a2da87/download
University of Texas at Austin
Energy density is a key factor in the Laser Sintering (LS) process, and impacts the properties of the built parts. Processing parameters have an important effect on Laser Sintering. This paper focuses on the evaluation of various energy density equations. Experiments were carried out by varying processing parameters, n...
null
null
null
null
null
null
['Dvorak, Jake', 'Ajinjeru, Christine', 'Smith, Tyler', 'Kim, Seokpum', 'Hershey, Christopher', 'Lindahl, John', 'Kunc, Vlastimil', 'Duty, Chad']
2021-11-18T17:22:15Z
2021-11-18T17:22:15Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90435', 'http://dx.doi.org/10.26153/tsw/17356']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['pressure profiles', 'pressure distributions', 'single screw extruder', 'big area additive manufacturing', 'BAAM']
Measurement and Analysis of Pressure Profile Within Big Area Additive Manufacturing Single Screw Extruder
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e09c94ca-4713-4a64-833a-d434c0115c39/download
University of Texas at Austin
Pressure distributions within a single screw extruder are dependent on several factors, namely, processing parameters and flow geometry. The Big Area Additive Manufacturing (BAAM) system involves a complex flow geometry with multiple flow zones following the screw extruder. This study utilized experimental data and a o...
null
null
null
null
null
null
['Klingbeil, N.W.', 'Beuth, J.L.', 'Chin, R.K.', 'Amon, C.H.']
2019-02-22T20:05:09Z
2019-02-22T20:05:09Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73471', 'http://dx.doi.org/10.26153/tsw/621']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['SFF', 'SDM']
Measurement and Modeling of Residual Stress-Induced Warping in Direct Metal Deposition Processes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c0cbd1ff-4247-4d8d-98c1-fb2becbe36dc/download
null
Tolerance loss due to residual stress-induced warping is a major concern in solid freeform fabrication (SFF) processes. An understanding of how residual stresses develop and how they lead to tolerance loss is a key issue in advancing these processes. In this paper, results are presented from warping experiments on plat...
null
null
null
null
null
null
['Sumin Sih, Samuel', 'Barlow, Joe W.']
2018-10-03T16:50:51Z
2018-10-03T16:50:51Z
1994
Mechanical Engineering
doi:10.15781/T2KH0FJ02
http://hdl.handle.net/2152/68665
eng
1994 International Solid Freeform Fabrication Symposium
Open
['selective laser sintering', 'hydroxyapatite powder', 'thermal conductivity of power beds']
Measurement and Prediction of the Thermal Conductivity of Powders at High Temperatures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/18e41ece-472c-4262-9850-c16bc182e09e/download
null
An equation for the prediction of the thermal conductivity of powder beds up to high temperatures is suggested by the authors. The predicted values by the equation are compared with the values of the thermal conductivity of alumina powder, magnesia powder and zirconia powder reported in the literature, and are found to...
null
null
null
null
null
null
['Klingbeil, N.W.', 'Zinn, J.W.', 'Beuth, J.L.']
2018-11-28T21:25:24Z
2018-11-28T21:25:24Z
1997
Mechanical Engineering
doi:10.15781/T25X25Z66
http://hdl.handle.net/2152/70332
eng
1997 International Solid Freeform Fabrication Symposium
Open
['SDM process', 'Microcasting']
Measurement of Residual Stresses in Parts Created by Shape Deposition Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/fc99ca1b-ed6f-43cc-81fd-fa5c9fc571c5/download
null
Residual stress build-up is a concern in any solid freeform fabrication process involving successive deposition of uncured or molten material, due to differential contractions caused by solidification or curing. The most detrimental effect of residual stresses is typically part warping, which can lead to unacceptable l...
null
null
null
null
null
null
['Steinberger, J.', 'Manetsberger, K.', 'Shen, J.', 'MulIers, J.']
2019-03-13T16:18:15Z
2019-03-13T16:18:15Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73640', 'http://dx.doi.org/10.26153/tsw/782']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['SLS', 'electromagnetic']
Measurement of the Sintering Dynamics of polymeric powders at Near SLS Conditions
Conference paper
https://repositories.lib.utexas.edu//bitstreams/2d4f5048-b14d-469d-b508-755734177604/download
null
The sintering dynamics of materials used in the Selective Laser Sintering process impact greatly the thermal conditions of the powder bed. An experimental setup was developed to obtain sintering rate information at conditions very near to those of the SLS process. The system consists of a powder sample heated by a CO2 ...
null
null
null
null
null
null
['Sih, Samuel S.', 'Barlow, Joel W.']
2018-05-03T20:04:24Z
2018-05-03T20:04:24Z
1993
Mechanical Engineering
doi:10.15781/T2BG2HT54
http://hdl.handle.net/2152/65081
eng
1993 International Solid Freeform Fabrication Symposium
Open
['Chemical Engineering Department', 'sintering', 'laser-heat', 'thermal']
Measurement of the Thermal Conductivity of Powders by Two Different Methods
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6e2a9f46-5368-410f-b34a-d909d1029617/download
null
The thermal diffusivities and thermal conductivities of powders, especially PMMA-coated silicon carbide, at various temperatures, have been tested by two different dynamic methods, the water-bath method and the laser-heated method. The thermal conductivity data found by these two techniques are found to be consistent w...
null
null
null
null
null
null
['Sih, Samuel S.', 'Barlow, Joel W.']
2018-04-19T17:25:44Z
2018-04-19T17:25:44Z
1991
Mechanical Engineering
doi:10.15781/T2JS9HR3W
http://hdl.handle.net/2152/64389
eng
1992 International Solid Freeform Fabrication Symposium
Open
['Chemical Engineering Department', 'polymer powders', 'SLS']
The Measurement of the Thermal Properties and Absorptances of Powders Near their Melting Temperatures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0f75d6fe-d37e-473f-9e1f-5e1e9841dca4/download
null
A new technique, using a laser as the heating source, has been adopted to measure the heat capacities, thermal diffusivities, thermal conductivities, and absorptances of powders (especially polymer powders) near their melting temperatures. This makes use of an unsteady state process. The data of the thermal conductivit...
null
null
null
null
null
null
['Fly, David E.', 'Gradowski, Anita', 'Espalin, David', 'Winker, Rob', 'Rask, Josh']
2021-10-18T20:24:48Z
2021-10-18T20:24:48Z
2014
Mechanical Engineering
null
https://hdl.handle.net/2152/89233
eng
2014 International Solid Freeform Fabrication Symposium
Open
['CMM', 'gauge blocks', 'gauge pins', 'calipers', 'FDM', '3D printing', '3D scanning', 'error compensation', 'sources of variation']
Measurement Systems Comparison on Various Feature Sizes of FDM Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cd22a743-7b1b-4e9d-aeae-90cbeef26dff/download
University of Texas at Austin
12 identical FDM parts were produced in ABSM30, each having 16 features for replicated measurements. Half the features were positive (posts), half were negative (holes). Half of all features were rectangular, half were round. Two different CMMs with 1.5mm touch probes were compared, one CMM additionally used a laser, a...
null
null
null
null
null
null
['Fodran, Eric', 'Koch, Martin', 'Menon, Unny']
2018-11-14T20:58:25Z
2018-11-14T20:58:25Z
1996
Mechanical Engineering
doi:10.15781/T20V8B325
http://hdl.handle.net/2152/70266
eng
1996 International Solid Freeform Fabrication Symposium
Open
['FDM', 'mechanical properties', 'polymer materials']
Mechanical and Dimensional Characteristics of Fused Deposition Modeling Build Styles
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b21f67dd-9ccc-4c33-8fb0-a03e3576b30a/download
null
As rapid prototyping becomes more prominent, industry relies more on the mechanical properties of the builds. Fused Deposition Modeling (FDM) tensile samples were constructed and tested in order to characterize the mechanical properties of Acrylonitrile Butadiene Styrene (ABS) FDM builds. Parameters such as fill gap, l...
null
null
null
null
null
null
['Rüsenberg, S.', 'Schimdt, L.', 'Schmid, H.-J.']
2021-10-04T21:28:03Z
2021-10-04T21:28:03Z
8/17/11
Mechanical Engineering
null
['https://hdl.handle.net/2152/88352', 'http://dx.doi.org/10.26153/tsw/15291']
eng
2011 International Solid Freeform Fabrication Symposium
Open
['physical properties', 'mechanical properties', 'laser sintered parts', 'polyamide parts']
Mechanical and Physical Properties - A Way to Assess Quality of Laser Sintered Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a614c87e-dce4-44cc-a0f9-52fee509c73a/download
University of Texas at Austin
The aim of this paper is the description and evaluation of physical properties like porosity and density and their influence on mechanical properties of laser sintered polyamide parts. For example, by reducing the porosity an increase of mechanical properties is possible. The correlation of laser parameters to these pr...
null
null
null
null
null
null
['Venkataraman, N.', 'Rangarajan, S.', 'Matthewson, M.J.', 'Safari, A.', 'Danforth, S.C.', 'Yardimci, A.', 'Guceri, S.I.']
2019-03-15T15:49:49Z
2019-03-15T15:49:49Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73685', 'http://dx.doi.org/10.26153/tsw/827']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['Fused deposition of ceramics', 'solid freeform']
Mechanical and Rheological Properties of Feedstock Material for Fused Deposition of Ceramics and Metals (FDC and FDMet) and their Relationship to Process Performance
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1910680e-5974-4d56-9fd4-8d86904537e7/download
null
Fused deposition of ceramics (FDC) is a solid freeform fabrication technique based on extrusion of a highly loaded thermoplastic binder system. The present FDC process uses filament feedstock of 1.780 mm ± 0.025 mm diameter. The.filament acts as both the piston driving the extrusion process as well as the molten feedst...
null
null
null
null
null
null
['Knoop, F.', 'Schoeppner, V.']
2021-10-21T15:13:54Z
2021-10-21T15:13:54Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89391
eng
2015 International Solid Freeform Fabrication Symposium
Open
['Fused Deposition Modeling', 'polyamide 12', 'mechanical properties', 'thermal properties']
Mechanical and Thermal Properties of FDM Parts Manufactured with Polyamide 12
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5e34de4f-e770-4211-8b49-2535ecfa293f/download
University of Texas at Austin
Fused Deposition Modeling (FDM) is an Additive Manufacturing (AM) technology which is used for prototypes, single-part production and also small batch productions. For use as a final product, it is important that the parts have good mechanical properties, high dimensional accuracy and smooth surfaces. The knowledge of ...
null
null
null
null
null
null
['Davies, S.J.', 'Jeffs, S.P.', 'Lancaster, R.J.', 'Baxter, G.']
2021-11-02T14:14:39Z
2021-11-02T14:14:39Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89810
eng
2017 International Solid Freeform Fabrication Symposium
Open
['small punch tensile test', 'nickel superalloy', 'laser powder bed fusion', 'LPBF', 'build orientation', 'heat treatment']
Mechanical Assessment of a LPBF Nickel Superalloy Using the Small Punch Test Method
Conference paper
https://repositories.lib.utexas.edu//bitstreams/22c632bd-dfaf-45bc-8a0e-6616b952d30a/download
University of Texas at Austin
With the continuous drive of the aerospace industry to introduce Additive Layer Manufacturing (ALM) into next generation gas turbine engines, the requirement to understand their mechanical performance has grown. However, limitations in material availability due to the nature of the process can restrict the scope for co...
null
null
null
null
null
null
['Guivier, Manon', 'Kuebler, Jesse', 'Swanson, Trevor', 'Lawson, Christopher', 'Fernandez-Ballester, Lucia', 'Negahban, Mehrdad', 'Sealy, Michael P.']
2021-12-07T18:45:32Z
2021-12-07T18:45:32Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90754', 'http://dx.doi.org/10.26153/tsw/17673']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['hybrid additive manufacturing', 'fused filament fabrication', 'polymer', 'ultrasonic peening']
Mechanical Behavior of ABS after Interlayer Ultrasonic Peening Printed by Fused Filament Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a357eba2-dd85-4068-bb9b-e29adc3e0c6b/download
University of Texas at Austin
Hybrid additive manufacturing brought new opportunities to improve the mechanical properties of materials by secondary processing of individual layers during printing. Previous work demonstrated interlayer shot peening during printing by fused filament fabrication (FFF) affected mechanical behavior while inadvertently ...
null
null
null
null
null
null
['Shrestha, Rakish', 'Sterling, Amanda', 'Lessel, Brandon', 'Phan, Nam', 'Sereshk, Mohammad Reza Vaziri', 'Shamsaei, Nima']
2021-11-09T20:07:50Z
2021-11-09T20:07:50Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90151', 'http://dx.doi.org/10.26153/tsw/17072']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['monotonic tensile test', 'lattice', 'schoen gyroid structure', 'additive manufacturing', '17-4 PH SS']
Mechanical Behavior of Additively Manufactured 17-4 PH Stainless Steel Schoen Gyroid Lattice Structure
Conference paper
https://repositories.lib.utexas.edu//bitstreams/30f4d075-1bd5-45b6-8383-36d1c601d262/download
University of Texas at Austin
In this study, the mechanical properties of additively manufactured 17-4 PH stainless steel Schoen Gyroid lattice structures were investigated under monotonic tensile loading. Based on the results obtained from the monotonic tensile test, relationship between tensile properties and relative density of Schoen Gyroid was...
null
null
null
null
null
null
['Sereshk, Mohammad Reza Vaziri', 'Shrestha, Rakish', 'Lessel, Brandon', 'Phan, Nam', 'Shamsaei, Nima']
2021-11-30T21:42:03Z
2021-11-30T21:42:03Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90559', 'http://dx.doi.org/10.26153/tsw/17478']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['lattice structures', 'gyroids', 'heat treatment', 'mechanical behavior', 'post-processing', 'laser beam powder bed fusion']
Mechanical Behavior of Additively-Manufactured Gyroid Lattice Structure under Different Heat Treatments
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3f8757c6-fefb-4e77-a6d2-978e0fca58c3/download
University of Texas at Austin
Gyroid lattice structures, known for high stiffness and specific strength, are gaining attention for their energy absorption ability. However, energy absorption and strength of the gyroids are two desired properties, which vary contradictory. This study investigates manipulating properties on lattices using post-proces...
null
null
null
null
null
null
['Wang, Mei', 'Zhou, Yan', 'Wei, Q.S.', 'Fan, Zhunfeng']
2021-11-10T22:50:00Z
2021-11-10T22:50:00Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90198', 'http://dx.doi.org/10.26153/tsw/17119']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['AISI H13', 'hot-work', 'tool steel', 'tensile stress', 'mechanical behavior', 'selective laser melting']
The Mechanical Behavior of AISI H13 Hot-Work Tool Steel Processed by Selective Laser Melting under Tensile Stress
Conference paper
https://repositories.lib.utexas.edu//bitstreams/40654d69-2e18-4209-a70e-9ad2ec5799c2/download
University of Texas at Austin
AISI H13 tool steel is commonly used in hot-working applications include die casting dies, inserts, forging dies, extrusion dies, etc. Molds fabricated by selective laser melting (SLM) with conforming cooling channels can maintain a steady and uniform cooling performance to the molding parts, which ensures high quality...
null
null
null
null
null
null
['Jiang, D.', 'Smith, D.E.']
2021-10-27T22:54:53Z
2021-10-27T22:54:53Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89640
eng
2016 International Solid Freeform Fabrication Symposium
Open
['fused filament fabrication', 'carbon fiber', 'mechanical behavior']
Mechanical Behavior of Carbon Fiber Composites Produced with Fused Filament Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/be8b30df-5bac-4f49-8386-0d29e97ba227/download
University of Texas at Austin
Fused Filament Fabrication (FFF) is a commonly used Additive Manufacturing (AM) technique. However, the printed parts often lack sufficient mechanical integrity. Recently, mechanical properties of FFF filament have been enhanced by blending pure polymer with short carbon fibers. This paper presents a study of the mecha...
null
null
null
null
null
null
['Denham, Hugh B.', 'Cesarano III, Joseph', 'King, Bruce H.', 'Calvert, Paul']
2019-02-26T20:49:31Z
2019-02-26T20:49:31Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73500', 'http://dx.doi.org/10.26153/tsw/650']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['ceramic', 'strength']
Mechanical Behavior of Robocast Alumina
Conference paper
https://repositories.lib.utexas.edu//bitstreams/95deb3e9-8efd-4ef3-8628-c9ae2919dcd0/download
null
Direct fabrication of alumina parts by robocasting was completed. This method is based on three-dimensional deposition of binderless aqueous alumina slurries. Parts were made with different deposition paths and mechanical·testing performed·to determine the effects •of bead alignment. Properties were also compared to. a...
null
null
null
null
null
null
['Amado-Becker, Felipe', 'Díaz, Richard A.', 'Ramos-Grez, Jorge']
2020-03-05T20:06:16Z
2020-03-05T20:06:16Z
2006
Mechanical Engineering
null
['https://hdl.handle.net/2152/80154', 'http://dx.doi.org/10.26153/tsw/7175']
eng
2006 International Solid Freeform Fabrication Symposium
Open
Selective Laser Sintering
Mechanical Behavior of SLS Components in Relation to the Build Orientation During the Sintering Process as Measured by ESPI
Conference paper
https://repositories.lib.utexas.edu//bitstreams/afb3e679-633c-4a3a-af66-56b43f2b0f8f/download
null
Selective Laser Sintering (SLS) allows producing real parts from CAD data from materials with different characteristics compared to the final model, presenting dissimilar mechanical properties between the prototype and the product. The purpose of this work is to correlate the mechanical behavior of beam-type specimens ...
null
null
null
null
null
null
['Roach, M.A.', 'Keicher, D.', 'Maines, E.', 'Wall, B.', 'Wall, C.', 'Lavin, J.', 'Whetten, S.', 'Evans, L.']
2021-11-10T21:18:28Z
2021-11-10T21:18:28Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90178', 'http://dx.doi.org/10.26153/tsw/17099']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['ceramics', 'alumina', 'mechanical challenges', '3D printing', 'digital light processing', 'stereolithography']
Mechanical Challenges of 3D Printing Ceramics Using Digital Light Processing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c54b3e1b-f474-444e-b873-c8148675400b/download
University of Texas at Austin
Digital light processing (DLP) 3D printing can be used for manufacturing complex structures using a variety of materials, which would be nearly impossible using traditional manufacturing methods. Recent work at Sandia National Laboratories uses DLP technology for additive manufacturing of complex alumina structures, us...
null
null
null
null
null
null
['Bertoldi, M', 'Yardimci, M', 'Pistor, C. M.', 'Guceri, S. I', 'Sala, G']
2019-02-26T20:20:28Z
2019-02-26T20:20:28Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73496', 'http://dx.doi.org/10.26153/tsw/646']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['Fused Deposition Modeling', 'polymer-based material']
Mechanical Characterization of Parts Processed via Fused Deposition
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8e6c667b-678c-49f1-bb67-2b1bb5c0a8fd/download
null
The possibility of using materials with better physical and mechanical properties together with the quickly improving capabilities of various processes increasingly make Rapid Prototyping (RP) as a new manufacturing technology for specialty components. In Fused Deposition Modeling (FDM), the build orientation and the t...
null
null
null
null
null
null
['Correa, Dixon', 'Bostwick, Ken', 'Wilson, Preston S.', 'Haberman, Michael', 'Seepersad, Carolyn Conner']
2021-10-21T19:21:49Z
2021-10-21T19:21:49Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89428
eng
2015 International Solid Freeform Fabrication Symposium
Open
['negative stiffness honeycombs', 'impact', 'impact performance', 'additive manufacturing']
Mechanical Impact Performance of Additively Manufactured Negative Stiffness Honeycombs
Conference paper
https://repositories.lib.utexas.edu//bitstreams/13044470-bbae-4a04-8fb8-03b4d887d6cd/download
University of Texas at Austin
Negative stiffness honeycombs materials are comprised of negative stiffness beams arranged in ordered arrays. They are capable of providing isolation from impacts and returning to their initial shape. Previous research by the authors focused on the behavior of negative stiffness honeycombs to quasi-static loading condi...
null
null
null
null
null
null
['Weflen, E.D.', 'Ginther, M.C.', 'Eldakroury, M.A.', 'Frank, M.C.']
2021-12-07T18:57:26Z
2021-12-07T18:57:26Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90757', 'http://dx.doi.org/10.26153/tsw/17676']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['iterative processing', 'mechanical interface', 'hybrid additive manufacturing', 'hybrid subtractive manufacturing']
Mechanical Interface for Iterative Hybrid Additive and Subtractive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a4286668-3b59-4c24-976c-7b7b51b91ac7/download
University of Texas at Austin
Additive and subtractive manufacturing systems for in-envelope production of large objects face challenges with respect to reach and access of cutting tools. One approach to overcoming this is iteratively alternate between additive and subtractive processes. However, polymer objects require cooling before machining, re...
null
null
null
null
null
null
['Benedetti, L.', 'Brulé, B.', 'Decraemer, N.', 'Davies, R.', 'Evans, K.', 'Ghita, O.']
2021-11-18T01:19:06Z
2021-11-18T01:19:06Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90389', 'http://dx.doi.org/10.26153/tsw/17310']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['high temperature laser sintering', 'PEKK', 'mechanical performance']
Mechanical Performance of Laser Sintered Poly(ether Ketone Ketone) (PEKK)
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d556d781-f86a-40fe-b725-5d0194193da5/download
University of Texas at Austin
The recent progress in Additive Manufacturing Powder Bed Fusion systems are bound to attract uptake of new high performance materials. Within the Poly(aryl ether ketone) (PAEK) family, Poly(ether ketone ketone) (PEKK) shows promising mechanical properties, comparable with the commercial laser sintering grade PEK HP3, w...
null
null
null
null
null
null
['Ponnusamy, P.', 'Masood, S.H.', 'Ruan, D.', 'Palanisamy, S.', 'Rahman Rashid, R.A.', 'Ahmed Mohamed, Omar']
2021-11-02T15:11:09Z
2021-11-02T15:11:09Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89824
eng
2017 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', '17-4 PH', 'quasi-static compression', 'microhardness', 'factorial design']
Mechanical Performance of Selective Laser Melted 17-4 PH Stainless Steel Under Compressive Loading
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6f67acfb-8547-45d3-a451-4c11a6c98226/download
University of Texas at Austin
Selective Laser Melting (SLM) is a powder-bed type Additive Manufacturing (AM) process, where metal powder melting is followed by rapid solidification to yield metallic components. The mechanical performance of the components is greatly influenced by various SLM process parameters such as laser power, scan speed, scan ...
null
null
null
null
null
null
['Bens, A. T.', 'Tille, C.', 'Leukers, B.', 'Bermes, G.', 'Emons, M.', 'Sobe, R.', 'Pansky, A.', 'Roitzheim, B.', 'Schulze, M.', 'Tobiasch, E.', 'Seitz, H.']
2020-02-20T21:04:38Z
2020-02-20T21:04:38Z
8/25/05
Mechanical Engineering
null
https://hdl.handle.net/2152/80054
eng
2005 International Solid Freeform Fabrication Symposium
Open
stereolithography
Mechanical Properties and Bioanalytical Characterization for a Novel Non-Toxic Flexible Photopolymer Formulation Class
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7701583d-70fc-4987-86c6-99aab3cc2509/download
null
We present herein a new class of resin formulations for stereolithography, named FlexSL, with a broad bandwidth of tunable mechanical properties. The novel polyether(meth)acrylate based material class has outstanding material characteristics in combination with the advantages of being a biocompatible (meth)acrylate bas...
null
null
null
null
null
null
['Dalgarno, K. W.', 'Wood, D. J.', 'Goodridge, R. D.', 'Xiao, K.', 'Ohtsuki, C.', 'Genever, P.', 'Dyson, J.']
2020-02-20T20:44:01Z
2020-02-20T20:44:01Z
8/25/05
Mechanical Engineering
null
https://hdl.handle.net/2152/80051
eng
2005 International Solid Freeform Fabrication Symposium
Open
['apatite-mullite', 'apatite-wollostonite']
Mechanical Properties and Biological Responses of Bioactive Glass Ceramics Processed using Indirect SLS
Conference paper
https://repositories.lib.utexas.edu//bitstreams/df654d2f-6258-404a-bfa9-1e12660c1e3f/download
null
This paper will report on research which aims to generate bone replacement components by processing bioactive glass-ceramic powders using indirect selective laser sintering. The indirect SLS route has been chosen as it offers the ability to tailor the shape of the implant to the implantation site, and two bioactive gla...
null
null
null
null
null
null
['Obielodan, J.', 'Delwiche, M.']
2023-03-29T16:25:53Z
2023-03-29T16:25:53Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117680', 'http://dx.doi.org/10.26153/tsw/44559']
eng
2022 International Solid Freeform Fabrication Symposium
Open
laser sintering
Mechanical Properties Characterization for Polyamide Matrix Dairy Protein Composites Fabricated Using Selective Laser Sintering Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f84ce460-5358-4190-85dd-d15a5b125de5/download
null
This work investigates the viability of casein protein for manufacturing engineering structures. Polyamide 12 (PA12) was used as a matrix for different compositions of casein up to 20 wt%. Test samples were fabricated for neat PA12 and the composites using selective laser sintering for mechanical properties comparis...
null
null
null
null
null
null
['Yan, Lei', 'Cui, Wenyuan', 'Newkirk, Joseph W.', 'Liou, Frank', 'Thomas, Eric E.', 'Baker, Andrew H.', 'Castle, James B.']
2021-11-09T15:32:58Z
2021-11-09T15:32:58Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90096', 'http://dx.doi.org/10.26153/tsw/17017']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['Ti-6Al-4V', 'thin-wall structure', 'laser metal deposition', 'CNC milling', 'hybrid manufacturing', 'design of experiment']
Mechanical Properties Evaluation of a Ti-6Al-4V Thin-Wall Structure Produced by a Hybrid Manufacturing Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/076a2a45-d15a-40a8-9648-6e2a33e3dc84/download
University of Texas at Austin
The hybrid manufacturing (HM) process combines the precision of computer numerical control (CNC) and the freeform capability of additive manufacturing to expand the versatility of advanced manufacturing. The intent of this paper is to explore the relationship between HM processing parameters and mechanical properties o...
null
null
null
null
null
null
['Hung, Chia-Hung', 'Shen, Yiyu', 'Leu, Ming', 'Tsai, Hai-Lung']
2021-11-04T15:33:21Z
2021-11-04T15:33:21Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/89987', 'http://dx.doi.org/10.26153/tsw/16908']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['mechanical property', '304L stainless steel', '304L', 'laser-foil-printing']
Mechanical Properties of 304L Metal Parts Made by Laser-Foil-Printing Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9c28d9b8-fbfe-44df-85ab-22f176e0b19a/download
University of Texas at Austin
Laser-Foil-Printing (LFP) is a novel laminated object manufacturing process for metal additive manufacturing. It fabricates three-dimensional metal parts by using a dual-laser system to weld and cut metal foils layer by layer. A main advantage of LFP is the higher cooling rate compared to powder-based laser additive ma...
null
null
null
null
null
null
['Pinter, P.', 'Baumann, S.', 'Lohr, C.', 'Heuer, A.', 'Englert, L.', 'Weidenmann, K.A.']
2021-11-15T22:28:41Z
2021-11-15T22:28:41Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90295', 'http://dx.doi.org/10.26153/tsw/17216']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['APF', 'FFF', 'impact properties', 'computed tomography']
Mechanical Properties of Additively Manufactured Polymer Samples using a Piezo Controlled Injection Molding Unit and Fused Filament Fabrication compared with a Conventional Injection Molding Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/84d90199-4e35-498c-8a7d-be66379f3c9d/download
University of Texas at Austin
In polymer additive manufacturing (AM), many processes have been developed and optimized in order to achieve decent mechanical properties in recent years. Nonetheless, it is hardly possible to reach the reference properties given by the injection molding process using the same base material. Within this contribution, a...
null
null
null
null
null
null
['Brøtan, V.', 'Fergani, O.', 'Sørby, K.', 'Welo, T.']
2021-11-01T21:10:29Z
2021-11-01T21:10:29Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89753
eng
2016 International Solid Freeform Fabrication Symposium
Open
['strut size', 'stiffness', 'compressive strength', '316L', 'rhombic dodecahedron', 'lattice structures', 'additive manufacturing']
Mechanical Properties of Biocompatible 316L Steel Rhombic Dodecahedron Lattice Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7abce253-fcfc-42fe-932a-cd7d495b06be/download
University of Texas at Austin
Additive manufactured lattice structures have the potential of enhancing many of today’s engineered products manufactured by traditionally methods. The former provides the capability of altering the mechanical, thermal and acoustic properties of structures through the use of lattices. However, more investigation is nee...
null
null
null
null
null
null
['Wang, Zezheng', 'Runzi, Michael', 'Gilchrist, Matthew', 'Gong, Haijun']
2021-12-01T23:27:27Z
2021-12-01T23:27:27Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90655', 'http://dx.doi.org/10.26153/tsw/17574']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['PEEK', 'mechanical properties', 'fused deposition modeling']
Mechanical Properties of High-Performance Plastic Polyether-ether-ketone (PEEK) Printed by Fused Deposition Modeling
Conference paper
https://repositories.lib.utexas.edu//bitstreams/232e7d0e-2db3-481f-a832-c4c6b5da59d7/download
University of Texas at Austin
Polyether-ether-ketone (PEEK) is a high-performance thermoplastic material with high heat resistance, high chemical resistance, high water resistance, and high wear resistance. Due to its distinguished strength and durability, PEEK is extensively used for aerospace, automotive, and medical applications. 3D printing PEE...
null
null
null
null
null
null
['Bandyopadhyay, Amit', 'Atisivan, Raj', 'Kuhn, Gabe', 'Yeruva, Suresh']
2019-09-18T16:07:37Z
2019-09-18T16:07:37Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75897', 'http://dx.doi.org/10.26153/tsw/2997']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Alumina-Al
Mechanical Properties of Interconnected Phase Alumina-Al Composites 24
Conference paper
https://repositories.lib.utexas.edu//bitstreams/418b02f4-bff1-454b-af44-819cddeccd03/download
null
Interconnected phase alumina-Al composites were fabricated by pressureless reactive metal infiltration of porous mullite ceramic preforms. Controlled porosity mullite ceramics were processed via the indirect fused deposition. Volume fraction, size and distribution of metals were varied in the composite to understand th...
Office of Naval Research through the grant N00014-98-1-550 (Program Manager: Dr. Steve Fishman).
null
null
null
null
null
['Kobryn, P.A.', 'Semiatin, S.L.']
2019-10-10T16:54:21Z
2019-10-10T16:54:21Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76172', 'http://dx.doi.org/10.26153/tsw/3261']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Laser-Deposited
Mechanical Properties of Laser-Deposited Ti-6Al-4V
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1f223781-6661-4c46-bce0-e2fdafc56f01/download
null
Laser additive manufacturing is a solid-freeform-fabrication process which is being investigated for titanium-component manufacturing and repair based on its cost-reduction potential and flexibility. Laser additive manufacturing also has the potential to improve mechanical properties due to the high cooling rates invol...
null
null
null
null
null
null
['Santos, Edson', 'Abe, F.', 'Kitamura, Y.', 'Osakada, K.', 'Shiomi, M.']
2019-10-23T14:30:23Z
2019-10-23T14:30:23Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/76547', 'http://dx.doi.org/10.26153/tsw/3636']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Titanium
Mechanical Properties of Pure Titanium Models Processed by Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/2cd12e5e-560f-4ac6-abfd-fa7436e4b592/download
null
The influence of laser processing parameters on mechanical properties and microstructure of pure titanium models made by selective laser melting is investigated. The density of the models can reach higher than 95% under proper conditions. Although the tensile strength test shows results comparable to the wrought materi...
null
null
null
null
null
null
['Aboulkhair, Nesma T.', 'Stephens, Alex', 'Maskery, Ian', 'Tuck, Chris', 'Ashcroft, Ian', 'Everitt, Nicola M.']
2021-10-21T15:34:14Z
2021-10-21T15:34:14Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89398
eng
2015 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'aluminum alloys', 'AlSi10Mg', 'nanoscale', 'microscale', 'macroscale', 'mechanical properties']
Mechanical Properties of Selective Laser Melted AlSi10Mg: Nano, Micro, and Macro Properties
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4f3cb635-ea27-4afa-b824-b80260674721/download
University of Texas at Austin
The selective laser melting (SLM) of aluminium alloys is of great current interest at both the industrial and research levels. Aluminium poses a challenge to SLM compared with other candidate materials, such as titanium alloys, stainless steels, and nickel-based alloys, because of its high thermal diffusivity and low i...
null
null
null
null
null
null
['Li, Yingqi', 'Leu, Ming C.', 'Tsai, Hai-Lung']
2021-11-11T15:25:38Z
2021-11-11T15:25:38Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90219', 'http://dx.doi.org/10.26153/tsw/17140']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['metallic glass', 'laser processing', 'additive manufacturing', 'mechanical properties']
Mechanical Properties of Zr-Based Bulk Metallic Glass Parts Fabricated by Laser-Foil-Printing Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/bc9f5a39-0fa5-4d18-a8f7-72f4216d1e6e/download
University of Texas at Austin
The application of bulk metallic glasses (BMGs) has been traditionally limited to parts with small dimensions and simple geometries, due to the requirement of fast cooling during the conventional process of casting. This research exemplifies a promising additive manufacturing method, i.e., laser-foil-printing (LFP), to...
null
null
null
null
null
null
['Snarr, Scott E.', 'Beaman, Joseph J. Jr', 'Fish, Scott']
2021-11-10T21:44:27Z
2021-11-10T21:44:27Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90186', 'http://dx.doi.org/10.26153/tsw/17107']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['parameter development', 'set point development', 'laser parameter', 'set point', 'selective laser sintering', 'carbon fiber reinforced polyetheretherketone', 'CFR PEEK']
Mechanical Property Correlation and Laser Parameter Development for the Selective Laser Sintering of Carbon Fiber Reinforced Polyetheretherketone
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a81ead32-4ca1-43c1-a609-c6be3d05d663/download
University of Texas at Austin
null
null
This thesis specifically investigates parameter and set point development for a material novel to the SLS process, Carbon Fiber Reinforced Polyetheretherketone (CFR PEEK).
null
null
null
null
['Khalid Rafi, H.', 'Karthik, N.V.', 'Starr, Thomas L.', 'Stucker, Brent E.']
2021-10-06T20:27:44Z
2021-10-06T20:27:44Z
8/16/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88434', 'http://dx.doi.org/10.26153/tsw/15371']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['Ti-6Al-4V', 'electron beam melting', 'mechanical properties']
Mechanical Property Evaluation of Ti-6Al-4V Parts Made Using Electron Beam Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/051d1544-3fd3-464a-bc15-7b8455f6a6a8/download
University of Texas at Austin
Cylindrical Ti-6Al-4V parts were built in vertical and horizontal orientations using electron beam melting. Tensile tests and fatigue tests were carried out. The specimens were tested in as-built and machined conditions to understand the effect of surface finish on mechanical properties. The fracture surfaces were anal...
null
null
null
null
null
null
['Dietrich, S.', 'Karcher, B.', 'Popp, U.', 'Scholz, J.']
2024-03-27T15:52:45Z
2024-03-27T15:52:45Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124492', 'https://doi.org/10.26153/tsw/51100']
en
2023 International Solid Freeform Fabrication Symposium
Open
['fused filament fabrication', 'material extrusion', 'surface treatment', 'polymer']
Mechanical Surface Treatment of Polymer Parts Produced by FFF
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e714423b-107c-4952-8eac-26b6e4bf94a5/download
University of Texas at Austin
The surface structure in the form of waviness and roughness as well as near surface density of FFF parts represents a major issue with respect to mechanical performance especially under fatigue loading. Mechanical surface treatments like shot peening or rolling are commonly used techniques, especially for metal compone...
null
null
null
null
null
null
['Dongare, Suijitkumar', 'Sparks, Todd E.', 'Newkirk, Joseph', 'Liou, Frank']
2021-10-12T21:31:17Z
2021-10-12T21:31:17Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88745', 'http://dx.doi.org/10.26153/tsw/15679']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'mini-tensile', 'mini-tensile testing', 'tensile properties']
A Mechanical Testing Methodology for Metal Additive Manufacturing Processes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7c7d22a9-ab67-45f8-b6cb-e3b61282b90a/download
University of Texas at Austin
Most additive manufacturing processes are layer-by-layer deposition, thus its mechanical properties could be very different than those made from traditional manufacturing processes. This paper summarizes a mini-tensile testing methodology for additive manufacturing. Research concerning the tensile testing of metallic m...
null
null
null
null
null
null
['Weflen, E.D.', 'Peters, F.E.', 'Frank, M.C.']
2024-03-26T21:30:14Z
2024-03-26T21:30:14Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124418', 'https://doi.org/10.26153/tsw/51026']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['big area additive manufacturing', 'print surface', 'additive manufacturing']
MECHANICALLY BONDING AND THERMALLY RELEASING PRINT SURFACE FOR BIG AREA ADDITIVE MANUFACTURING
Conference paper
https://repositories.lib.utexas.edu//bitstreams/83a07885-a65b-4af2-afb3-d6e0d61b037e/download
University of Texas at Austin
Part retention and removal are challenges for Big Area Additive Manufacturing (BAAM) systems, increasing production costs and impacting part quality. A part should remain locked to the print surface during processing and then be released for removal when processing is completed. However, a method for releasing large, m...
null
null
null
null
null
null
['Ramos, Jorge', 'Bourell, David']
2019-11-21T18:28:43Z
2019-11-21T18:28:43Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78560', 'http://dx.doi.org/10.26153/tsw/5616']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Surface Interaction
Mechanics of the Selective Laser Raster-Scanning Surface Interaction
Conference paper
https://repositories.lib.utexas.edu//bitstreams/43516d5d-52bf-4600-a557-59751b7871d9/download
null
In recent years, the use of a high power laser beam actuated by fast speed scanning mirrors has opened up novel selective laser raster-scan processing venues as extremely rapid motion and high overlapping of the beam can be attained. This permits distribution of laser energy precisely over geometric patterns such as re...
null
null
null
null
null
null
['Dwivedi, Rajeev', 'Zekovic, Srdja', 'Kovacevic, Radovan']
2020-02-24T14:25:29Z
2020-02-24T14:25:29Z
2005
Mechanical Engineering
null
['https://hdl.handle.net/2152/80074', 'http://dx.doi.org/10.26153/tsw/7095']
eng
2005 International Solid Freeform Fabrication Symposium
Open
Solid Freeform Fabrication
Mechanism for Determination of G-factors for Solid Freeform Fabrication Techniques Based on Large Heat Input
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e2d87489-6368-435c-82af-456a491b4fca/download
null
A major class of Solid Freeform Fabrication (SFF) methods for metal deposition are based on large heat input. The geometry and microstructural properties of the deposition depend primarily on the heat input and the subsequent distribution at the substrate. On one hand the insufficient heat may lead to the inadequate me...
null
null
null
null
null
null
['Nussbaum, J.', 'Crane, N.B.']
2021-10-12T20:15:51Z
2021-10-12T20:15:51Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88731', 'http://dx.doi.org/10.26153/tsw/15665']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['post processing deformation', 'additive manufacturing', 'selective heating', 'multimaterial fabrication', 'selective deformation']
Mechanisms for Post Processing Deformation without Part-Specific Tooling
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3acfbb8d-9345-43d7-90e7-39134e8c8de0/download
University of Texas at Austin
Post processing deformation of additive manufactured components offers many advantages from reduced printing time and material usage to simplified multimaterial fabrication. For thermoplastic components, controlled deformations can be achieved by locally heating to temporarily soften the material. This paper investigat...
null
null
null
null
null
null
['Gong, Haijun', 'Gu, Hengfeng', 'Zeng, Kai', 'Dilip, J.J.S.', 'Pal, Deepankar', 'Stucker, Brent']
2021-10-12T21:42:50Z
2021-10-12T21:42:50Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88748', 'http://dx.doi.org/10.26153/tsw/15682']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['Selective Laser Melting', 'pre-alloyed powder', 'Ti-6Al-4V', 'parameter optimization', 'single bead fabrication', 'melt', 'melt pool geometry']
Melt Pool Characterization for Selective Laser Melting of Ti-6Al-4V Pre-alloyed Powder
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a5f2b2be-36f6-4b50-aa11-a0e6b9b214f2/download
University of Texas at Austin
Parameter optimization for metal powders in Selective Laser Melting (SLM) is usually carried out by experimental investigations of the influence of significant parameters (such as laser power, scan speed, hatch spacing, layer thickness, scan pattern, etc.) on microstructure and/or mechanical properties. This type of ex...
null
null
null
null
null
null
['Cheng, Bo', 'Lydon, James', 'Cooper, Kenneth', 'Cole, Vernon', 'Northrop, Paul', 'Chou, Kevin']
2021-11-03T21:46:48Z
2021-11-03T21:46:48Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89942
eng
2017 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'SLM', 'infrared imaging', 'melt pool size']
Melt Pool Dimension Measurement in Selective Laser Melting Using Thermal Imaging
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e83de706-0558-4a39-8d0d-ec07d24bddcf/download
University of Texas at Austin
Process temperature measurement for selective laser melting (SLM) can provide critical information such as melt pool dimension for real-time part quality control. In this study, a MCS640 LumaSense thermal imager was utilized to collect process radiant temperature information during SLM fabrication using Inconel718 powd...
null
null
null
null
null
null
['Cheng, Bo', 'Chou, Kevin']
2021-10-21T17:53:57Z
2021-10-21T17:53:57Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89410
eng
2015 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'raster scan', 'finite element method', 'remelting']
Melt Pool Evolution Study in Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/78c63eff-d72e-4f06-9bef-007429c512f4/download
University of Texas at Austin
In selective laser melting (SLM) additive manufacturing, the completion of the entire scanning cross-sectional area of each layer build is consisted of many smaller scanning patches. Hence, the scanning length in each path may be too short to reach the melt pool quasi-steady state, thus, affecting the melt pool geometr...
null
null
null
null
null
null
['Park, Bumsoo', 'Wang, Xin', 'Mishra, Sandipan', 'Bristow, Douglas', 'Landers, Robert']
2023-01-27T13:48:46Z
2023-01-27T13:48:46Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117331', 'http://dx.doi.org/10.26153/tsw/44212']
eng
2022 International Solid Freeform Fabrication Symposium
Open
powder bed fusion
Melt Pool Feature Extraction, Spatial Registration, and Layer-To-Layer Control in Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b26e8da3-325a-4e28-91ab-a9386c704332/download
null
Laser Powder Bed Fusion (LPBF) is a well-known additive manufacturing technique that uses a high- power laser to fuse loose metal powder into a solid part. A major issue restricting this technology from wider industrial applications is the lack of part quality assurance. In this paper, a high-speed (2kHz) co-axial nea...
null
null
null
null
null
null
['Cheng, Bo', 'Chou, Kevin']
2021-10-11T21:49:05Z
2021-10-11T21:49:05Z
8/16/13
Mechanical Engineering
null
['https://hdl.handle.net/2152/88655', 'http://dx.doi.org/10.26153/tsw/15589']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['design of experiments', 'electron beam additive manufacturing', 'melt pool geometry', 'process parameters', 'thermal modeling']
Melt Pool Geometry Simulations for Powder-Based Electron Beam Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3b6f3c78-0e0c-4e92-b37c-7da0f666509e/download
University of Texas at Austin
It is known that the melt pool geometry and dynamics strongly affect the build part properties in metal-based additive manufacturing (AM) processes. Thus, process temperature predictions may offer useful information of the melt pool evolution during the heating-cooling cycle. A transient thermal modeling for powder-bas...
null
null
null
null
null
null
['Sampson, R.', 'Lancaster, R.', 'Weston, M.']
2021-11-04T14:06:30Z
2021-11-04T14:06:30Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89964
eng
2017 International Solid Freeform Fabrication Symposium
Open
['image process acceleration', 'image processing', 'melt pool', 'General Purpose', 'Graphics Processing Units', 'direct energy deposition']
Melt Pool Image Process Acceleration Using General Purpose Computing on Graphics Processing Units
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e6935e2b-6840-4f34-b9fd-158cf3c51310/download
University of Texas at Austin
The additive manufacturing (AM) process is incredibly complex, and the intricate web of changing process parameters can result in poor repeatability and structural consistency. New geometric designs result in an initial iteration process to optimise build parameters, which is highly laborious and time consuming. A deep...
null
null
null
null
null
null
['Gibson, B.T.', 'Bandari, Y.K.', 'Richardson, B.S.', 'Roschli, A.C.', 'Post, B.K.', 'Borish, M.C.', 'Thornton, A.', 'Henry, W.C.', 'Lamsey, M.', 'Love, L.J.']
2021-11-18T18:06:47Z
2021-11-18T18:06:47Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90450', 'http://dx.doi.org/10.26153/tsw/17371']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['melt pool monitoring', 'large scale metal additive manufacturing', 'laser-wire based directed energy deposition', 'Oak Ridge National Laboratory', 'GKN Aerospace']
Melt Pool Monitoring for Control and Data Analytics in Large-Scale Metal Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f01edcc5-ce0a-482b-9ea6-8388aafebaf0/download
University of Texas at Austin
Laser-wire based Directed Energy Deposition (DED) processes are being developed at Oak Ridge National Laboratory’s Manufacturing Demonstration Facility, in collaboration with GKN Aerospace, for large volume metal additive manufacturing of metallic structures. The technology has the potential to deliver reduced costs an...
null
null
null
null
null
null
['Aggarangsi, Pruk', 'Beuth, Jack L.', 'Griffith, Michelle']
2019-11-20T16:13:25Z
2019-11-20T16:13:25Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78468', 'http://dx.doi.org/10.26153/tsw/5553']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Laser-Based Deposition
Melt Pool Size and Stress Control for Laser-Based Deposition Near a Free Edge
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6537b774-f88d-4cb2-88fd-cf399e166304/download
null
Thermomechanical models developed in this research address two experimental observations made during the deposition of thin-walled structures by the LENSTM process. The first observation (via thermal imaging) is of substantial increases in melt pool size as a vertical free edge is approached under conditions of constan...
This research was supported by the National Science Foundation Division of Design, Manufacture and Industrial Innovation, through the Materials Processing and Manufacturing Program, award number DMI-0200270.
null
null
null
null
null
['Vasinonta, Aditad', 'Beuth, Jack L.', 'Ong, Raymond']
2019-10-18T16:08:43Z
2019-10-18T16:08:43Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76248', 'http://dx.doi.org/10.26153/tsw/3337']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Thin-Walled
Melt Pool Size Control in Thin-Walled and Bulky Parts via Process Maps
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5fd62660-b1b1-4c55-bdaf-79a71aa008bd/download
null
Control of melt pool size is critical for maintaining consistent build conditions in the solid freeform fabrication of complex shapes. In this research, melt pool size in laser-based solid freeform fabrication processes is studied for both thin-walled structures and bulky parts. Numerical simulations are used to constr...
This research has been supported by the National Science Foundation under grant DMI9700320 and by Sandia National Laboratories under grant BE-0792.
null
null
null
null
null
['Patel, S.', 'Vlasea, M.L.']
2021-11-18T17:08:01Z
2021-11-18T17:08:01Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90431', 'http://dx.doi.org/10.26153/tsw/17352']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['process parameter', 'temperature prediction', 'melting mode thresholds', 'laser powder bed fusion']
Melting Mode Thresholds in Laser Powder Bed Fusion and Their Application Towards Process Parameter Development
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c73ac52d-dc19-4bd0-a551-f2af205e712c/download
University of Texas at Austin
Depending on processing conditions, laser powder bed fusion (LPBF) has broadly two different processing regimes, conduction and keyhole mode. Heat conduction governs the melt pool morphology observed in conduction mode melting. In contrast, keyhole mode melting is observed when the morphology of the molten pool is cont...
null
null
null
null
null
null
['Choi, S. H.', 'Kwok, K. T.']
2019-03-12T16:06:11Z
2019-03-12T16:06:11Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73593', 'http://dx.doi.org/10.26153/tsw/735']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['Rapid Prototyping', 'CAD']
A Memory Efficient Slicing Algorithm for Large STL Files
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ad7238eb-9717-402d-ba5f-87154bebe67c/download
null
This paper proposes a memory efficient slicing algorithm for Rapid Prototyping (RP) processes. The algorithm is aimed to overcome the constraints of computer memory inherent in the .conventional slicing methodologies.lte~tracts from the Stereolithography (STL) file the facets that intersect with the cutting plane to pr...
null
null
null
null
null
null
['Park, Byong-Ho', 'Prinz, Fritz B.']
2019-09-23T15:30:27Z
2019-09-23T15:30:27Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75937', 'http://dx.doi.org/10.26153/tsw/3036']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Assemblies
Mesoscopic Assemblies with SDM Processing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5f6aed92-7d46-4e79-aa2d-6af56ece64bc/download
null
Shape Deposition Manufacturing (SDM) is a layered manufacturing process capable of building complex 3D parts through the combination of material addition and subtraction. Overhangs can be built with the help of sacrificial support materials. SDM achieves high surface quality by taking advantage of material subtraction ...
null
null
null
null
null
null
['Shrestha, Subin', 'Chou, Kevin']
2021-11-03T21:28:19Z
2021-11-03T21:28:19Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89937
eng
2017 International Solid Freeform Fabrication Symposium
Open
['powder distribution', 'selective laser melting', 'thermo-fluid model']
Mesoscopic Multilayer Simulation of Selective Laser Melting Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/62998607-e229-4011-8b15-5defe25954fb/download
University of Texas at Austin
Selective Laser Melting (SLM) is a metal additive manufacturing with complex process physics that requires understanding of metallic particle accumulations and interactions to layer additions. In this work, a mesoscopic multilayer numerical model with volume of fluid (VOF) method is developed using ANSYS/FLUENT. At fir...
null
null
null
null
null
null
['Lee, Y.S.', 'Zhang, W.']
2021-10-21T17:10:03Z
2021-10-21T17:10:03Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89408
eng
2015 International Solid Freeform Fabrication Symposium
Open
['particle size distribution', 'additive manufacturing', 'volume of fluid', 'powder bed fusion']
Mesoscopic Simulation of Heat Transfer and Fluid Flow in Laser Powder Bed Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3516540e-ffc0-4f11-884a-943f56ac3669/download
University of Texas at Austin
Laser-powder bed fusion (L-PBF) additive manufacturing involves complex physics such as heat transfer and molten metal flow, which have a significant influence on the final build quality. In this study, transport phenomena based modeling is used to provide a quantitative understanding of complex molten pool transients....
null
null
null
null
null
null
['Vendra, L.', 'Achanta, A.']
2021-11-09T18:43:44Z
2021-11-09T18:43:44Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90114', 'http://dx.doi.org/10.26153/tsw/17035']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['metal additive manufacturing', 'additive manufacturing', 'oil industry', 'gas industry']
Metal Additive Manufacturing in the Oil and Gas Industry
Conference paper
https://repositories.lib.utexas.edu//bitstreams/716250ad-ce25-4c2c-b70c-5a62f4105c17/download
University of Texas at Austin
Additive Manufacturing (AM) has gained increasing prominence and had the most significant commercial impact in the aerospace sector in the last few years. The adoption of AM in the oil and gas industry has been slow, although the potential economic benefits it offers are tremendous. Improving product performance, reduc...
null
null
null
null
null
null
['Liu, Z. E.', 'Wei, P.', 'Kernan, B.', 'Heuer, A. H.', 'Cawle, J. D.']
2018-11-14T20:00:00Z
2018-11-14T20:00:00Z
1996
Mechanical Engineering
doi:10.15781/T2SB3XJ3K
http://hdl.handle.net/2152/70260
eng
1996 International Solid Freeform Fabrication Symposium
Open
['CAM-LEM', 'sheet feedstocks', 'microstructure']
Metal and Ceramic Components made via CAM-LEM Technology
Conference paper
https://repositories.lib.utexas.edu//bitstreams/31760035-0c9d-4bc6-902c-95c4687c94a3/download
null
CAM-LEM (Computer-Aided Manufacturing ofLaminated Engineering Materials) is an SFF technology suitable for many engineering materials for which feedstock is available in sheet form; lamination and post-processing procedures are materials specific. Two methods for producing sheetstock, tapecasting and compression moldin...
null
null
null
null
null
null
['Himmer, Thomas', 'Techel, Anja', 'Nowotny, Steffen', 'Beyer, Eckhard']
2020-02-13T20:02:46Z
2020-02-13T20:02:46Z
2004
Mechanical Engineering
null
['https://hdl.handle.net/2152/79972', 'http://dx.doi.org/10.26153/tsw/6997']
eng
2004 International Solid Freeform Fabrication Symposium
Open
fast manufacturing
Metal Laminated Tooling - A Quick and Flexible Tooling Concept
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c23791d5-893d-4e84-9789-aea03b13ae9e/download
null
null
null
For the fast manufacturing of complex formed tools Fraunhofer IWS works together with partners from the industry on a constant automation solution for cutting, packaging and adding steel sheet cutouts. With the selection of the most suitable connecting technology, also requirements must be considered to quality, surfac...
null
null
null
null
['Badrinarayan, B.', 'Barlow, J.W.']
2018-04-19T17:34:50Z
2018-04-19T17:34:50Z
1992
Mechanical Engineering
doi:10.15781/T2988346K
http://hdl.handle.net/2152/64391
eng
1992 International Solid Freeform Fabrication Symposium
Open
['Department of Chemical Engineering', 'Electric Discharge Machining', 'PMMA']
Metal Parts From Selective Laser Sintering of Metal-Polymer Powders
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c64bf3a6-31e0-4d3a-926e-23bb362bd674/download
null
null
null
null
null
null
null
null
['Michaels, Steven', 'Sachs, Emanuel M.', 'Cima, Michael J.']
2018-04-19T18:23:52Z
2018-04-19T18:23:52Z
1992
Mechanical Engineering
doi:10.15781/T2GT5FZ5X
http://hdl.handle.net/2152/64405
eng
1992 International Solid Freeform Fabrication Symposium
Open
['Three Dimensional Printing', 'rapid prototyping', '3DP']
Metal Parts Generation by Three Dimensional Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/08918ab7-33f2-4309-9250-3af3deab9645/download
null
null
null
null
null
null
null
null
['Knight, Ronald', 'Wright, Joseph', 'Beaman, Joseph', 'Freitag, Douglas']
2018-11-14T18:04:24Z
2018-11-14T18:04:24Z
1996
Mechanical Engineering
doi:10.15781/T22V2CW3Q
http://hdl.handle.net/2152/70255
eng
1996 International Solid Freeform Fabrication Symposium
Open
['SLS', '3D CAD', 'DTM']
Metal Processing Using Selective Laser Sintering and Hot Isostatic Pressing (SLSIHIP)
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1274daa5-78ec-420f-aaff-8c6a18ffdac2/download
null
In July of 1995 the Office of Naval Research (ONR) awarded a contract to Loral Vought Systems entitled Low Cost Metal Processing Using SLSIHIP. The two-phase, four-year program is co-sponsored by ONR and the Defense Advanced Research Projects Agency, DARPA. The program addresses the DoD and Navy need to improve the rep...
null
null
null
null
null
null
['Druschitz, A.P.', 'Cowden, S.', 'Dudley, A.', 'Walsh, S.', 'Weir, A.', 'Williams, C.B.', 'Wood, B.']
2021-11-01T21:16:36Z
2021-11-01T21:16:36Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89756
eng
2016 International Solid Freeform Fabrication Symposium
Open
['metal casting', '3D printed sand', 'mesostructure', 'ceramics', 'composites', 'encapsulation']
Metal-Ceramic Composite Lattice Structures Using 3D Printed Sand Molds and Cores
Conference paper
https://repositories.lib.utexas.edu//bitstreams/951a1e00-e10a-4968-9bac-11dfaf7d16c7/download
University of Texas at Austin
Binder Jetting of sand molds for metal casting provides a scalable and efficient means of fabricating large metal parts with complex geometric features made possible only by Additive Manufacturing. For example, in earlier work, the authors demonstrated the use of Binder Jetting to fabricate complex mold structures for ...
null
null
null
null
null
null
['Zhang, Xinchang', 'Cui, Wenyuan', 'Li, Wei', 'Liou, Frank']
2021-11-04T15:53:06Z
2021-11-04T15:53:06Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/89990', 'http://dx.doi.org/10.26153/tsw/16911']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['hybrid manufacturing', 'defect repair', 'laser metal deposition', 'reverse engineering']
Metallic Components Repair Strategies Using the Hybrid Manufacturing Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/45c19c9e-0f31-42c3-a1f7-ffc0bd723e6d/download
University of Texas at Austin
The hybrid manufacturing process which integrates additive manufacturing with subtractive machining is competitive and promising in component repair. To automate this process, detecting the missing volume and generating the deposition tracks is the key. In this study, strategies for repairing defects on flat and non-fl...
null
null
null
null
null
null
['Fulcher, Ben', 'Leigh, David K.']
2021-10-11T20:20:31Z
2021-10-11T20:20:31Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88627', 'http://dx.doi.org/10.26153/tsw/15561']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['Harvest Technologies', 'additive manufacturing', 'metal additive manufacturing', 'mechanical property characterization', 'geometrical production', 'aerosp', 'oil', 'aerospace']
Metals Additive Manufacturing Development at Harvest Technologies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d4fb68b1-a01b-4773-99a5-f7eabc20552a/download
University of Texas at Austin
Harvest Technologies received an EOS M280 in April of 2013 for the production of metal parts through additive manufacturing (AM). Inconel 718 was chosen as a starting material due to its high-end applications in the oil and aerospace industries. Two major areas are of high priority in understanding the machine: (1) mec...
null
null
null
null
null
null
['Tominski, J.', 'Lammers, S.', 'Wulf, C.', 'Zimmer, D.']
2021-11-08T23:37:44Z
2021-11-08T23:37:44Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90079', 'http://dx.doi.org/10.26153/tsw/17000']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['software-based design check', 'design check', 'complex structures', 'additive manufacturing', 'methodology']
Method for a Software-Based Design Check of Additively Manufactured Components
Conference paper
https://repositories.lib.utexas.edu//bitstreams/25bbb57c-8d73-47b4-bf26-60c99faa05aa/download
University of Texas at Austin
Additive manufacturing offers the potential to produce complex structures such as topology-optimized components or lattice structures. However, even these numerically generated structures are subject to manufacturing restrictions. Therefore, compliance with design rules has to be checked to ensure a robust production. ...
null
null
null
null
null
null
['Stiltner, L. Justin', 'Elliott, Amelia M.', 'Williams, Christopher B.']
2021-10-05T14:33:55Z
2021-10-05T14:33:55Z
8/17/11
Mechanical Engineering
null
['https://hdl.handle.net/2152/88380', 'http://dx.doi.org/10.26153/tsw/15319']
eng
2011 International Solid Freeform Fabrication Symposium
Open
['PolyJet™ process', '3D printing', 'actuated joints', 'fiber embedding']
A Method for Creating Actuated Joints via Fiber Embedding in a Polyjet 3D Printing Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/471968d5-567a-44a5-a1c6-f0dac641ec84/download
University of Texas at Austin
The Objet PolyJet direct 3D Printing process is capable of simultaneously depositing two distinct photopolymer materials in preset combinations to enable designers to create parts with graded material properties. For example, this dual-jet process offers designers the ability to combine elastomeric and rigid materials ...
null
null
null
null
null
null
['Elliott, A.M.', 'Nandwana, P.', 'Siddel, D.', 'Compton, B.G.']
2021-10-28T14:37:15Z
2021-10-28T14:37:15Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89652
eng
2016 International Solid Freeform Fabrication Symposium
Open
['powder bed density', 'binder-jet additive manufacturing', 'powder feedstock', 'shrinkage']
A Method for Measuring Powder Bed Density in Binder Jet Additive Manufacturing Process and the Powder Feedstock Characteristics Influencing the Powder Bed Density
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f413c638-27b9-490b-87bb-beca491ea6eb/download
University of Texas at Austin
Powder bed additive manufacturing involves layer-by-layer spreading of powders before melting, sintering or binding them. Traditionally apparent and tapped density measurements have been carried out to get an estimate of the powder bed density. Powder bed density is especially important in the case of binder-jet additi...
null
null
null
null
null
null
['Chen, Niechen', 'Frank, Matthew C.']
2021-11-04T13:55:24Z
2021-11-04T13:55:24Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89961
eng
2017 International Solid Freeform Fabrication Symposium
Open
['support structure', 'support removal', 'powder bed', 'metal additive manufacturing']
A Method for Metal AM Support Structure Design to Facilitate Removal
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8debb7ae-8cae-4db0-a2d5-f59e60743831/download
University of Texas at Austin
For powder bed metal additive manufacturing (AM), additional post-processing for support structure removal is required. However, this removal process is not formally considered during the design of support structures. Therefore, when either manual or CNC milling is required, some support structures may not be easily re...
null
null
null
null
null
null
['Auth, C.', 'Arndt, A.', 'Anderl, R.']
2021-11-08T22:18:38Z
2021-11-08T22:18:38Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90054', 'http://dx.doi.org/10.26153/tsw/16975']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['economic efficiency', 'additive manufacturing', 'conventional manufacturing', 'evaluation']
Method for the Evaluation of Economic Efficiency of Additive and Conventional Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f4288190-74fa-4206-83ce-77c5c1260775/download
University of Texas at Austin
The advantages of individuality and complexity for free are commonly known in the field of additive manufacturing, but, nevertheless, they compete with advantages of conventional manufacturing methods. On the one hand, a small size production can be economically viable through additive manufacturing. On the other hand,...
null
null
null
null
null
null
['Sassaman, D.', 'Phillips, T.', 'Beaman, J.', 'Milroy, C.', 'Ide, M.']
2021-12-07T17:56:42Z
2021-12-07T17:56:42Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90737', 'http://dx.doi.org/10.26153/tsw/17656']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['powder flowability', 'pre-screening', 'revolution powder analysis', 'machine learning', 'selective laser sintering']
A Method of Predicting Powder Flowability for Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/38f634a5-6744-4bd2-91e0-2a92f55bc319/download
University of Texas at Austin
This work investigates a method for pre-screening material systems for Selective Laser Sintering (SLS) using a combination of Revolution Powder Analysis (RPA) and machine learning. To develop this method, nylon was mixed with alumina or carbon fibers in different wt.% to form material systems with varying flowability. ...
null
null
null
null
null
null
['Hartman, Aja', 'Zhao, Lihua']
2024-03-26T21:32:02Z
2024-03-26T21:32:02Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124419', 'https://doi.org/10.26153/tsw/51027']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['multi jet fusion', 'MJF', '3D printing', 'thermals', 'additive manufacturing']
Method to Balance Thermals for Multi-functional 3D MJF Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9e8a3c44-059c-4227-ba2f-03e38c5da683/download
University of Texas at Austin
HP’s Multi Jet Fusion (MJF) is a powder-based additive manufacturing technology that selectively melts polymer powder, in a layer-by-layer fashion to create 3D parts. There are several different voxel properties that can be modulated using MJF including multi-color, ductility, conductivity, among others. Creating mecha...
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null
null
null
null
null