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['Rajeshirke, Mithila', 'Fidan, Ismail', 'Gupta, Ankit', 'Mäntyjärvi, Kari']
2023-01-20T14:22:44Z
2023-01-20T14:22:44Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117258', 'http://dx.doi.org/10.26153/tsw/44139']
eng
2022 International Solid Freeform Fabrication Symposium
Open
['FRAM', 'Tensile strength', 'Fatigue strength', 'ANOVA', 'Fatigue life']
Fatigue Analysis of Short Carbon Fiber Reinforced Composite Components Manufactured Using Fiber-Reinforced Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/285d2d87-1bc5-4175-84e9-50c0ec911f96/download
null
Fiber-reinforced additive manufacturing (FRAM) has become quite popular in several industries. The technology offers an opportunity to improve the existing mechanical performance of the part. This research study has presented a successful methodology to fabricate the FRAM- based composite parts with improved fatigue ...
null
null
null
null
null
null
['Johnson, Alexander S.', 'Shuai, Shao', 'Shamsaei, Nima', 'Thompson, Scott M.', 'Bian, Linkan']
2021-10-26T20:07:46Z
2021-10-26T20:07:46Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89572
eng
2016 International Solid Freeform Fabrication Symposium
Open
['fatigue', 'failure mechanisms', 'tensile behavior', 'microstructure', 'additive manufacturing', 'superalloys']
Fatigue Behavior and Failure Mechanisms of Direct Laser Deposited Inconel 718
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0e07b124-f008-4088-8bda-b5b02de0ab0e/download
University of Texas at Austin
null
null
null
null
null
null
null
['Lee, Seungjong', 'Pegues, Jonathan', 'Shamsaei, Nima']
2021-11-17T23:42:26Z
2021-11-17T23:42:26Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90357', 'http://dx.doi.org/10.26153/tsw/17278']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'laser beam powder bed fusion', 'LB-PBF', 'surface roughness', 'stainless steel', 'fatigue']
Fatigue Behavior of Additive Manufactured 304L Stainless Steel Including Surface Roughness Effects
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0804b9bc-dab5-45cb-9eec-49650e9a096f/download
University of Texas at Austin
The fatigue behavior of additive manufactured parts in the as-built surface condition is typically dominated by the surface roughness. However, the fatigue behavior of 304L stainless steel fabricated by laser beam powder bed fusion shows less sensitivity to surface roughness under strain-controlled loading conditions t...
null
null
null
null
null
null
['Uhlmann, Eckart', 'Gerlitzky, Georg', 'Fleck, Claudia']
2021-11-02T13:39:54Z
2021-11-02T13:39:54Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89799
eng
2017 International Solid Freeform Fabrication Symposium
Open
['fatigue life', 'post process', 'process chain', 'metal-based additive manufacturing']
Fatigue Behavior of Additive Manufactured Parts in Different Process Chains - An Experimental Study
Conference paper
https://repositories.lib.utexas.edu//bitstreams/54cd37ae-ad55-48db-945d-2829809ecce9/download
University of Texas at Austin
Metal based Additive Manufacturing (AM) has experienced dynamic growth in recent years. However, the global distribution of Additive Manufacturing is limited by the fact the produced parts suffer from bad surface quality and the material properties concerning fatigue life are still an object of current investigations w...
null
null
null
null
null
null
['Johnson, Alexander S.', 'Shrestha, Rakish', 'Nezhadfar, P.D.', 'Shamsaei, Nima']
2021-11-18T00:38:01Z
2021-11-18T00:38:01Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90374', 'http://dx.doi.org/10.26153/tsw/17295']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['Inconel 718', 'fatigue', 'elevated temperature', 'laser beam directed energy deposition']
Fatigue Behavior of Laser Beam Directed Energy Deposited Inconel 718 at Elevated Temperature
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6fcda701-4f8f-48ff-a746-18e22ac24b1b/download
University of Texas at Austin
Nickle based super alloys such as Inconel 718 are being extensively used to manufacture turbine blades for jet engines due to their superior mechanical properties at higher working temperatures. Furthermore, poor machinability associated with Inconel 718 also makes it an attractive material for additive manufacturing p...
null
null
null
null
null
null
['Carrion, Patricio', 'Shamsaei, Nima']
2021-11-18T00:58:47Z
2021-11-18T00:58:47Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90381', 'http://dx.doi.org/10.26153/tsw/17302']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'mean stress', 'variable amplitude', "miner's rule", 'titanium']
Fatigue Behavior of LB-PBF Ti-6Al-4V Parts Under Mean Stress and Variable Amplitude Loading Conditions
Conference paper
https://repositories.lib.utexas.edu//bitstreams/44d53d03-ea13-46b4-9642-a74e24622f69/download
University of Texas at Austin
Additively manufactured components are intended for use in load bearing applications, which are often accompanied by fluctuating external loadings. Therefore, understanding the fatigue behavior of AM materials under variable amplitude loadings is necessary for ensuring reliable in-service component performance. This re...
null
null
null
null
null
null
['Yadollahi, Aref', 'Shamsaei, Nima', 'Thompson, Scott M.', 'Elwany, Alaa', 'Bian, Linkan', 'Mahmoudi, Mohamad']
2021-10-20T22:02:17Z
2021-10-20T22:02:17Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89373
eng
2015 International Solid Freeform Fabrication Symposium
Open
['Selective Laser Melting', '17-4PH stainless steel', 'fatigue behavior', 'tensile properties']
Fatigue Behavior of Selective Laser Melted 17-4 PH Stainless Steel
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7759ce43-d354-42ad-8d58-61da5b0fe719/download
University of Texas at Austin
In this investigation, fully-reversed strain-controlled fatigue tests were conducted on Selective Laser Melted (SLM) 17-4 PH stainless steel (SS). Cylindrical 17-4 PH rods were fabricated vertically-upward using optimized process parameters to ensure a dense product. Post-fabrication heat treatments (solution annealing...
null
null
null
null
null
null
['Moore, Jacob P.', 'Williams, Christopher B.']
2021-10-06T21:03:53Z
2021-10-06T21:03:53Z
8/20/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88442', 'http://dx.doi.org/10.26153/tsw/15379']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['direct 3D printing', 'Objet PolyJet', 'elastomer', 'fatigue']
Fatigue Characterization of 3D Printed Elastomer Material
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6fdb60f4-bafe-4c3c-8e90-72f3fd350821/download
University of Texas at Austin
The Objet PolyJet 3D Printing process provides the ability to print graded materials featuring both stiff and elastomeric polymers. This capability allows for a variety of new design possibilities for additive manufacturing such as living hinges, shock absorbing casings, and integrated gaskets. Such design features typ...
null
null
null
null
null
null
['Wolcott, P.J.', 'Dapino, M.J.']
2021-10-05T19:57:23Z
2021-10-05T19:57:23Z
2012
Mechanical Engineering
null
['https://hdl.handle.net/2152/88422', 'http://dx.doi.org/10.26153/tsw/15361']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['ultrasonic additive manufacturing', 'aluminum 3003 H-18', 'tensile fatigue', 'bond failure']
Fatigue Characterization of Ultrasonic Additive Manufactured Aluminum 3003
Conference paper
https://repositories.lib.utexas.edu//bitstreams/494db52f-16cb-4297-8fd1-5fdbde944506/download
University of Texas at Austin
An aluminum 3003 H-18 block was built using ultrasonic additive manufacturing with process parameters which optimize mechanical strength. Transverse tensile fatigue tests were conducted on samples cut from the block and a stress vs. number of cycles curve was generated. Results show the curve is relatively flat and a s...
null
null
null
null
null
null
['Banuelos, C.', 'Ramirez, B.', 'De la Cruz, A.', 'Nabil, S.T.', 'Arrieta, E.G.', 'Wicker, R.B.', 'Medina, F.']
2024-03-27T15:39:16Z
2024-03-27T15:39:16Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124484', 'https://doi.org/10.26153/tsw/51092']
en
2023 International Solid Freeform Fabrication Symposium
Open
['laser powder bed fusion', 'flexural stress', 'fatigue endurance', 'additive manufacturing', 'post-processed parts']
Fatigue Endurance Investigation of Post-processed Surfaces of LPBF Ti-6Al-4V under Flexural Stress
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4e35cf89-7e91-42c7-bb7d-a9473d360952/download
University of Texas at Austin
Numerous research works can be found focusing on fatigue properties of AM components, however most of this literature is focused on uniaxial testing. Because the very few actual components under uniaxial loading conditions found in any application, it is also important to investigate fatigue performance under loads tha...
null
null
null
null
null
null
['Muhammad, Muztahid', 'Carrion, Patricio E.', 'Shamsaei, Nima']
2021-11-18T00:14:56Z
2021-11-18T00:14:56Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90366', 'http://dx.doi.org/10.26153/tsw/17287']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'defect size', 'NASGRO', 'fatigue life prediction']
Fatigue Life Prediction of Additive Manufactured Materials Using a Defect Sensitive Model
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5f03c739-314e-4362-8319-8045ff47a0a1/download
University of Texas at Austin
This study utilized a defect sensitive fatigue model based on a fracture mechanics concept to predict the fatigue life of 17-4 precipitation hardening (PH) stainless steel (SS) fabricated using laser beam powder bed fusion (LB-PBF) process. Size of defects such as gas entrapped pores are captured using fractography ana...
null
null
null
null
null
null
['Torries, Brian', 'Shrestha, Rakish', 'Imandoust, Aidin', 'Shamsaei, Nima']
2021-11-10T22:41:22Z
2021-11-10T22:41:22Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90196', 'http://dx.doi.org/10.26153/tsw/17117']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'defects', 'fracture mechanics', 'fatigue modeling']
Fatigue Life Prediction of Additively Manufactured Metallic Materials Using a Fracture Mechanics Approach
Conference paper
https://repositories.lib.utexas.edu//bitstreams/fa317e2b-332f-4914-b109-1ce9bf808c8e/download
University of Texas at Austin
The present study aims to model the fatigue strength of additively manufactured metallic materials employing a fracture mechanics approach. Specimens with different build orientations were subjected to strain controlled fatigue testing. Upon failure, the defect(s) responsible for crack initiation were identified by fra...
null
null
null
null
null
null
['Alkunte, Suhas', 'Rajeshirke, Mithila', 'Huseynov, Orkhan', 'Fidan, Ismail']
2024-03-25T22:12:46Z
2024-03-25T22:12:46Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124315', 'https://doi.org/10.26153/tsw/50923']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['fatigue life', 'fatigue prediction', "Basquin's Model", 'S-N curve', 'FGAM']
Fatigue Life Prediction of Functionally Graded TPU and PLA Components Produced by Material Extrusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f39fb836-c0f7-432b-b6c9-1e37ae7a7fc5/download
University of Texas at Austin
The objective of the present research is to examine the fatigue life estimation of functionally graded additive manufacturing (FGAM) components produced by the Material Extrusion (MEX). Current research studies demonstrate the potential of functionally graded materials (FGMs) in enhancing the mechanical properties of e...
null
null
null
null
null
null
['Maskery, I.', 'Aboulkhair, N.T.', 'Tuck, C.', 'Wildman, R.D.', 'Ashcroft, I.A.', 'Everitt, N.M.', 'Hague, R.J.M.']
2021-10-21T15:31:05Z
2021-10-21T15:31:05Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89397
eng
2015 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'aluminum alloy', 'AlSi10Mg', 'stress-strain', 'fatigue performance']
Fatigue Performance Enhancement of Selectively Laser Melted Aluminum Alloy by Heat Treatment
Conference paper
https://repositories.lib.utexas.edu//bitstreams/60d145ef-ca57-44b9-a051-7e5031161e7c/download
University of Texas at Austin
We measured the stress-strain behaviour and fatigue performance of the aluminium alloy Al-Si10-Mg manufactured by selective laser melting (SLM). This process, specifically the rapid cooling of the metal from its molten state, results in a fine microstructure, generally providing high hardness but poor ductility. We use...
null
null
null
null
null
null
['Beard, William', 'Lancaster, Robert', 'Adams, Jack', 'Buller, Dane']
2021-11-30T21:02:08Z
2021-11-30T21:02:08Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90547', 'http://dx.doi.org/10.26153/tsw/17466']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'laser powder bed fusion', 'stainless steel 316L', 'low cycle fatigue']
Fatigue Performance of Additively Manufactured Stainless Steel 316L for Nuclear Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cf0efc07-11af-49f6-ae85-5d40e7edfdf8/download
University of Texas at Austin
Additive manufacturing (AM) is a rapidly growing technology which is extending its influence into many industrial sectors such as aerospace, automotive and marine. Recently the nuclear sector has considered AM in the production of nuclear reactor components due to its possible advantages over conventional manufacturing...
null
null
null
null
null
null
['Raju, Nandhini', 'Rosen, David W.']
2021-12-06T21:56:06Z
2021-12-06T21:56:06Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90687', 'http://dx.doi.org/10.26153/tsw/17606']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['maraging steel', 'fatigue properties', 'powder bed fusion', '3D printing']
Fatigue Properties of 3D Printed Maraging Steel
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3475c52c-f599-473b-b3cf-da9f056abce5/download
University of Texas at Austin
The objective of this paper is to investigate fatigue properties of maraging steel, in the fabricated, machined, and heat-treated conditions, printed by powder bed fusion. Samples were manufactured in an EOS M280 machine in the X and Z build directions. Manufactured samples were tested under four different conditions: ...
null
null
null
null
null
null
['Nandi, Indrajit', 'Welsh, Jade', 'Simsiriwong, Jutima', 'Shao, Shuai', 'Shamsaei, Nima']
2023-01-25T14:18:50Z
2023-01-25T14:18:50Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117288', 'http://dx.doi.org/10.26153/tsw/44169']
eng
2022 International Solid Freeform Fabrication Symposium
Open
['Murakami’s model', 'Laser powder bed fusion', 'Very high cycle fatigue', '17-4 precipitation hardened stainless steel']
Fatigue strength prediction through defects-based analysis of L-PBF 17-4 PH stainless steel
Conference paper
https://repositories.lib.utexas.edu//bitstreams/dae40d16-6c9d-4a73-8c23-cf0c3569c096/download
null
Murakami’s approach has been used in the high cycle fatigue regime to relate the fatigue limit to the critical defect size and location in additively manufactured (AM) metallic materials. However, the applicability of this model has not yet been thoroughly examined for AM materials in the very high cycle fatigue (VH...
null
null
null
null
null
null
['Blake, Paul', 'Fodran, Eric', 'Koch, Martin', 'Menon, Unny', 'Priedeman, Bill', 'Sharp, Stephen']
2018-11-29T20:48:37Z
2018-11-29T20:48:37Z
1997
Mechanical Engineering
doi:10.15781/T20863R44
http://hdl.handle.net/2152/70342
eng
1997 International Solid Freeform Fabrication Symposium
Open
['CAD/CAM', 'Acrylinitrile']
FDM of ABS Patterns for Investment Casting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/886b8233-e841-48a3-b9f8-fe82042fc79e/download
null
This paper will evaluate the suitability offused deposition modeling (FDM) of acrylonitrile butadiene styrene (ABS) patterns for use in investment casting. The focus is on integration with existing foundry practices. It is a combined industry/university project with the case studies performed at the industrial sites wi...
null
null
null
null
null
null
['Tyberg, Justin', 'Bohn, Jan HeIge']
2019-02-22T20:07:12Z
2019-02-22T20:07:12Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73472', 'http://dx.doi.org/10.26153/tsw/622']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['slicing techniques', 'smooth-surface']
FDM Systems and Local Adaptive Slicing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7d59c69e-76f9-435e-933a-2cca3358d330/download
null
null
null
null
null
null
null
null
['Comb, James', 'Priedeman, William', 'Turley, Patrick W.']
2018-09-26T19:33:12Z
2018-09-26T19:33:12Z
1994
Mechanical Engineering
doi:10.15781/T25X25Z09
http://hdl.handle.net/2152/68588
eng
1994 International Solid Freeform Fabrication Symposium
Open
['Rapid prototyping', 'deposition geometry', 'fused modeling process']
FDM® Technology Process Improvements
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e34f58b0-2a7e-44b8-b992-6fc940ea3081/download
null
Since the introduction ofrapid prototyping technology as a tool for time compression and concurrent engineering in the design and manufacturing process, many enhancements and refinements have been made based on the experience of users and manufacturers of rapid prototyping equipment. These improvements contribute signi...
null
null
null
null
null
null
['Reiher, Thomas', 'Koch, Rainer']
2021-10-21T16:55:13Z
2021-10-21T16:55:13Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89404
eng
2015 International Solid Freeform Fabrication Symposium
Open
['Additive Manufacturing', 'FE-optimization', 'topology optimization', 'structural parts']
FE-Optimization and Data Handling for Additive Manufacturing of Structural Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f27cb4cd-8ada-4415-ac2c-815bb07d4110/download
University of Texas at Austin
Additive Manufacturing (AM) offers high potential due to its freedom of design for structural parts. Especially in combination with FE-based topology optimization an optimal use of material and thus significant weight reductions can be expected. However, the application of AM is hampered by different additional manufac...
null
null
null
null
null
null
['Masuo, Christopher', 'Nycz, Andrzej', 'Noakes, Mark W.', 'Vaughan, Derek', 'Sridharan, Niyanth']
2021-11-18T01:09:58Z
2021-11-18T01:09:58Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90385', 'http://dx.doi.org/10.26153/tsw/17306']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['wire arc additive manufacturing', 'maraging steel', 'high-strength tooling', 'feasibility', 'single bead welds', 'metal big area additive manufacturing', 'mBAAM']
Feasibility Analysis of Utilizing Maraging Steel in a Wire Arc Additive Process for High-Strength Tooling Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/61b79a38-98c1-429c-92f3-4c42b5ed1443/download
University of Texas at Austin
Traditional tool and die development require skilled labor, long lead time, and is highly expensive to produce. Metal Big Area Additive Manufacturing (mBAAM) is a wire-arc additive process that utilizes a metal inert gas (MIG) welding robot to print large-scale parts layer-by-layer. By using mBAAM, tooling can be manuf...
null
null
null
null
null
null
['Wu, Guohua', 'Langrana, Noshir', 'Rangarajan, Sriram', 'Sadangi, Rajendra', 'Safari, Amhad', 'Danforth, Stephen C.']
2019-02-26T16:56:37Z
2019-02-26T16:56:37Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73486', 'http://dx.doi.org/10.26153/tsw/636']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['Rapid Prototyping', 'RTV mold']
Feasibility of Fabricating Metal Parts from 17-4PH Stainless Steel Powder
Conference paper
https://repositories.lib.utexas.edu//bitstreams/96e22285-2ffc-4ad6-a985-84046e9907b4/download
null
17-4 PH stainless steel is known to provide an attractive combination of high strength and corrosion resistance. In this research, the feasibility of SFF fabrication of high density parts using PH powder is examined. A part can be fabricated using both indirect and direct methods. The indirect method includes making a ...
null
null
null
null
null
null
['Jonckers, D.', 'Tauscher, O.', 'Stoll, E.', 'Thakur, A.']
2021-12-07T18:12:33Z
2021-12-07T18:12:33Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90744', 'http://dx.doi.org/10.26153/tsw/17663']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['feasibility', 'on-orbit additive manufacturing', 'large-scale freeforming', '3D printing']
Feasibility Study of Large-Format, Freeform 3D Printing for On-Orbit Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b3cf0d04-1cce-4f05-9126-d302b3e441a7/download
University of Texas at Austin
Large scale, on-orbit additive manufacturing (AM) and assembly is being considered as a modular and resource saving approach to facilitate permanent human presence in space. To realise this, a novel AM approach to freeform fabricate large, functional structures in space has been developed. Combining the reach of a free...
null
null
null
null
null
null
['Yamagata, Y.', 'Sagawa, T.', 'Nitawaki, M.', 'Abe, T.']
2023-04-03T17:39:49Z
2023-04-03T17:39:49Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117726', 'http://dx.doi.org/10.26153/tsw/44605']
eng
2022 International Solid Freeform Fabrication Symposium
Open
Additive manufacturing
Feasibility Study of Large-Sized Aluminum Facades by Using Wire Arc Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1015a1a7-9e25-45b8-9d85-7bb15b26866f/download
null
Over the past few years, there has been growing interest in the fabrication of construction components by using wire arc additive manufacturing (WAAM). We focused on the finishing materials as a potential application for WAAM and began to consider fabricating aluminum building facades. However, there are several issu...
null
null
null
null
null
null
['Cunico, Marlon Wesley Machado', 'de Carvalho, Jonas']
2021-10-21T20:34:37Z
2021-10-21T20:34:37Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89440
eng
2015 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'medium scale projection', 'network production', 'flexible manufacturing systems']
Feasibility Study of Small Scale Production Based on Additive Manufacturing Technologies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b10e15b1-f590-476a-8191-ceeabc039d81/download
University of Texas at Austin
Along the last years, the complexity of products has been growing progressively, while the product development life-cycle tended to be reduced. In addition to that, additive manufacturing technologies increased their role in the product development process, resulting in reduction of errors and products release time. In...
null
null
null
null
null
null
['Niino, Toshiki', 'Haraguchi, Hisashi', 'Itagaki, Yutaro']
2021-10-04T20:14:18Z
2021-10-04T20:14:18Z
8/17/11
Mechanical Engineering
null
['https://hdl.handle.net/2152/88335', 'http://dx.doi.org/10.26153/tsw/15274']
eng
2011 International Solid Freeform Fabrication Symposium
Open
['plastic laser sintering', 'powder bed heating', 'powder bed preheating', 'energy consumption']
Feasibility Study on Plastic Laser Sintering without Powder Bed Preheating
Conference paper
https://repositories.lib.utexas.edu//bitstreams/13320ce2-98ac-43c6-8149-48d73e04d9e4/download
University of Texas at Austin
In a plastic laser sintering machine, the most part of power consumption is spent on heating of powder bed. The powder bed heating is essential to prevent parts from warping during the process. However metal laser melting is normally performed without such heating. During the process, warping is suppressed by fixing th...
null
null
null
null
null
null
['Tata, Kamesh', 'Fadel, Georges']
2018-11-16T16:22:39Z
2018-11-16T16:22:39Z
1996
Mechanical Engineering
doi:10.15781/T2959CT47
http://hdl.handle.net/2152/70294
eng
1996 International Solid Freeform Fabrication Symposium
Open
['3D systems', 'STL model representation', 'CAD']
Feature Extraction From Tessellated And Sliced Data in Layered Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1c4a1164-a593-4afd-b38e-ce96111610a4/download
null
When parts are built in layers, the cross sectional area of each layer has to be defined and filled with a pattern of vectors. This filling process is called hatching and the vectors defme the hatch pattern. To accurately reproduce a three dimensional object, key features need to be identified. In particular, top and b...
null
null
null
null
null
null
['Qian, Xiaoping', 'Dutta, Debasish']
2019-03-01T17:30:58Z
2019-03-01T17:30:58Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73515', 'http://dx.doi.org/10.26153/tsw/665']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['LM', 'conductivity']
Features in Layered Manufacturing of Heterogeneous Objects
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d490a248-d8b7-4fe4-9e39-6fe7f262caf4/download
null
The usage of features in computer aided design and manufacturing has increased significantly over the last decade. By and large, all such features are geometric (form features). In this paper, we shall discuss the need to go beyond current geometric features and consider material -- composition, and gradation -- within...
null
null
null
null
null
null
['Abdelrarhman, Mostafa', 'Starr, Thomas L.']
2021-10-20T20:23:35Z
2021-10-20T20:23:35Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89353
eng
2015 International Solid Freeform Fabrication Symposium
Open
['polymer laser sintering', 'feed-forward control', 'part geometry', 'temperature history']
Feedforward Control for Polymer Laser Sintering Process Using Part Geometry
Conference paper
https://repositories.lib.utexas.edu//bitstreams/19f38e5b-64f6-445d-9e30-42fbd05b62cc/download
University of Texas at Austin
For the polymer laser sintering process, achieving optimum mechanical properties requires that every volume element of a part experience a temperature history sufficient to reach full density. This history must include a peak temperature high enough to fully melt, but not degrade, the polymer and a cool-down period tha...
null
null
null
null
null
null
O'Reilly, Sean B.
2018-05-03T18:34:09Z
2018-05-03T18:34:09Z
1993
Mechanical Engineering
doi:10.15781/T2PV6BQ73
http://hdl.handle.net/2152/65055
eng
1993 International Solid Freeform Fabrication Symposium
Open
['FFF lab', 'Alpha Manufacturing Development Center', '3D Solid Model', 'stereolithography']
FFF at Ford Motor Company
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ac3c8f59-cc5a-4831-815e-cccad71f56e2/download
null
Ford's effort in Free Fonn Fabrication (FFF) began in 1987 with the fontation of an internal consortium, Calp)sed of a dozen different activities, whose purpose was to evaluate and apply, where possible, this errerging tecl:mology. Each of the consortium members agreed to contribute sare rroney and, rrore irrportantly,...
null
null
null
null
null
null
['Xia, B.', 'Saari, M.', 'Cox, B.', 'Richer, E.', 'Krueger, P.S.', 'Cohen, A.L.']
2021-10-28T19:35:20Z
2021-10-28T19:35:20Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89678
eng
2016 International Solid Freeform Fabrication Symposium
Open
['Fiber Encapsulation Additive Manufacturing', 'electrical junctions', 'material fabrication']
Fiber Encapsulation Additive Manufacturing: Materials for Electrical Junction Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/de90e005-8c70-4da9-a523-c8bfb1c189cd/download
University of Texas at Austin
Fiber Encapsulation Additive Manufacturing (FEAM) is a novel 3-D printing process that permits the printing of electromechanical and electronic devices within a single, affordable machine. A key challenge of FEAM is creating robust and reliable electrical junctions between encapsulated wires, enabling more complex devi...
null
null
null
null
null
null
['Wang, Xin', 'Tian, Xiaoyong', 'Li, Dichen']
2021-11-15T22:14:32Z
2021-11-15T22:14:32Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90290', 'http://dx.doi.org/10.26153/tsw/17211']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['metal matrix composite', '3D printing', 'additive manufacturing']
Fiber Traction Printing--A Novel Additive Manufacturing Process of Continuous Fiber Reinforced Metal Matrix Composite
Conference paper
https://repositories.lib.utexas.edu//bitstreams/55eb840c-a3d6-41ab-8fd6-1bb19116bc0a/download
University of Texas at Austin
Metal matrix composites (MMCs) are materials which have been widely used in the aerospace and automobile industries since the 1980s and have been classified as hard-to machine materials. This manuscript proposes a novel additive manufacturing process of continuous fiber reinforced metal matrix composite -- fiber tracti...
null
null
null
null
null
null
['Hostetler, John M.', 'Goldstein, Jonathan T.', 'Bristow, Douglas', 'Landers, Robert', 'Kinzel, Edward C.']
2021-11-04T14:18:14Z
2021-11-04T14:18:14Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89967
eng
2017 International Solid Freeform Fabrication Symposium
Open
['glass fiber', 'transparent glass', 'fiber-fed process', 'laser-heated process', '3D printing', 'additive manufacturing']
Fiber-Fed Laser-Heated Process for Printing Transparent Glass
Conference paper
https://repositories.lib.utexas.edu//bitstreams/51fe27f9-7d60-4bb4-b79c-6f368016c9d2/download
University of Texas at Austin
This paper presents the Additive Manufacturing (AM) of glass using a fiber-fed process. Glass fiber with a diameter of 100 μm is fed into a laser generated melt pool. A CO2 laser beam is focused on the intersection between the fiber and the work piece which is positioned on a four-axis computer controlled stage. The la...
null
null
null
null
null
null
['Hostetler, John M.', 'Johnson, Jason E.', 'Goldstein, Jonathan T.', 'Bristow, Douglas', 'Landers, Robert', 'Kinzel, Edward C.']
2021-11-10T21:25:06Z
2021-11-10T21:25:06Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90180', 'http://dx.doi.org/10.26153/tsw/17101']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['glass fiber', 'glass structure', 'printing', 'additive manufacturing']
Fiber-Fed Printing of Free-Form Free-Standing Glass Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b7419e91-76f3-4873-9de9-cff9bcf2332b/download
University of Texas at Austin
Additive Manufacturing (AM) of low-profile 2.5D glass structures has been demonstrated using a fiber-fed laser-heated process. In this process, glass fibers with diameters 90-125 µm are supported as they are fed into the intersection of the workpiece and a CO2 laser beam. The workpiece is positioned by a four-axis CNC ...
null
null
null
null
null
null
['Angenoorth, J.', 'Rumschottel, D.', 'Leitner, B.', 'Schumm, V.', 'Ettemeyer, F.', 'Unsal, I.', 'Gunther, D.']
2024-03-27T03:14:06Z
2024-03-27T03:14:06Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124459', 'https://doi.org/10.26153/tsw/51067']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['reinforced sand', 'binder jetting', '3D printing', 'additive manufacturing']
Fiber-Reinforcement of Binder-Jetted Casting Molds for Multiple Usag
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d5923ff4-5302-4e91-b033-c990c0ef22f1/download
University of Texas at Austin
Widely used sand casting with lost molds is an efficient and cost-effective way of producing geometrically complex components. As the demand for sand has tripled over the last two decades, finding new solutions for thermostable binder systems and ensuring the efficient use of resources is essential. To address this iss...
null
null
null
null
null
null
['Chesser, Phillip C.', 'Post, Brian K.', 'Roschli, Alex', 'Lind, Randall F.', 'Boulger, Alex M.', 'Love, Lonnie J.', 'Gaul, Katherine T.']
2021-11-15T21:27:50Z
2021-11-15T21:27:50Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90279', 'http://dx.doi.org/10.26153/tsw/17200']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['fieldable platform', 'concrete structure', 'large-scale deposition', 'sky big area additive manufacturing', 'SkyBAAM']
Fieldable Platform for Large-Scale Deposition of Concrete Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/60b25c19-7f43-4dd1-a8fb-027c072fd44f/download
University of Texas at Austin
Oak Ridge National Laboratory’s Manufacturing Demonstration Facility is developing a novel, large-scale additive manufacturing, or 3D printing, system. The Sky Big Area Additive Manufacturing (SkyBAAM) system will ultimately be a fieldable concrete deposition machine with pick and place abilities that will allow for fu...
null
null
null
null
null
null
['Agarwala, M.K.', 'Weeren, R. van', 'Bandyopadhyay, A.', 'Safari, A.', 'Danforth, S.C.', 'Priedeman, W.R.']
2018-11-15T20:31:27Z
2018-11-15T20:31:27Z
1996
Mechanical Engineering
doi:10.15781/T2GX45D8J
http://hdl.handle.net/2152/70277
eng
1996 International Solid Freeform Fabrication Symposium
Open
['SFF', 'powder systems', 'binder chemistry']
Filament Feed Materials for Fused Deposition Processing of Ceramics and Metals
Conference paper
https://repositories.lib.utexas.edu//bitstreams/37e144f9-ec03-41ee-a0e8-ba8e2dd28403/download
null
Fused Deposition of Ceramics (FDC) and Metals (FDMet) are SFF techniques, based on commercial FDMTM technology, for fabrication of ceramic and metal components. The FD processes use feed material in the form of filaments which require certain phy~ical and mechanical properties. FDC and FDMet processes employ fila.n::en...
null
null
null
null
null
null
['Mulholland, T.', 'Falke, A.', 'Rudolph, N.']
2021-10-27T22:52:06Z
2021-10-27T22:52:06Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89639
eng
2016 International Solid Freeform Fabrication Symposium
Open
['3D printing', 'FFF', 'thermal conductivity']
Filled Thermoconductive Plastics for Fused Filament Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/42bbe9eb-09b4-4b11-b151-fff760d4e86a/download
University of Texas at Austin
Although thermoplastics have traditionally been ignored as heat transfer materials, filled thermally conductive plastics fabricated in complex geometries can serve as low-cost, geometrically complicated heat exchangers, along with other thermal applications such as heat sinks. Thermally conductive, 3D printed heat exch...
null
null
null
null
null
null
['Jariwala, Amit S.', 'Ding, Fei', 'Zhao, Xiayun', 'Rosen, David W.']
2020-03-11T15:10:39Z
2020-03-11T15:10:39Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/80247', 'http://dx.doi.org/10.26153/tsw/7266']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['Mask Projection Micro-Stereolithography', 'MPµSLA']
A Film Fabrication Process on Transparent Substrate using Mask Projection Micro-Stereolithography
Conference paper
https://repositories.lib.utexas.edu//bitstreams/85303b7b-1ba1-490b-8b94-93d944490617/download
null
In this study, a Mask Projection Micro-Stereolithography (MPµSLA) process with the ability to cure a film of various thicknesses on transparent substrates is presented. Incident radiation, patterned by a dynamic mask, passes through a transparent substrate to cure photopolymer resin layers that grow progressively from ...
null
null
null
null
null
null
['Fischer, M.', 'Schöppner, V.']
2021-10-18T20:32:46Z
2021-10-18T20:32:46Z
2014
Mechanical Engineering
null
https://hdl.handle.net/2152/89236
eng
2014 International Solid Freeform Fabrication Symposium
Open
['Fused Deposition Modeling', 'ABS-M30', 'mass finishing', 'dimensional accuracy']
Finishing of ABS-M30 Parts Manufactured with Fused Deposition Modeling with Focus on Dimensional Accuracy
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c5eacedd-961c-45c3-9fd7-4df85790cb77/download
University of Texas at Austin
Fused Deposition Modeling (FDM) parts are prone to process-related rough and wavy surfaces with stair-stepping effects whenever the parts produced have sloped or rounded geometries. These stair-stepping effects can be reduced by using a smaller slice height, but complete elimination is not possible. In this paper, FDM ...
null
null
null
null
null
null
['Wang, Xuanping', 'Li, Shichong', 'Fu, Youzhi', 'Gao, Hang']
2021-11-01T22:55:10Z
2021-11-01T22:55:10Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89791
eng
2016 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'abrasive flow machining', 'polishing', 'complex structure']
Finishing of Additively Manufactured Metal Parts by Abrasive Flow Machining
Conference paper
https://repositories.lib.utexas.edu//bitstreams/dc9c15f4-a8a8-44dd-971b-447020456161/download
University of Texas at Austin
Surface finishing is still a crucial challenge in metal Additive Manufacturing (AM) as the as-built surface roughness is difficult to fulfill service requirements, due to staircase effect, balling effect inherent to AM. Abrasive flow machining (AFM) is a non-conventional finishing technique that offers better accuracy ...
null
null
null
null
null
null
['Schmid, M.', 'Simon, C.', 'Levy, G.N.']
2021-09-28T18:07:44Z
2021-09-28T18:07:44Z
9/15/09
Mechanical Engineering
null
['https://hdl.handle.net/2152/88140', 'http://dx.doi.org/10.26153/tsw/15081']
eng
2009 International Solid Freeform Fabrication Symposium
Open
['plastic part coating', 'Selective Laser Sintering', 'Rapid Manufacturing']
Finishing of SLS-Parts for Rapid Manufacturing (RM) - A Comprehensive Approach
Conference paper
https://repositories.lib.utexas.edu//bitstreams/abce9469-027d-4b12-8eb8-b572c0fbdaca/download
University of Texas at Austin
Plastic parts are often coated to fulfill the desired functional requirements during product life. This may be for decorative purposes only, but also for functions such as improved tribology, wear and humidity resistance, UV- and light stability, hygienic and biofilm resistance. Moving SLS towards Rapid Manufacturin...
null
null
null
null
null
null
['Reeves, P.E.', 'Cobb, R.C']
2018-10-05T16:45:43Z
2018-10-05T16:45:43Z
1995
Mechanical Engineering
doi:10.15781/T27W67R07
http://hdl.handle.net/2152/68714
eng
1995 International Solid Freeform Fabrication Symposium
Open
['stereolithography', 'model geometry', 'Rapid prototyping']
The Finishing of Stereolithography Models Using Resin Based Coatings
Conference paper
https://repositories.lib.utexas.edu//bitstreams/96f427a1-82d7-4fab-b04d-c77501c691e7/download
null
The use of StereoLithography (SL) can produce accurate prototype models with complex internal and external features. However, a major problem to commercial use is the poor surface finish caused mainly by 'stair stepping' which is inherent in layer manufacturing. Models are often finished by hand but this is labour inte...
null
null
null
null
null
null
['Hague, Richard', 'Dickens, Phill']
2018-11-16T15:13:19Z
2018-11-16T15:13:19Z
1996
Mechanical Engineering
doi:10.15781/T2FX74J0W
http://hdl.handle.net/2152/70285
eng
1996 International Solid Freeform Fabrication Symposium
Open
['SL models', 'Quickcast', 'autoclaving']
Finite Element Analysis and Strain Gauging of the Stereolithography/Investment Casting System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/fe26733f-841c-441a-958e-d15cc416f93e/download
null
Many metal parts have been produced from stereolithography (SL) models via the investment casting route. However, it is still not possible for every foundry to directly use SL models as thermally expendable patterns and gain the same success as achieved with wax patterns. Significant drawbacks still exist with the Quic...
null
null
null
null
null
null
['Dalgarno, K.W.', 'Childs, T.R.C.', 'Rowntree, I.', 'Rothwell, L.']
2018-11-16T15:54:43Z
2018-11-16T15:54:43Z
1996
Mechanical Engineering
doi:10.15781/T2PG1J764
http://hdl.handle.net/2152/70291
eng
1996 International Solid Freeform Fabrication Symposium
Open
['SLS process', 'analytical procedures', 'rectangular polycarbonate']
Finite Element Analysis of Curl Development in the Selective Laser Sintering Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9d3650a1-3df4-41f9-859b-792e028def2e/download
null
The work reported within this paper is concerned with the development of analytical procedures which will allow the accuracy of parts generated by selective laser sintering to be predicted. One source of inaccuracy is curl, which results in curved part edges of flat plates manufactured lying horizontally in the part be...
null
null
null
null
null
null
['Jiang, Wei', 'Dalgarno, K.W.']
2019-10-24T17:37:30Z
2019-10-24T17:37:30Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/77403', 'http://dx.doi.org/10.26153/tsw/4492']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Deformations
Finite Element Analysis of Residual Stresses and Deformations in Direct Metal SLS Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/72ce74ae-69a8-4f14-8364-9c8b18d57b56/download
null
Direct metal SLS processes use a high power laser beam to selectively fuse fully metallic powder to directly produce functional metal components or tooling. As a thermal dynamic process, it inevitably causes thermal stresses, stress-induced deformations and cracking. Understanding these is very important in controlling...
WEI JIANG gratefully acknowledge financial support from the China Scholarship Council under Grants 99821129 and National Science Foundation of China under Grants 59935110.
null
null
null
null
null
['Dai, K.', 'Crocker, J.', 'Shaw, L.', 'Marcus, H.']
2019-09-23T16:45:26Z
2019-09-23T16:45:26Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75965', 'http://dx.doi.org/10.26153/tsw/3064']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Element
Finite Element Analysis of the SALDVI Process 393
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a35ff381-3585-41a6-9e6f-b910e6be98ba/download
null
Selective Area Laser Deposition Vapor Infiltration (SALDVI) is a developing solid freeform fabrication (SFF) technique aimed at the direct fabrication of ceramic and ceramic/metal structures and composites. SALDVI uses a layer-by-layer approach in which layers of powder are densified with solid material deposited from ...
The authors gratefully acknowledge financial supports provided by the National Science Foundation under Grant No: DMI-9908249 and the Office of Naval Research under Grant No: N00014-95-1-0978.
null
null
null
null
null
['Weissman, E.M.', 'Hsu, M.B.']
2018-04-12T18:55:23Z
2018-04-12T18:55:23Z
1991
Mechanical Engineering
doi:10.15781/T2P55F05P
http://hdl.handle.net/2152/64286
eng
1991 International Solid Freeform Fabrication Symposium
Open
['ABS powder', 'polymer powder', 'conductivity']
A Finite Element Model of Multi-Layered Laser Sintered Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a4d9b115-28b1-4d5a-8f3d-7f3636ed2cf1/download
null
Afinite element heat transfer analysis is applied to the selective laser sinteringofa layered part made frompolyroerpowder. The sinteringsubroutine in the code is based on the analyses of Scherer [l t2] and Mackenzie and Shuttleworth [3]. The density and conductivity of the particle bed are treated as functions of the ...
null
null
null
null
null
null
['Sealy, M.P.', 'Madireddy, G.', 'Li, C.', 'Guo, Y.B.']
2021-10-26T19:00:54Z
2021-10-26T19:00:54Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89557
eng
2016 International Solid Freeform Fabrication Symposium
Open
['hybrid', 'SLM', 'laser shock peening', 'Ti64', 'residual stress']
Finite Element Modeling of Hybrid Additive Manufacturing by Laser Shock Peening
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7a33d493-9cfa-4345-8ef6-ed86fc8ce04e/download
University of Texas at Austin
Hybrid manufacturing has traditionally targeted efficiency and productivity as improvement criteria. However, the advent of additive manufacturing to print functional parts has expanded the possibilities for a hybrid approach in this field. Hybrid additive manufacturing is the combination of two or more manufacturing p...
null
null
null
null
null
null
['Arrieta, E.', 'Mireles, Jorge', 'Stewart, C.', 'Carrasco, C.', 'Wicker, R.']
2021-11-09T20:19:21Z
2021-11-09T20:19:21Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90155', 'http://dx.doi.org/10.26153/tsw/17076']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['lattices structures', 'Ti-6Al-4V', 'EBM', 'FEA', 'DIC']
Finite Element Modeling of Metal Lattices Using Commercial FEA Platforms
Conference paper
https://repositories.lib.utexas.edu//bitstreams/687a4ac9-69e1-44d4-b64b-cbbdca13ac9f/download
University of Texas at Austin
The introduction of geometrical features into standard solids result in cellular materials with unique performances. The deformation mechanisms originated by the introduced geometry may not be entirely captured by the current commercial FEM software; resulting in inaccuracies in predicting the performance of cellular m...
null
null
null
null
null
null
['Olleak, Alaa', 'Xi, Zhimin']
2021-11-11T16:39:13Z
2021-11-11T16:39:13Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90241', 'http://dx.doi.org/10.26153/tsw/17162']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['finite element modeling', 'selective laser melting', 'Ti-6Al-4V', 'thermal model', 'thermo-mechanical model']
Finite Element Modeling of the Selective Laser Melting Process for Ti-6Al-4V
Conference paper
https://repositories.lib.utexas.edu//bitstreams/78ee065f-7d90-4852-a313-6f992fc18692/download
University of Texas at Austin
Physics-based modeling of the selective laser melting (SLM) process is critical for better understanding the influence of the parts quality with respect to various process parameters and scanning strategies. The challenge is to balance model validity, domain size, and computational efficiency so that the model can be p...
null
null
null
null
null
null
['Wang, Zhaogui', 'Fang, Zhenyu', 'Smith, Douglas E.']
2021-12-07T17:45:50Z
2021-12-07T17:45:50Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90733', 'http://dx.doi.org/10.26153/tsw/17652']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['flow dynamics', 'fiber reinforced thermoplastics', 'direct deposition', 'additive manufacturing']
Finite Element Simulation of Direct Deposition Additive Manufacturing for Fiber Reinforced Thermoplastics
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f6384a95-6264-44f8-bc99-168dbebff7fd/download
University of Texas at Austin
Non-planar direct deposition additive manufacturing of polymer composites has recently seen increased attention from industries, where the molten plastics beads are extruded through a heated nozzle directly into three-dimensional space to form lightweight truss-like structures. This promising method shortens the manufa...
null
null
null
null
null
null
['Faustini, Mario', 'Lokhande, Mahendra', 'Crawford, Richard', 'Rogers, William', 'Gitter, Andrew', 'Bosker, Gordon']
2019-10-18T15:39:17Z
2019-10-18T15:39:17Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76242', 'http://dx.doi.org/10.26153/tsw/3331']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Prosthesis
Finite Element Structural Analysis of Prosthesis Sockets for Below-the-Knee Amputees Manufactured Using SLS
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c47a7f6e-189c-4bd1-9481-a856ac8d67b8/download
null
A very attractive application of Solid Freeform Fabrication is manufacture of prosthesis sockets for below-the-knee amputees. The custom geometric design required is very compatible with SFF techniques. The present work focuses on finite element analysis of sockets manufactured by Selective Laser Sintering using Durafo...
null
null
null
null
null
null
['Johnston, S.', 'Anderson, R.']
2019-10-24T18:12:30Z
2019-10-24T18:12:30Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/77415', 'http://dx.doi.org/10.26153/tsw/4504']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Metal Matrix
Finite Element Thermal Analysis of Three Dimensionally Printed (3DP™) Metal Matrix Composites
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3f8e8989-652e-405f-96a9-927ff4b7aa77/download
null
Three Dimensional Printing, 3DP™, is under development for the production of metal composites through solid freeform fabrication of a skeleton, followed by sintering and then infiltration of a second, lower melting metal. To maintain dimensionality and allow for infiltration, green component sintering produces only nec...
Financial support for this work is provided by the Office of Naval Research, Contract #N00014-C-00-0378.
null
null
null
null
null
['Doubrovski, E.L.', 'Verlinden, J.C.', 'Horvath, I.']
2021-10-06T22:33:56Z
2021-10-06T22:33:56Z
8/18/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88461', 'http://dx.doi.org/10.26153/tsw/15398']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['Design for Additive Manufactured', 'Additive Manufacturing', 'open-ended knowledge', 'wiki environment']
First Steps Towards Collaboratively Edited Design for Additive Manufacturing Knowledge
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4776a124-b43e-4435-87ce-17bb7da2d6b1/download
University of Texas at Austin
Despite the broad coverage concerning the technological challenges, little research has been performed on the methods that enable designers to deal with Additive Manufacturing. At present, the challenge is to generate Design for Additive Manufacturing knowledge which goes beyond traditional solutions and to ensure that...
null
null
null
null
null
null
['Mahale, Tushar R.', 'Taylor, James B.', 'Cormier, Denis R.']
2019-09-23T16:08:10Z
2019-09-23T16:08:10Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75951', 'http://dx.doi.org/10.26153/tsw/3050']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Thermoplastic
Five-Axis Freeform Fabrication of Solid Thermoplastic Parts via SWIFT 289
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8fd06535-b40a-4bb3-bd9b-b56380c18a69/download
null
Current Rapid Prototyping (RP) & Layered Manufacturing (LM) techniques are based on controlled, precise additive manufacturing methods. These techniques suffer from problems associated with stair stepping, loss of accuracy in the z-direction due to limitations on the slice thickness and their build speeds which prevent...
null
null
null
null
null
null
['Lao, S.C.', 'Koo, J. H.', 'Moon, T. J.', 'Yong, W.', 'Lam, C.', 'Zhou, J.', 'Hadisujoto, B.', 'Wissler, G.', 'Pilato, L.', 'Luo, Z. P.']
2020-03-10T17:11:24Z
2020-03-10T17:11:24Z
2008
Mechanical Engineering
null
['https://hdl.handle.net/2152/80231', 'http://dx.doi.org/10.26153/tsw/7250']
eng
2008 International Solid Freeform Fabrication Symposium
Open
rapid manufacturing
Flame Retardant Intumescent Polyamide 11 Nanocomposites – Further Study
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0bf9419c-c134-4b39-afe4-169d52928e5f/download
null
The objective of this research is to develop improved polyamide 11 and 12 polymers with enhanced flame retardancy, thermal, and mechanical properties for selective laser sintering (SLS) rapid manufacturing (RM). In the present study, a nanophase was introduced into the polyamide 11 and combine with a conventional intum...
null
null
null
null
null
null
['Lao, S.C.', 'Koo, J.H.', 'Moon, T.J.', 'Hadisujoto, B.', 'Yong, W.', 'Pilato, L.', 'Wissler, G.']
2021-09-29T14:53:20Z
2021-09-29T14:53:20Z
2009-09
Mechanical Engineering
null
['https://hdl.handle.net/2152/88188', 'http://dx.doi.org/10.26153/tsw/15129']
eng
2009 International Solid Freeform Fabrication Symposium
Open
['flammability properties', 'thermal properties', 'mechanical strength', 'polyamide 11 polymer nanocomposites', 'laser sintering', 'rapid manufacturing']
Flammability and Thermal Properties of Polyamide 11-Alumina Nanocomposites
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7197060c-acba-4cd2-a810-fe619e5ac3b5/download
University of Texas at Austin
Neat polyamides 11 and 12 lack high strength/high heat resistance and flame retardancy. The incorporation of selected nanoparticles is expected to enhance these properties to a level that is desired and required for performance driven applications. This enhancement may result in additional market opportunities for the ...
null
null
null
null
null
null
['Kraft, Stefan M.', 'Lattimer, Brian Y.', 'Williams, Christopher B.']
2021-11-01T22:33:37Z
2021-11-01T22:33:37Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89785
eng
2016 International Solid Freeform Fabrication Symposium
Open
['flammability', 'material compositions', 'object geometry', '3D printing', 'additive manufacturing']
Flammability of 3-D Printed Polymers – Composition and Geometry Factors
Conference paper
https://repositories.lib.utexas.edu//bitstreams/99fcd254-b6e3-4d7c-9848-79d0956a6ab9/download
University of Texas at Austin
The focus of this paper is to evaluate the comparative flammability of additively manufactured (AM) and conventionally molded polymers. Flammability of objects is dependent on two main factors: material composition and object geometry. To evaluate effects of material composition, experiments on polymer samples made via...
null
null
null
null
null
null
['Rock, Stephen J.', 'Wozny, Michael J.']
2018-04-12T18:00:41Z
2018-04-12T18:00:41Z
1991
Mechanical Engineering
doi:10.15781/T2ZP3WH3Q
http://hdl.handle.net/2152/64275
eng
1991 International Solid Freeform Fabrication Symposium
Open
['Rensselear Design Research Center', 'Rensselaer Polytechnic Institute', 'CAD systems', 'CSG']
A Flexible File Format for Solid Freeform Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/366f6df1-f552-4658-8860-e23e9bffd324/download
null
A flexible file format for Solid Freeform Fabrication data is presented which significantly improves on the de-facto industry standard STL format. The new format removes the redundancy present in STL files and can contain topological information. Its specification flexibility allows users to balance storage and process...
null
null
null
null
null
null
['Lai, Cheukfung', 'Gibson, Ian']
2019-09-23T16:03:42Z
2019-09-23T16:03:42Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75949', 'http://dx.doi.org/10.26153/tsw/3048']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Prototyping
A Flexible Rapid Prototyping Cell 275
Conference paper
https://repositories.lib.utexas.edu//bitstreams/026f7a23-3117-44b4-b018-b587294abe78/download
null
Rapid prototyping systems have demonstrated high flexibility in terms of creating complex geometry parts. Improvements in accuracy and material properties enable rapid prototyping to become a widely used and important part of the product development process. Further applications and further improved performance can be ...
null
null
null
null
null
null
['Somireddy, Madhukar', 'de Moraes, Diego A.', 'Czekanski, Aleksander']
2021-11-03T20:26:20Z
2021-11-03T20:26:20Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89923
eng
2017 International Solid Freeform Fabrication Symposium
Open
['laminates', 'flexural behavior', '3D printing', 'fused deposition modeling']
Flexural Behavior of FDM Parts: Experimental, Analytical and Numerical Study
Conference paper
https://repositories.lib.utexas.edu//bitstreams/67a320d6-1306-405a-9a5f-7340c0723e72/download
University of Texas at Austin
Fused deposition modelling (FDM) processed parts behave as composite laminate structures. Therefore, mechanics of composite laminates can be adopted for the characterization of mechanical behavior of the printed parts. In this study, the flexural properties of the 3D printed laminates are investigated experimentally, a...
null
null
null
null
null
null
['Currence, Jacob', 'Morales-Ortega, Rolando', 'Steck, Jason', 'Zhou, Wenchao']
2021-11-04T14:43:44Z
2021-11-04T14:43:44Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89973
eng
2017 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'cooperative 3D printing', 'power system', 'mobile robot']
A Floor Power Module for Cooperative 3D Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6aa9851e-6fd8-445c-a32b-8063cc1244a4/download
University of Texas at Austin
Cooperative 3D printing is an emerging technology that utilizes multiple printhead-carrying mobile robots to work simultaneously to 3D print or assemble products on a factory floor, which can provide the scalability, increased printing capability, and reduced human intervention for 3D printing to potentially become a m...
null
null
null
null
null
null
['Balderrama-Armendariz, Cesar O.', 'MacDonald, Eric', 'Valadez, Esdras D.', 'Espalin, David']
2021-11-01T22:20:11Z
2021-11-01T22:20:11Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89779
eng
2016 International Solid Freeform Fabrication Symposium
Open
['folding endurance', '3D printing', 'fusion deposition modeling']
Folding Endurance Appraisal for Thermoplastic Materials Printed in Fusion Deposition Technology
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6726b054-2481-44b1-bb7b-f3fccd88456e/download
University of Texas at Austin
The anisotropic behavior of the fusion deposition modeling (FDM) machines could change the mechanical properties of the materials in the layer by layer technology. In general, the tensile, compressive and flexural strength are decreased against molded plastics. Some lasting products need the iteration of low flexural s...
null
null
null
null
null
null
['Norrell, Jeffery L.', 'Wood, Kristin L.', 'Crawford, Richard H.', 'Bergman, Theodore L.']
2018-11-15T20:44:22Z
2018-11-15T20:44:22Z
1996
Mechanical Engineering
doi:10.15781/T2C53FM56
http://hdl.handle.net/2152/70278
eng
1996 International Solid Freeform Fabrication Symposium
Open
['SLS powder beds', 'thermal behavior', 'Rapid prototyping']
Forced Convection in a Polymeric Powders
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ef939827-081a-40d0-b932-5f2092623559/download
null
In a Selective Laser Sintering (SLS) powder bed, thermal transfer occurs through multiple modes. Forced convection through the powder, or downdraft, has recently been implemented in SLS machines in an effort to enhance thermal transfer within the powder bed. In this paper, forced convection is analytically shown to be ...
null
null
null
null
null
null
['Crockett, Robert S.', 'Zick, Rebecca']
2019-09-23T17:22:37Z
2019-09-23T17:22:37Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75982', 'http://dx.doi.org/10.26153/tsw/3081']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Fabrication
Forensic Applications of Solid Freeform Fabrication 549
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6039e524-fa20-46ac-b9bd-2c4fa1b3c3a5/download
null
Solid Freeform Fabrication was recently used to identify the dismembered body of a woman found in rural Wisconsin. Skin from the face of the victim had been removed, making visual identification impossible. A model of the skull was constructed by Laminated Object Manufacturing (LOM), using data extracted from CT scans ...
We also gratefully acknowledge the financial support of the National Science Foundation and the MSOE Rapid Prototyping Consortium, as well as the facilities and expertise provided by the staff of the MSOE Rapid Prototyping Center.
null
null
null
null
null
['Tagore, G.R.N.', 'Anjikar, Swapnil D.', 'Gopal, A. Venu']
2020-03-09T14:26:59Z
2020-03-09T14:26:59Z
2007
Mechanical Engineering
null
['https://hdl.handle.net/2152/80185', 'http://dx.doi.org/10.26153/tsw/7204']
eng
2007 International Solid Freeform Fabrication Symposium
Open
Solid Freeform Fabrication
Form Accuracy Analysis of Cylindrical Parts Produced by Rapid Prototyping
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c4d45f8a-4cb3-4ee7-bf41-d3c0bd47192b/download
null
Solid Freeform fabrication processes are being considered for creating fit and assembly nature functional parts. It is extremely important that these parts are within allowable dimensional and geometric tolerance. The part accuracy produced by rapid prototyping process is greatly affected by the relative orientation of...
null
null
null
null
null
null
['Sperry, M.G.', 'Carter, D.', 'Crane, N.B.', 'Nelson, T.W.']
2024-03-25T23:57:15Z
2024-03-25T23:57:15Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124347', 'https://doi.org/10.26153/tsw/50955']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['selective doping', 'laser powder bed fusion', 'additive manufacturing']
Formation of Easy-To-Remove Supports in Laser Powder Bed Fusion through Selective Doping
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0c27e175-8846-4722-b345-b35ce6c28627/download
University of Texas at Austin
Laser Powder Bed Fusion (LPBF) is a popular Additive Manufacturing (AM) technique used c01m11only for metals. Metal paiis formed by LPBF generally require supports connecting the part to the print bed to hold up the strncture, remove heat, and minimize deformation due to solidification shrinkage. Because of these suppo...
null
null
null
null
null
null
['Das, Anirban', 'Dasgupta, Niladri', 'Gurumoorthy, B.', 'Umarji, A. M.']
2019-06-13T14:05:35Z
2019-06-13T14:05:35Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/74941', 'http://dx.doi.org/10.26153/tsw/2053']
eng
2000 International Solid Freeform Fabrication Symposium
Open
['LOM', 'polymer', 'Lamination']
Formulation of Lamination Conditions and Interface Studies using Acrylic Binder System for LOM 9
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0350f683-ba65-4471-b653-ecf8a3e0d936/download
null
A multicomponent binder-plasticiser system based on acrylates was formulated for making flexible tapes of Alumina (58 volume %), to be used for Laminated Object Manufacturing. Optimum lamination parameters were arrived at by viscosity measurement of the binder-plasticiser system and dilatometry of the compounded tapes ...
null
null
null
null
null
null
['Zhou, Jack G.', 'He, Zongyan', 'Guo, Jian']
2019-03-12T16:49:03Z
2019-03-12T16:49:03Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73601', 'http://dx.doi.org/10.26153/tsw/743']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['SALD', 'ECLD-SFF']
Fractal Growth Modeling of Electrochemical Deposition in Solid Freeform Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/be7947f7-b5a0-4494-aaae-8410e07441a8/download
null
A new rapid tooling technique ElectroChemical Liquid Deposition Based Solid Freeform Fabrication (ECLD-SFF) was introduced in this paper. In the ECLD-SFF a substrate made of or coated with conductive materials is connected to a DC power supply, and the substrate is put into a plating bath. A very thin metal pin is conn...
null
null
null
null
null
null
['Yang, Lei', 'Yan, Chunze', 'Shi, Yusheng']
2021-11-04T20:41:42Z
2021-11-04T20:41:42Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90023', 'http://dx.doi.org/10.26153/16944']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['fracture mechanism', 'TPMS', 'Schoen Gyroid', 'cellular structures', 'selective laser melting']
Fracture Mechanism Analysis of Schoen Gyroid Cellular Structures Manufactured by Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d048d1d1-b78f-4aa4-baa5-61e35112188e/download
University of Texas at Austin
Ti-6Al-4V triply periodic minimal surface (TPMS) structures with biomorphics scaffold designs are expected to be the most promising candidates for many biological applications such as bone implants. Fracture is the main failure mode of Ti-6Al-4V cellular structures at room temperature. However, there is currently less ...
null
null
null
null
null
null
['McNeil, J. Logan', 'Hamel, William R.', 'Penney, Joshua', 'Nycz, Andrzej', 'Noakes, Mark']
2021-11-18T16:54:47Z
2021-11-18T16:54:47Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90426', 'http://dx.doi.org/10.26153/tsw/17347']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['large scale additive metals manufacturing', 'LSAMM', 'arbitrary directions', 'CAD']
Framework for CAD to Part of Large Scale Additive Manufacturing of Metal (LSAMM) in Arbitrary Directions
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9d7bd568-db7d-43ef-9be3-9a7cd2a96565/download
University of Texas at Austin
The purpose of this research is to provide a framework for Large Scale Additive Metals Manufacturing (LSAMM) in arbitrary directions. Traditionally, slicing and path planning is done along the gravity aligned direction of a part, causing more complex geometrical shapes to have unsupported overhangs. The overhangs can b...
null
null
null
null
null
null
['Wang, Zhiyun', 'Liu, Renwei', 'Sparks, Todd', 'Liou, Frank']
2021-10-19T21:12:39Z
2021-10-19T21:12:39Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89339
eng
2015 International Solid Freeform Fabrication Symposium
Open
['fused pellet modeling', 'void density', 'accuracy control', 'robot']
A Framework for Large Scale Fused Pellet Modeling (FPM) by An Industry Robot
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a4bfccfb-adaf-4e78-8718-f58f3553c416/download
University of Texas at Austin
Fused pellet modeling (FPM) is an important method in additive manufacturing technology, where granular material is used instead of filaments. In FPM, prototypes are constructed by the sequential deposition of material layers. As the size of the part increases, the problem of long build times and part deformation becom...
null
null
null
null
null
null
['McNulty, T.', 'Bhate, D.', 'Zhang, A.', 'Kiser, M.A.', 'Ferry, L.', 'Suder, A.', 'Bhattacharya, S.', 'Boradkar, P.']
2021-11-04T19:41:26Z
2021-11-04T19:41:26Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90013', 'http://dx.doi.org/10.26153/16934']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['biomimetic cellular materials', 'classification', 'design framework', 'additive manufacturing']
A Framework for the Design of Biomimetic Cellular Materials for Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6639ce49-e514-4465-b661-137d65b2699f/download
University of Texas at Austin
Cellular materials such as honeycombs and lattices are an important area of research in Additive Manufacturing due to their ability to improve functionality and performance. While there are several design choices when selecting a unit cell, it is not always apparent what the optimum cellular design for a particular app...
null
null
null
null
null
null
['Weiss, Lee E.', 'Prinz, Fritz B.', 'Siewiork, Daniel P.']
2018-04-17T17:02:12Z
2018-04-17T17:02:12Z
1991
Mechanical Engineering
doi:10.15781/T2J38M13F
http://hdl.handle.net/2152/64334
eng
1991 International Solid Freeform Fabrication Symposium
Open
['Thermal Spray', 'Net Shape Manufacture', 'Rapid Prototyping']
A Framework for Thermal Spray Shape Deposition: The MD* System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8135518c-008f-444f-a18a-678fceaec339/download
null
This paper present.s t.he framework for a solid-freeform-fabrication syst.em based on thermal spray shape deposition t.o build mult.i-mat.erial st.ruct.ures by incremen tal build-up of t.hin cross-sect.ional layers. The basis of theMD* System (recursively, Mask and Deposit.) is to spray each layer using disposable mask...
null
null
null
null
null
null
['Chatham, C.A.', 'Washington, A.L. II']
2023-03-29T14:47:18Z
2023-03-29T14:47:18Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117674', 'http://dx.doi.org/10.26153/tsw/44553']
eng
2022 International Solid Freeform Fabrication Symposium
Open
Additive manufacturing
A Framework with Examples for Printing Thermosetting Polymers Using Laser Powder Bed Fusion Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c7f7c54a-d881-44e3-b919-1f45bbdabba1/download
null
Thermoset polymers possess traits arising from their covalently crosslinked network structure that are distinct from thermoplastic polymers. These traits can manifest as relative increases in the performance properties of chemical resistance, stiffness, and strength particularly at elevated temperature. Although the...
null
null
null
null
null
null
['Bampton, C.C', 'Burkett, R.']
2018-11-08T14:55:27Z
2018-11-08T14:55:27Z
1995
Mechanical Engineering
doi:10.15781/T20V8B31P
http://hdl.handle.net/2152/69879
eng
1995 International Solid Freeform Fabrication Symposium
Open
['free form fabrication', 'SLS', 'alloy systems']
Free Form Fabrication of High Strength Metal Components and Dies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/737b10dc-6599-4944-8309-89988dc5e3d4/download
null
A two-stage method has been devised for free form fabrication of nickel, iron and copper based alloy parts with shape and property control equal or superior to investment castings in the same base alloys. A major advantage of the approach is the ability to utilise commercially available selective laser sintering system...
null
null
null
null
null
null
['Griffith, M. L.', 'Keicher, D. M.', 'Atwood, C. L.', 'Romero, J. A.', 'Smugeresky, J. E.', 'Harwell, L. D.', 'Greene, D. L.']
2018-11-09T16:21:31Z
2018-11-09T16:21:31Z
1996
Mechanical Engineering
doi:10.15781/T26689430
http://hdl.handle.net/2152/69929
eng
1996 International Solid Freeform Fabrication Symposium
Open
['CAD', 'LENS', 'stereolithography']
Free Form Fabrication of Metallic Components Using Laser Engineered Net Shaping (Lens)
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1975e01c-f42e-40b1-a26b-df29613a77d6/download
null
Solid free form fabrication is one ofthe fastest growing automated manufacturing technologies that has significantly impacted the length oftime between initial concept and actual part fabrication1 2. Starting with CAD renditions of new components, several techniques such as stereolithography3 and selective laser sinter...
null
null
null
null
null
null
['Chang, R.', 'Starly, B.', 'Sun, W.', 'Culbertson, C.', 'Holtorf, H.', 'Gonda, S.']
2020-02-27T20:43:56Z
2020-02-27T20:43:56Z
2006
Mechanical Engineering
null
['https://hdl.handle.net/2152/80104', 'http://dx.doi.org/10.26153/tsw/7125']
eng
2006 International Solid Freeform Fabrication Symposium
Open
physiologically-based pharmokinetic
Freeform Bioprinting of Liver Encapsulated in Alginate Hydrogels Tissue Constructs for Pharmacokinetic Study
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c2f985cf-95e8-47de-9bb9-bf8682aaaebf/download
null
An in vitro model that can be realistically and inexpensively used to predict human response to various drug administration and toxic chemical exposure is needed. By fabricating a microscale 3D physiological tissue construct consisting of an array of channels and tissue-embedded chambers, one can selectively develop va...
null
null
null
null
null
null
['Thomas, Albin', 'Kolan, Krishna C.R.', 'Leu, Ming C.', 'Hilmas, Gregory E.']
2021-10-21T21:04:19Z
2021-10-21T21:04:19Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89448
eng
2015 International Solid Freeform Fabrication Symposium
Open
['freeform extrusion fabrication', 'bioactive glass scaffolds', 'titanium fibers', 'fiber reinforcement']
Freeform Extrusion Fabrication of Titanium Fiber Reinforced Bioactive Glass Scaffolds
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ea444e09-eb29-4399-b608-798da9287df8/download
University of Texas at Austin
Although implants made with bioactive glass have shown promising results for bone repair, their application in repairing load-bearing long bones is limited due to their low fracture toughness and fairly fast degradation response in vivo. In this paper, we describe our investigation of freeform extrusion fabrication of ...
null
null
null
null
null
null
['Mason, Michael S.', 'Huang, Tieshu', 'Landers, Robert G.', 'Leu, Ming C.', 'Hilmas, Gregory E.']
2020-02-28T20:43:36Z
2020-02-28T20:43:36Z
9/14/06
Mechanical Engineering
null
['https://hdl.handle.net/2152/80120', 'http://dx.doi.org/10.26153/tsw/7141']
eng
2006 International Solid Freeform Fabrication Symposium
Open
solid freeform fabrication
Freeform Extrusion of High Solids Loading Ceramic Slurries, Part I: Extrusion Process Modeling
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f4ca0ddf-50b3-4e3f-90a5-c12e6b67fd54/download
null
A novel solid freeform fabrication method has been developed for the manufacture of ceramic-based components in an environmentally friendly fashion. The method is based on the extrusion of ceramic slurries using water as the binding media. Aluminum oxide (Al2O3) is currently being used as the part material and solids l...
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null
null
null
null
null
['Mason, Michael S.', 'Huang, Tieshu', 'Landers, Robert G.', 'Leu, Ming C.', 'Hilmas, Gregory E.']
2020-02-28T20:47:32Z
2020-02-28T20:47:32Z
9/14/06
Mechanical Engineering
null
['https://hdl.handle.net/2152/80121', 'http://dx.doi.org/10.26153/tsw/7142']
eng
2006 International Solid Freeform Fabrication Symposium
Open
solids loading ceramic slurry extrusion
Freeform Extrusion of High Solids Loading Ceramic Slurries, Part II: Extrusion Process Control
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d3102b2b-a7dd-412f-ba75-9e350117d86b/download
null
Part I of this paper provided a detailed description of a novel fabrication machine for high solids loading ceramic slurry extrusion and presented an empirical model of the ceramic extrusion process, with ram velocity as the input and extrusion force as the output. A constant force is desirable in freeform extrusion pr...
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null
null
null
null
null
['Asiabanpour, Bahram', 'Melbye, Jerry', 'Melbye, Vicky', 'Jensen, Evan', 'Shaw, Joshua']
2021-09-23T22:01:17Z
2021-09-23T22:01:17Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/88033', 'http://dx.doi.org/10.26153/tsw/14974']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['facial reproduction', 'forensic anthropology', 'skull prototyping', 'Laser Scanning']
Freeform Fabrication Assists Forensic Scientists in the Identification of Unknown Victims
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7e5a526e-bdc1-4935-9580-f07cd20b0c95/download
null
According to the International Homicide Investigators Association, there are currently over 40,000 unidentified bodies being held in coroner‟s and medical examiner‟s offices across the United States. Over half are estimated to be victims of homicide, and all are awaiting positive identification. One technique utilized ...
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null
null
null
null
null
['Malone, Evan', 'Rasa, Kian', 'Cohen, Daniel', 'Isaacson, Todd', 'Lashley, Hilary', 'Lipson, Hod']
2019-11-20T17:16:48Z
2019-11-20T17:16:48Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78487', 'http://dx.doi.org/10.26153/tsw/5572']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Structural-Electric
Freeform Fabrication of 3D Zinc-Air Batteries and Functional Structural-Electric Assemblies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/646535f1-76cd-4d03-af94-77749d2ec7a3/download
null
This paper reports on a fabrication platform and extensions to deposition-based processes that permit freeform fabrication of three-dimensional functional assemblies with embedded conductive wiring and power sources. Structure and joints are produced by fused deposition of thermoplastics and deposition of elastomers. C...
This work was supported in parts by the U.S. Department of Energy, grant DE-FG02- 01ER45902.
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null
null
null
null
['Malone, Evan', 'Lipson, Hod']
2020-03-10T16:04:27Z
2020-03-10T16:04:27Z
9/5/07
Mechanical Engineering
null
['https://hdl.handle.net/2152/80219', 'http://dx.doi.org/10.26153/tsw/7238']
eng
2007 International Solid Freeform Fabrication Symposium
Open
electromechanical
Freeform Fabrication of a Complete Electrochemical Relay
Conference paper
https://repositories.lib.utexas.edu//bitstreams/13fbb70e-d88a-4034-b228-7fbb3ede1495/download
null
null
null
null
null
null
null
null
['Kyogoku, Hideki', 'Hagiwara, Masashi', 'Shinno, Toshifumi']
2021-09-30T13:22:46Z
2021-09-30T13:22:46Z
9/23/10
Mechanical Engineering
null
['https://hdl.handle.net/2152/88231', 'http://dx.doi.org/10.26153/tsw/15172']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['selective laser sintering', 'selective laser melting', 'aluminum alloy', 'freeform fabrication', 'Al-12Si alloy']
Freeform Fabrication of Aluminum Alloy Prototypes Using Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/07303ac8-a191-4ea0-8813-6821adeaf6d1/download
University of Texas at Austin
In this study, a direct selective laser sintering/melting machine was designed and constructed. The machine has a 50 W Yb-fiber laser, a galvanometer scanner and a powder delivery and build system. It was confirmed that the machine works well. The fabrication conditions of aluminum alloys were investigated using the ma...
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null
null
null
null
null
['Han, Li-Hsin', 'Mapili, Gazill', 'Chen, Shaochen', 'Roy, Krishnendu']
2020-03-10T15:05:28Z
2020-03-10T15:05:28Z
9/4/07
Mechanical Engineering
null
['https://hdl.handle.net/2152/80213', 'http://dx.doi.org/10.26153/tsw/7232']
eng
2007 International Solid Freeform Fabrication Symposium
Open
scaffolds
Freeform Fabrication of Biological Scaffolds by Projection Photopolymerization
Conference paper
https://repositories.lib.utexas.edu//bitstreams/899be073-b465-41af-ae54-d1f011840323/download
null
This article presents a micro-manufacturing method for direct, projection printing of 3- dimensional (3D) scaffolds for applications in the field of tissue engineering by using a digital micro-mirror-array device (DMD) in a layer-by-layer process. Multi-layered scaffolds are microfabricated using curable materials thro...
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null
null
null
null
null
['Malone, Evan', 'Lipson, Hod']
2020-02-17T15:16:42Z
2020-02-17T15:16:42Z
9/1/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/80008', 'http://dx.doi.org/10.26153/tsw/7033']
eng
2004 International Solid Freeform Fabrication Symposium
Open
compact fabrication system
Freeform Fabrication of Electroactive Polymer Actuators and Electromechanical Devices
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0dfae166-ef2f-4e27-a047-faead286e5d0/download
null
In pursuit of the goal of producing complete electromechanical systems entirely via solid freeform fabrication, we are developing a library of mutually compatible, functional, freeform elements. Several essential elements – actuation, sensing, and control electronics - still remain to be incorporated into this library....
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null
null
null
null
null
['Malone, Evan', 'Lipson, Hod']
2020-02-24T15:39:32Z
2020-02-24T15:39:32Z
8/3/05
Mechanical Engineering
null
['https://hdl.handle.net/2152/80085', 'http://dx.doi.org/10.26153/tsw/7106']
eng
2005 International Solid Freeform Fabrication Symposium
Open
Solid Freeform Fabrication
Freeform Fabrication of Ionomeric Polymer-Metal Composite Actuators
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8e5c111e-d65f-4b55-a069-e5e76126c7c5/download
null
Ionomeric polymer-metal composite (IPMC) actuators are a type of soft electromechanically active material which offers large displacement, rapid motion with only ~1V stimulus. IPMC’s are entering commercial applications in toys (Ashley 2003) and biomedical devices (Soltanpour 2001; Shahinpoor 2002; Shahinpoor, Shahinpo...
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null
null
null
['Havener, Robin', 'Boyea, John', 'Malone, Evan', 'Bernards, Daniel', 'DeFranco, John', 'Malliaras, George', 'Lipson, Hod']
2020-03-09T13:36:50Z
2020-03-09T13:36:50Z
8/21/07
Mechanical Engineering
null
['https://hdl.handle.net/2152/80175', 'http://dx.doi.org/10.26153/tsw/7194']
eng
2007 International Solid Freeform Fabrication Symposium
Open
electrochemical transistors
Freeform Fabrication of Organic Electrochemical Transistors
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6c442b72-8949-4809-9da3-8b669cd362ef/download
null
null
null
null
null
null
null
null
['Lipton, Jeffrey', 'Boban, Mathew', 'Hiller, Jonathan', 'Lipson, Hod']
2021-09-30T23:54:23Z
2021-09-30T23:54:23Z
2010
Mechanical Engineering
null
['https://hdl.handle.net/2152/88299', 'http://dx.doi.org/10.26153/tsw/15240']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['cellular materials', 'stochastic foam', 'closed celled foams', 'viscous thread']
Freeform Fabrication of Stochastic and Ordered Cellular Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/16cef7be-06a8-4769-aa06-8d451023e6a8/download
University of Texas at Austin
Cellular materials provide a unique challenge to SFF technology. Such materials have unique properties of low mass, high strength, and good insulation properties. To produce such cellular structures, SFF systems require a designed microstructure with a feature size significantly lower than the resolution of the process...
null
null
null
null
null
null
Rotheroe, Kevin Chaite
2019-10-22T17:54:15Z
2019-10-22T17:54:15Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/76325', 'http://dx.doi.org/10.26153/tsw/3414']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Optimized
The Freeform Fabrication of Structurally Optimized and Complexly Shaped Metal Tubular Components
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b21b6437-4fad-4a05-af0d-cdb96be5d51d/download
null
The service conditions of many structural frames composed of tubular metal components would ideally warrant the use of high strength-to-weight ratio components with shapes and internal geometries that respond to context-specific structural requirements. Commercially available and emerging solid freeform fabrication tec...
null
null
null
null
null
null
['Dcosta, D.J.', 'Sun, W.', 'Raghy-El, T.']
2019-10-10T17:20:51Z
2019-10-10T17:20:51Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76175', 'http://dx.doi.org/10.26153/tsw/3264']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Fabrication
Freeform Fabrication of Ti3SiC2 Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7882d446-272c-4065-ae71-8c037b730722/download
null
This paper introduces a three-stage process to fabricate highly dense Ti3SiC2 structures. The properties of Ti3SiC2 material, the synthesis of the ceramic powder, the procedure involved in the 3-stage fabrication process and the preliminary results on fabricating fully dense Ti3SiC2 structures are presented. The charac...
null
null
null
null
null
null
['Berry, Megan E.', 'Malone, Evan', 'Lipson, Hod']
2020-02-21T16:07:27Z
2020-02-21T16:07:27Z
8/26/05
Mechanical Engineering
null
['https://hdl.handle.net/2152/80066', 'http://dx.doi.org/10.26153/tsw/7088']
eng
2005 International Solid Freeform Fabrication Symposium
Open
freeform fabricated circuits
Freeform Fabrication of Zinc Air Batteries with Tailored Geometry and Performance
Conference paper
https://repositories.lib.utexas.edu//bitstreams/278cfb21-e669-437f-923f-3e495238c342/download
null
This work is focused on the freeform fabrication of complete zinc-air batteries. This method of production gives great freedom in the geometry and construction of the battery, allowing tailoring of the output characteristics, and the possibility of embedding a customized battery within a larger integrated freeform fabr...
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null
null
null
null
null
['Leu, Ming C.', 'Adamek, Erik B.', 'Huang, Tieshu', 'Hilmas, Greg E.', 'Dogan, Faith']
2021-09-23T20:26:42Z
2021-09-23T20:26:42Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/88022', 'http://dx.doi.org/10.26153/tsw/14963']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['Selective Laser Sintering', 'SLS', 'zirconium diboride', 'freeform fabrication', 'mechanical engineering']
Freeform Fabrication of Zirconium Diboride Parts Using Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1b80fd9f-f748-48da-ac1a-217cceb9f0fb/download
null
Using the Selective Laser Sintering (SLS) process, both flexural test bars and 3D fuel injector components have been fabricated with zirconium diboride (ZrB2) powder. Stearic acid was selected as the binder. Values of SLS process parameters were chosen such that the green parts could be built with sharp geometrical fea...
null
null
null
null
null
null
['Rock, Stephen J.', 'Gilman, Charles R.', 'Misiolek, Wojciech Z.', 'Walczyk, Daniel F.']
2018-11-09T16:32:09Z
2018-11-09T16:32:09Z
1996
Mechanical Engineering
doi:10.15781/T2T14V847
http://hdl.handle.net/2152/69932
eng
1996 International Solid Freeform Fabrication Symposium
Open
['SFF', 'Rapid Tooling', 'freeze molding']
Freeform Powder Molding for Rapid Tooling
Conference paper
https://repositories.lib.utexas.edu//bitstreams/dab977f4-9c13-414b-bbe4-935a6e3a04ba/download
null
Tooling development can be quite time consuming and costly. Several iterations may be required, and later product or process modifications may necessitate tooling redesign. Rapid prototyping techniques capable of meeting the structural requirements of short-run and end-use tooling will have a significant impact on the ...
null
null
null
null
null
null
['Huang, T.S.', 'Doiphode, N.D.', 'Rahaman, M.N.', 'Leu, M.C.', 'Bal, B.S.', 'Day, D.E.']
2021-10-04T20:05:59Z
2021-10-04T20:05:59Z
9/23/10
Mechanical Engineering
null
['https://hdl.handle.net/2152/88332', 'http://dx.doi.org/10.26153/tsw/15271']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['freeze extrusion fabrication', 'bioactive glass', 'solid freeform fabrication', 'bone repair']
Freeze Extrusion Fabrication of 13-93 Bioactive Glass Scaffolds for Bone Repair
Conference paper
https://repositories.lib.utexas.edu//bitstreams/bac9a092-59b5-4624-946b-d36df0aa4d27/download
University of Texas at Austin
There is an increasing demand for synthetic scaffolds with the requisite biocompatibility, internal architecture, and mechanical properties for the bone repair and regeneration. In this work, scaffolds of a silicate bioactive glass (13-93) were prepared by a freeze extrusion fabrication (FEF) method and evaluated in vi...
null
null
null
null
null
null
['Huang, Tieshu', 'Mason, Michael S.', 'Hilmas, Gregory E.', 'Leu, Ming C.']
2020-02-20T20:00:26Z
2020-02-20T20:00:26Z
2005
Mechanical Engineering
null
https://hdl.handle.net/2152/80046
eng
2005 International Solid Freeform Fabrication Symposium
Open
['Fused Deposition Modeling', 'Fused Deposition of Ceramic']
Freeze-form Extrusion Fabrication of Ceramics
Conference paper
https://repositories.lib.utexas.edu//bitstreams/03f6e416-3880-422f-9987-e54a84a76190/download
null
A novel, environmentally friendly solid freeform fabrication method called Freeze-form Extrusion Fabrication (FEF) has been developed for the fabrication of ceramic-based components. The method is based on deposition of ceramic pastes using water as the media. The ceramic solids loading can be 50 vol. % or higher and i...
null
null
null
null
null
null
['Leu, Ming C.', 'Tang, Lie', 'Deuser, Brad', 'Landers, Robert G.', 'Hilmas, Gregory E.', 'Zhang, Shi', 'Watts, Jeremy']
2021-10-04T20:38:10Z
2021-10-04T20:38:10Z
8/17/11
Mechanical Engineering
null
['https://hdl.handle.net/2152/88342', 'http://dx.doi.org/10.26153/tsw/15281']
eng
2011 International Solid Freeform Fabrication Symposium
Open
['Freeze-form Fabrication', 'three-dimensional structures', 'graded composite materials', 'material composition']
Freeze-Form Extrusion Fabrication of Composite Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ac0a470d-efc5-4ff5-adb5-cbce18006d4d/download
University of Texas at Austin
A Freeze-form Extrusion Fabrication (FEF) process capable of making three-dimensional (3D) parts and structures with graded composite materials is presented in this paper. The process development includes the design and manufacture of a gantry machine with a triple-extruder mechanism and the associated electronics hard...
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null
null
null
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