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['Shrestha, Rakish', 'Simsiriwong, Jutima', 'Shamsaei, Nima']
2021-11-18T00:22:18Z
2021-11-18T00:22:18Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90368', 'http://dx.doi.org/10.26153/tsw/17289']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['stress gradient', 'fatigue', '316L stainless steel', 'surface roughness']
Comparison of Rotating-Bending and Axial Fatigue Behaviors of LB-PBF 316L Stainless Steel
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e72c83ca-00c4-46bd-a799-e67d70adf8ca/download
University of Texas at Austin
Additive manufactured (AM) materials are prone to internal defects such as entrapped gas pores and lack of fusions along with having a rough surface. There are different types of fatigue tests that are used to characterize the effects of such defects on the structural integrity of AM parts. The present study aims to in...
null
null
null
null
null
null
['Roach, Michael', 'Williamson, R. Scott', 'Pegues, Jonathan', 'Shamsaei, Nima']
2021-11-11T15:19:10Z
2021-11-11T15:19:10Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90217', 'http://dx.doi.org/10.26153/tsw/17138']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['stress corrosion cracking', 'environmentally assisted cracking', 'titanium alloy', 'tensile properties']
A Comparison of Stress Corrosion Cracking Susceptibility in Additively-Manufactured and Wrought Materials for Aerospace and Biomedical Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b28ef43d-a78a-4bb3-bba1-3cbd7d0914c4/download
University of Texas at Austin
Additive manufacturing (AM) is becoming an increasingly popular method in both aerospace and biomedical industries. Titanium alloys are increasingly common in additive manufactured applications due to their excellent strength to weight ratio and biocompatibility. Traditional wrought Ti-6Al-4V alloys show little sensiti...
null
null
null
null
null
null
['De La Cruz, Alex', 'Medina, Francisco', 'Arrieta, Edel', 'Weston, Luke', 'Benedict, Mark', 'Gibson, Theo']
2024-03-27T03:42:25Z
2024-03-27T03:42:25Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124472', 'https://doi.org/10.26153/tsw/51080']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'laser powder bed fusion', 'Ti6Al4V', 'surface texture', 'surface morphology']
Comparison of Surface Texture from Various Surface Morphology Techniques for Evaluating As-Built Ti6Al4V Laser Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d8669a2c-7452-4046-8cb6-dd9be6890d39/download
University of Texas at Austin
Additive manufacturing (AM) is capable of creating unique and complex geometries that conventional methods cannot achieve. The applications for AM have been rapidly increasing across a variety of sectors, particularly for biomedical and aerospace components, the relatively low production volumes and high demand for cus...
null
null
null
null
null
null
['Chu, Jane', 'Engelbrecht, Sarah', 'Graf, Greg', 'Rosen, David W.']
2021-09-23T22:08:07Z
2021-09-23T22:08:07Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/88035', 'http://dx.doi.org/10.26153/tsw/14976']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['cellular materials', 'lattice structures', 'design synthesis', 'particle swarm optimization', 'least square minimization', 'additive manufacturing']
A Comparison of Synthesis Methods for Cellular Structures with Application to Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c5e7d7b2-681e-4db7-87ac-fdda3c82826a/download
null
Cellular material structures, such as honeycombs and lattice structures, have been engineered at the mesoscale for high performance and multifunctional capabilities. We desire efficient algorithms for searching the large, complex design spaces associated with cellular structures. In this paper, we present a comparison ...
null
null
null
null
null
null
['Zeng, Kai', 'Teng, Chong', 'Xu, Sally', 'Sublette, Tim', 'Patil, Nachiket', 'Pala, Deepankar', 'Stucker, Brent']
2021-10-18T21:56:44Z
2021-10-18T21:56:44Z
2014
Mechanical Engineering
null
https://hdl.handle.net/2152/89265
eng
2014 International Solid Freeform Fabrication Symposium
Open
['simulation infrastructure', 'simulation code', 'computational speed', 'metal-based additive manufacturing', '3DSIM', 'ANSYS', 'University of Louisville']
A Comparison of the Computational Speed of 3DSIM Versus ANSYS Finite Element Analyses for Simulation of Thermal History in Metal Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e7297114-1d98-4428-b025-cd28a7cc0f22/download
University of Texas at Austin
A new simulation infrastructure for predicting the effects of changes in process parameters on mechanical properties, residual stress/strain, crystal structure, and other micro & macro features of components made using metal-based AM techniques has been developed at the University of Louisville (UofL) and is being comm...
null
null
null
null
null
null
['Yang, Yu', 'Obahor, Omoghene Osaze', 'Bao, Yaxin', 'Sparks, Todd E.', 'Ruan, Jianzhong', 'Stroble, Jacquelyn Kay', 'Landers, Robert', 'Newkirk, Joseph', 'Liou, Frank']
2020-03-02T15:20:25Z
2020-03-02T15:20:25Z
9/14/06
Mechanical Engineering
null
['https://hdl.handle.net/2152/80131', 'http://dx.doi.org/10.26153/tsw/7152']
eng
2006 International Solid Freeform Fabrication Symposium
Open
Laser Flash
Comparison of Thermal Properties of Laser Deposition and Traditional Welding Process via Thermal Diffusivity Measurement
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f388914f-ad1f-4766-bfa3-ecee9ac4f4eb/download
null
Laser deposition is an effective process for mold and die repair. In order to improve the part repair qualityˈthe process impact on thermal diffusivity and thermal conductivity needs to be understood for laser deposited, welded and virgin H13. In this paper, H13 tool steel samples were made by laser deposition, welding...
null
null
null
null
null
null
['Loeber, L.', 'Biamino, S.', 'Ackelid, U.', 'Sabbadini, S.', 'Epicoco, P.', 'Fino, P.', 'Eckert, J.']
2021-10-05T14:24:15Z
2021-10-05T14:24:15Z
2011
Mechanical Engineering
null
['https://hdl.handle.net/2152/88377', 'http://dx.doi.org/10.26153/tsw/15316']
eng
2011 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'electron beam melting', 'titanium aluminides']
Comparison off Selective Laser and Electron Beam Melted Titanium Aluminides
Conference paper
https://repositories.lib.utexas.edu//bitstreams/03ec721a-a0bf-48bf-afb6-d0f66135474e/download
University of Texas at Austin
In the following paper we present the investigation of microstructure and mechanical properties produced by selective laser melting (SLM) and electron beam melting (EBM). The chosen alloy is a Ti-(46- 48)Al-2Cr-2Nb alloy which has a great potential in replacing heavy weight Ni-base superalloys in turbine blades. Cylind...
null
null
null
null
null
null
['Dai, Kun', 'Li, Xiaoxuan', 'Shaw, Leon L.']
2019-11-20T16:30:55Z
2019-11-20T16:30:55Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78474', 'http://dx.doi.org/10.26153/tsw/5559']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Thermal Modeling
Comparisons Between Thermal Modeling and Experiments in Laser-Densified Dental Powder Bodies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ec597b85-4168-4b5c-a8b3-b8da0ab63b0e/download
null
A three-dimensional thermal finite element model including the effect of the powder-tosolid transition has been developed to investigate the transient temperature distribution during laser densification of dental powder bed for the layer-by-layer fabrication. The model encompasses the effects of the temperature- and po...
The authors gratefully acknowledge financial support provided by the National Science Foundation under Grant Nos: DMI-9908249 and DMI-0218169.
null
null
null
null
null
['Fearon, E.', 'Watkins, K. G.']
2020-02-14T15:50:03Z
2020-02-14T15:50:03Z
8/31/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/79988', 'http://dx.doi.org/10.26153/tsw/7013']
eng
2004 International Solid Freeform Fabrication Symposium
Open
Direct Laser Deposition
Compensation for Uneven Surfaces When Building Laser Deposited Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/46187ee2-951e-413e-82ee-d634d4837d3b/download
null
Direct Laser Deposition (DLD) is a blown-powder laser deposition process that can be used to quickly produce, modify or repair fully-dense metallic parts by a layered manufacturing method. However, uneven substrate surfaces often cause variation in the deposited layer which is magnified by succeeding layers. Research c...
null
null
null
null
null
null
['Manetsberger, K.', 'Shen, J.', 'Muellers, J.']
2019-10-18T15:25:53Z
2019-10-18T15:25:53Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76238', 'http://dx.doi.org/10.26153/tsw/3327']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Polymer
Compensation of Non-Linear Shrinkage of Polymer Materials in Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5f3cc1c7-17b7-4eb4-9cc0-b06ad23cf663/download
null
Inaccuracies in the selective laser sintering (SLS) process using polymer materials are typically caused by inhomogeneous shrinkage due to inhomogeneous temperature distribution in the powder bed of the SLS machine. These shrinking effects lead to stress in the sintered parts, causing the part to distort. The inhomogen...
null
null
null
null
null
null
['Limaye, Ameya', 'Rosen, David W.']
2020-02-21T20:56:14Z
2020-02-21T20:56:14Z
8/26/05
Mechanical Engineering
null
['https://hdl.handle.net/2152/80071', 'http://dx.doi.org/10.26153/tsw/7092']
eng
2005 International Solid Freeform Fabrication Symposium
Open
Mask Projection Stereolithography
Compensation Zone Approach to Avoid Z Errors in Mask Projection Stereolithography Builds
Conference paper
https://repositories.lib.utexas.edu//bitstreams/49b18c6d-d459-446a-bf7a-b3b56cb62f95/download
null
Print-through results in unwanted polymerization occurring beneath a part cured using Mask Projection Stereolithography (MPSLA) and thus creates error in its Z dimension. In this paper, the "Compensation zone approach" is proposed to avoid this error. This approach entails modifying the geometry of the part to be cured...
null
null
null
null
null
null
['Zhang, Meng', 'Sun, Chen-Nan', 'Zhang, Xiang', 'Chin Goh, Phoi', 'Wei, Jun', 'Li, Hua', 'Hardacre, David']
2021-11-02T15:28:25Z
2021-11-02T15:28:25Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89829
eng
2017 International Solid Freeform Fabrication Symposium
Open
['fatigue', 'porosity', 'microstructure', 'powder bed fusion', 'selective laser melting', 'stainless steel 316L']
Competing Influence of Porosity and Microstructure on the Fatigue Property of Laser Powder Bed Fusion Stainless Steel 316L
Conference paper
https://repositories.lib.utexas.edu//bitstreams/48e8051a-eb95-4ff1-9205-12cfdc4be7d2/download
University of Texas at Austin
Crack initiation constitutes a large portion of the total life for parts under high cycle fatigue loading. Materials made by the laser powder bed fusion (L-PBF) process contain unavoidable process-induced porosity whose effect on the mechanical properties needs to be considered for fatigue applications. Results from th...
null
null
null
null
null
null
['Morris, S.J.', 'Dudman, J.P.R.', 'Körner, L.', 'Melo, P.', 'Newton, L.H.', 'Clare, A.T.']
2021-11-01T22:48:11Z
2021-11-01T22:48:11Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89787
eng
2016 International Solid Freeform Fabrication Symposium
Open
['advanced surfaces', 'complex functional surface', 'additive manufacturing', 'methodology']
Complex Functional Surface Design for Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cfbd5bdd-88b8-423d-ad13-fdd5d2009341/download
University of Texas at Austin
This paper presents a new methodology for the creation of advanced surfaces which can be produced by Additive Manufacturing (AM) methods. Since there is no cost for enhanced complexity, AM allows for new capabilities in surface design. Micro-scale surface features with varying size, shape and pitch can be manufactured ...
null
null
null
null
null
null
['Li, Longmei', 'Bellehumeur C., Sun', 'Gu, P.']
2019-10-10T17:01:54Z
2019-10-10T17:01:54Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76173', 'http://dx.doi.org/10.26153/tsw/3262']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Modeling
Composite Modeling and Analysis of FDM Prototypes for Design and Fabrication of Functionally Graded Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/aad86b09-ab35-4444-8869-707364c683f1/download
null
Solid Freeform Fabrication technologies have potential to manufacture parts with locally controlled properties (LCP), which would allow concurrent design of part’s geometry and desired properties. To a certain extent, Fused Deposition Modelling (FDM) has the ability to fabricate parts with LCP by changing deposition de...
The financial support for this research was provided by the National Sciences and Engineering Research Council of Canada (NSERC) through Research Grant OGP0192173.
null
null
null
null
null
['Gervasi, V.R.', 'Crockett, R.S.']
2019-03-01T17:41:46Z
2019-03-01T17:41:46Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73520', 'http://dx.doi.org/10.26153/tsw/670']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['gradient materials', 'stereolithography']
Composites with Gradient Properties From Solid Freeform Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/69a55609-9615-40ad-a3e8-599589580d87/download
null
TetraCast is a build style developed by Milwaukee School ofEngineering involving stereolithography patterns produced with an open cellular structure inside a surface shell. Composites are created using this pattern as a host fora filler material, generally epoxy matrices loaded with various fibers or microspheres. Regi...
null
null
null
null
null
null
['Murphy, D.', 'Fashanu, O.', 'Spratt, M.', 'Newkirk, J.', 'Chandrashekhara, K.']
2021-11-30T21:10:20Z
2021-11-30T21:10:20Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90551', 'http://dx.doi.org/10.26153/tsw/17470']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'AlSi10Mg', 'compression', 'bending', 'tension']
Compressive and Bending Performance of Selectively Laser Melted AlSi10Mg Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a9e08dbc-8f5e-4fd8-8cfd-f8f2c6a2b4e0/download
University of Texas at Austin
Selective laser melting (SLM) is a widely used additive manufacturing technique that effectively manufactures complex geometries such as cellular structures. However, challenges such as anisotropy and mechanical property variation are commonly found due to process parameters. In a bid to utilize this method for the com...
null
null
null
null
null
null
['Meng, Liang', 'Wang, Zemin', 'Zeng, Xiaoyan']
2021-11-30T21:48:46Z
2021-11-30T21:48:46Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90561', 'http://dx.doi.org/10.26153/tsw/17480']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['bio-inspired structure', 'selective laser melting', 'NSGA-II', 'multi-layers']
Compressive Properties Optimization of a Bio-Inspired Lightweight Structure Fabricated via Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/91484285-2bbc-473c-b8be-32195bf2c4c2/download
University of Texas at Austin
Compressive properties optimization of a bio-inspired lightweight structure is developed by Response Surface Methodology (RSM) and Non-dominated Sorting Genetic Algorithm II (NSGA-II). Multi-layered bio-inspired structures of a Ti6Al4V alloy are designed and fabricated by Selective Laser Melting. The results show that ...
null
null
null
null
null
null
['Hu, Yingbin', 'Wang, Hui', 'Ning, Fuda', 'Cong, Weilong', 'Li, Yuzhou']
2021-10-26T20:12:32Z
2021-10-26T20:12:32Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89573
eng
2016 International Solid Freeform Fabrication Symposium
Open
['laser engineered net shaping (LENS)', 'TiBw reinforcement', 'titanium matrix composites (TMCs)', 'compressive properties']
Compressive Property Comparisons Between Laser Engineered Net Shaping of In Situ TiBw-TMCs and Cp-Ti Materials
Conference paper
https://repositories.lib.utexas.edu//bitstreams/83aa182d-d408-49fa-92d4-8fa8c0786e85/download
University of Texas at Austin
Titanium (Ti) and its alloys are widely used in chemical, astronautical, and biomedical industries. However, their poor load endurance properties affect their fields of applications especially under severe loading conditions. To enhance these properties, TiBw reinforcement was synthesized by in situ chemical reaction b...
null
null
null
null
null
null
['Gautam, Rinoj', 'Sridharan, Vijay Shankar', 'Teh, Wee Lee', 'Idapalapati, Sridhar']
2021-11-30T21:22:25Z
2021-11-30T21:22:25Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90552', 'http://dx.doi.org/10.26153/tsw/17471']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['lattice structures', 'strut-reinforced kagome', 'SRK', 'ABS', 'compressive loading', 'fused deposition modeling']
Compressive Response of Strut-Reinforced Kagome with Polyurethane Reinforcement
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5ff1f2d9-5b94-4e42-a99d-213f0083a10e/download
University of Texas at Austin
Lattice structures find immense application in lightweight structures for their high specific strength, modulus, and energy absorption. Strut-reinforced Kagome (SRK) structures provide better compressive performance compared to many existing lattice structures. In this study, the performance of acrylonitrile butadiene ...
null
null
null
null
null
null
['Sereshk, Mohammad Reza Vaziri', 'Triplett, Kevin', 'St. John, Christopher', 'Martin, Keith', 'Gorin, Shira', 'Avery, Alec', 'Byer, Eric', 'St Pierre, Conner', 'Soltani-Tehrani, Arash', 'Shamsaei, Nima']
2021-11-30T21:26:43Z
2021-11-30T21:26:43Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90553', 'http://dx.doi.org/10.26153/tsw/17472']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['mechanical properties', 'lattice structures', 'finite element method', 'laser beam powder bed fusion']
A Computational and Experimental Investigation into Mechanical Characterizations of Strut-Based Lattice Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/61d6f7cd-0fe7-4e50-a9ad-a9d1c57e8185/download
University of Texas at Austin
Strut-based lattices are widely used in structural components for reducing weight. Additive manufacturing has provided a unique opportunity to fabricate such complex geometries. In addition to the unit cell type, the strut size and shape can significantly affect the mechanical properties achieved. Therefore, furnishing...
null
null
null
null
null
null
['Das, Suman', 'Hollister, Scott J.', 'Flanagan, Colleen', 'Adewunmi, Adebisi', 'Bark, Karlin', 'Chen, Cindy', 'Ramaswamy, Krishnan', 'Rose, Daniel', 'Widjaja, Erwin']
2019-10-22T17:33:44Z
2019-10-22T17:33:44Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/76321', 'http://dx.doi.org/10.26153/tsw/3410']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Scaffolds
Computational Design, Freeform Fabrication and Testing of Nylon-6 Tissue Engineering Scaffolds
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8288f87e-18aa-428c-a074-a7a36d780f22/download
null
Approximately 100,000 people in the US alone suffer from TMJ disease to the extent that surgical reconstruction is needed. In order to reconstruct a whole joint such as the TMJ, advanced, novel fabrication methods are needed to build complex, threedimensional scaffolds incorporating multiple, functionally graded biomat...
The authors gratefully acknowledge Honeywell Plastics for a generous donation of Nylon-6 powder.
null
null
null
null
null
['Basak, Amrita', 'Acharya, Ranadip', 'Bansal, Rohan', 'Das, Suman']
2021-10-21T18:15:59Z
2021-10-21T18:15:59Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89416
eng
2015 International Solid Freeform Fabrication Symposium
Open
['equiaxed superalloys', 'Scanning Laser Epitaxy', 'optimization', 'gas turbine']
Computational Modeling and Experimental Validation of Melting and Solidification in Equiaxed Superalloys Processed through Scanning Laser Epitaxy
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f0302416-e7a2-403c-9e8d-f173649a69e5/download
University of Texas at Austin
This paper focuses on simulation-based optimization of the Scanning Laser Epitaxy (SLE) process applied to gas turbine hot-section components made of nickel-base superalloys. SLE creates equiaxed, directionally-solidified and single-crystal microstructures from superalloy powders melted onto like-chemistry substrates u...
This work is sponsored by the ONR through grants N00014-11-1-0670 and N00014-14-1-0658.
null
null
null
null
null
['Acharya, Ranadip', 'Bansal, Rohan', 'Gambone, Justin J.', 'Cilino, Paul', 'Das, Suman']
2021-10-06T21:38:23Z
2021-10-06T21:38:23Z
8/22/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88452', 'http://dx.doi.org/10.26153/tsw/15389']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['Scanning Laser Epitaxy', 'nickel-based superalloys', 'single-crystal structures', 'equiaxed, directionally-solidified structures', 'CMSX-4 alloy']
Computational Modeling and Experimental Validation of Microstructural Development in Superalloy CMSx-4 Processed through Scanning Laser Epitaxy
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d9fb5e6f-b2e9-40a4-9785-7d82c9473567/download
University of Texas at Austin
This paper focuses on computational modeling of Scanning Laser Epitaxy (SLE), an additive manufacturing technology being developed at Georgia Tech for the creation of equiaxed, directionally-solidified or single-crystal structures in nickel-based superalloys. The thermal modeling of the system, carried out in a commerc...
null
null
null
null
null
null
['Zhang, Xiaobing', 'Tuffile, Charles', 'Cheng, Bo']
2021-11-18T17:47:05Z
2021-11-18T17:47:05Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90445', 'http://dx.doi.org/10.26153/tsw/17366']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'SLM', 'computational fluid dynamics', 'CFD', 'discrete phase method', 'DPM', 'gas flow', 'spatter']
Computational Modeling of the Inert Gas Flow Behavior on Spatter Distribution in Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/74fb6b05-5f1e-4e86-bac6-535f5eb91df3/download
University of Texas at Austin
In the selective laser melting (SLM) process, the spatter, introduced by moving melt pools, can contaminate the build region and potentially reduce the part quality. A well-designed inert gas flow system can help to effectively remove the process emissions. Therefore, it is critical to understand the flow characteristi...
null
null
null
null
null
null
['Rosser, J.', 'Megahed, M.', 'Mindt, H.-W.', 'Brown, S.G.R.', 'Lavery, N.P.']
2021-11-18T17:11:02Z
2021-11-18T17:11:02Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90432', 'http://dx.doi.org/10.26153/tsw/17353']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['line tracks', 'laser tracks', 'IN625', 'laser powder bed fusion']
Computational Modelling and Experimental Validation of Single In625 Line Tracks in Laser Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e41c0b80-19d4-48ac-8ea2-fa6ff662d859/download
University of Texas at Austin
Laser track experiments are performed using INCONEL® nickel-based powder alloy, IN625, in a Powder Bed Fusion (PBF) system. Optical microscopy is used to obtain key track dimensions and morphology for various machine parameters, allowing direct validation of ESI Group’s ICME suite of tools for modelling AM. The high-fi...
null
null
null
null
null
null
['Gwynn, Daniel', 'Gundimeda, Sree Samhita', 'Menon, Nandana', 'Basak, Amrita']
2023-01-26T15:02:22Z
2023-01-26T15:02:22Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117314', 'http://dx.doi.org/10.26153/tsw/44195']
deu
2022 International Solid Freeform Fabrication Symposium
Open
Additive manufacturing
A Computational Study Summarizing the Effects of Composition on the Melt Pool Geometry in Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/08d71bf5-38d0-4eea-a9bf-37be567c19f2/download
null
Thermophysical properties play a crucial role in controlling the melt pool dimensions in metal additive manufacturing (AM). It is, therefore, imperative to understand the impact of thermophysical properties on the melt pool dimensions for critical materials such as nickel-based superalloys. In this paper, a three-di...
null
null
null
null
null
null
['Kelly, Brett E.', 'Bhattacharya, Indrasen', 'Shusteff, Maxim', 'Taylor, Hayden K.', 'Spaddacini, Christopher M.']
2021-11-02T20:41:27Z
2021-11-02T20:41:27Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89892
eng
2017 International Solid Freeform Fabrication Symposium
Open
['computed axial lithography', '3D parts', 'additive manufacturing']
Computed Axial Lithography for Rapid Volumetric 3D Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/075a1deb-26f8-43ba-ab04-0d6637aa873e/download
University of Texas at Austin
The vast majority of additive manufacturing processes today operate by printing voxels serially point-by-point to build up a 3D part. In some higher throughput techniques, for example optical printing methods such as projection stereolithography [1], [2], parts are printed layer-by-layer by curing full 2D (very thin in...
null
null
null
null
null
null
['Isanaka, Sriram Praneeth', 'Sridhar, Amar Bala', 'Liou, Frank', 'Newkirk, Joseph W.']
2021-09-30T18:53:13Z
2021-09-30T18:53:13Z
9/23/10
Mechanical Engineering
null
['https://hdl.handle.net/2152/88278', 'http://dx.doi.org/10.26153/tsw/15219']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['metal deposition', 'deposit contouring', 'coordinate measurement', '3D scanning', 'curve fitting', 'contact angle', 'ripple effect']
Computer Aided Contour Profiling of High Strength Deposits
Conference paper
https://repositories.lib.utexas.edu//bitstreams/183559fd-b5c4-464e-8364-b0ee2217acef/download
University of Texas at Austin
Additive manufacturing processes suffer from the effect of ripples, edge rounding and surface variations. To reduce their effect, ideal process parameters for the laser deposition process were investigated. Also, a new method was identified to analyze deposits by accurately plotting their contours. This was achieved th...
null
null
null
null
null
null
Crawford, Richard H.
2018-05-03T17:42:34Z
2018-05-03T17:42:34Z
1993
Mechanical Engineering
doi:10.15781/T2VM43F32
http://hdl.handle.net/2152/65046
eng
1993 International Solid Freeform Fabrication Symposium
Open
['Department of Mechanical Engineering', 'SFF', 'Three Dimensional Printing', 'geometric models']
Computer Aspects of Solid Freeform Fabrication: Geometry, Process Control, and Design
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ebff9bda-ddd3-400b-abdd-a807e75c64ee/download
null
Solid Freefonn Fabrication (SFF) is a class of manufacturing technologies aimed at the production of mechanical components without part-specific tooling or process planning. Originally used for creating modelsfor visualization, many industrial users of SFF technologies are realizing the greater potentialofSFF as legiti...
null
null
null
null
null
null
['Mohebi, Masoud M.', 'Yang, Shoufeng', 'Evans, Julian R. G.']
2020-03-02T15:36:48Z
2020-03-02T15:36:48Z
2006
Mechanical Engineering
null
['https://hdl.handle.net/2152/80135', 'http://dx.doi.org/10.26153/tsw/7156']
eng
2006 International Solid Freeform Fabrication Symposium
Open
Solid freeforming
Computer Generation of Metal Components by Simultaneous Deposition of Mould, Cores and Part
Conference paper
https://repositories.lib.utexas.edu//bitstreams/03c936a0-e214-41da-9936-d9976d0a61f7/download
null
A new solid freeforming method based on co-delivery of mould powder materials and part powder materials using vibration-controlled, dry powder valves is presented in this paper. Thin layers of stainless steel powder are delivered to the forming area according to the cross-section of the CAD file to produce the componen...
null
null
null
null
null
null
['Wang, Jia-Chang', 'Wang, Jun-Ming', 'Lin, Tsung Te', 'Jeng, Jeng-Ywan']
2019-10-18T16:00:33Z
2019-10-18T16:00:33Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76244', 'http://dx.doi.org/10.26153/tsw/3333']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Adaptive Slicing
Computer Integrated Adaptive Slicing and Vision Technologies for High Performance Rapid Prototyping System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/26e08cf1-98fe-4e8e-92ec-f3add531fcf6/download
null
This paper discusses the application of adaptive slicing algorithm and computer vision technology on Rapid Prototyping (RP) system to enhance fabrication performance of Model Maker (MM) RP system. Usually, the layer number determines the RP system performance in terms of fabrication time and accuracy. In this research,...
The support of this research by the National Science Council of Taiwan, ROC under grant NSC-88-2212-E-011-026.
null
null
null
null
null
['Reiher, T.', 'Vogelsang, S.', 'Koch, R.']
2021-11-02T20:34:53Z
2021-11-02T20:34:53Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89890
eng
2017 International Solid Freeform Fabrication Symposium
Open
['geometry generation', 'computer integration', 'CAD system', 'optimization', 'additive manufacturing']
Computer Integration for Geometry Generation for Product Optimization with Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/477f6543-9156-4506-9288-f0647892bc53/download
University of Texas at Austin
Designing parts for additive manufacturing (AM) offers a broad range of geometrical and functional potentials. On the one hand the manufacturing technology offers the possibility of manufacturing highly complex freeform shapes, often referred to as bionic shapes. By use of these, perfect force fluxes without stress ris...
null
null
null
null
null
null
['Flach, Lawrance', 'Chartoff, Richard P.']
2018-04-12T17:18:53Z
2018-04-12T17:18:53Z
1990
Mechanical Engineering
doi:10.15781/T2MC8S000
http://hdl.handle.net/2152/64268
eng
1990 International Solid Freeform Fabrication Symposium
Open
['Department of Chemical and Materials Engineering', 'Rapid Prototype Development Laboratory', 'Center for Basic and Applied Polymer Research']
A Computer Model for Laser Photopolymerization
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5ec0f045-a8a1-49c2-93b0-13c4008a984a/download
null
A computer model for a laser induced photopolymerization process has been established which simulates stereolithography. The model couples irradiation, chemical reaction, and heat transfer equations to provide insights into rate processes occurring in the volume element contacted by the laser beam. Quantities predicted...
null
null
null
null
null
null
['Bernard, Alain', 'Davillerd, Stephane', 'Sidot, Benoit']
2019-03-11T16:49:23Z
2019-03-11T16:49:23Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73584', 'http://dx.doi.org/10.26153/tsw/726']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['CAD', '3D-laser sensor']
Computer-Aided Process Planning for automatic generation of 3D digitizing process for laser sensors
Conference paper
https://repositories.lib.utexas.edu//bitstreams/caaad483-ba71-4ddd-aa85-24790db64965/download
null
This paper introduces some results of a research work carried out on the automation of digitization process ofcomplex parts using a precision 3D-laser sensor. It will be presented a new way to scan automatically a complex 3-D part in order to measure and to compare the acquired data with the reference CAD model. Due to...
null
null
null
null
null
null
['Xiong, Yi', 'Dharmawan, Audelia Gumarus', 'Tang, Yunlong']
2021-11-18T16:46:36Z
2021-11-18T16:46:36Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90423', 'http://dx.doi.org/10.26153/tsw/17344']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['process planning', 'directed energy deposition', 'knowledge-based engineering', 'design for additive manufacturing']
Computer-Aided Process Planning for Wire Arc Directed Energy Deposition
Conference paper
https://repositories.lib.utexas.edu//bitstreams/13ca29d4-c582-4d6a-8478-a441fb7027c9/download
University of Texas at Austin
Wire arc directed energy deposition provides a rapid and cost-effective method for fabricating low-to-medium complexity and medium-to-large size metal parts. However, the complex nonequilibrium phase transformations, inherent to this process, make it a challenging task to produce consistent and high-quality parts, espe...
null
null
null
null
null
null
['Cima, M.J.', 'Sachs, E.', 'Cima, L.G.', 'Yoo, J.', 'Khanuja, S.', 'Borland, S.W.', 'Wu, B.', 'Giordano, R.A.']
2018-10-03T15:25:24Z
2018-10-03T15:25:24Z
1994
Mechanical Engineering
doi:10.15781/T2959CS8Q
http://hdl.handle.net/2152/68644
eng
1994 International Solid Freeform Fabrication Symposium
Open
['Microstructures', '3D Printing', 'Solid free-form fabrication']
Computer-derived microstructures by 3D Printing: Sio- and Structural Materials
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d9cbed21-790b-4677-8490-1af1aa108dcf/download
null
3D Plinting is a rapid prototyping technique to manufacture functional components directly from computer models. The process involves spreading the powder in thin layers and then selective binding of the powder using a technology similar to ink-jet ptinting. Layers are added sequentially until a part is completed. 3DP ...
null
null
null
null
null
null
Thompson, Scott M.
2021-11-16T15:43:56Z
2021-11-16T15:43:56Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90319', 'http://dx.doi.org/10.26153/tsw/17240']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['design for additive manufacturing', 'education', 'training', 'conceptual design']
Conceptual Design for Additive Manufacturing: Lessons Learned from an Undergraduate Course
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c58786fc-f646-4e80-b22d-81c2bc03dd70/download
University of Texas at Austin
Design for additive manufacturing (DfAM) guidelines continue to emerge and evolve as various additive manufacturing (AM) technologies, and the knowledge of their associated end-users/designers, matures. This work summarize important pedagogical and technical lessons learned from the conceptual re-design of several, div...
null
null
null
null
null
null
['Yang, S.', 'Zhao, Y.F.']
2021-11-01T20:42:42Z
2021-11-01T20:42:42Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89740
eng
2016 International Solid Freeform Fabrication Symposium
Open
['assembly-level DFAM', 'conceptual design', 'additive manufacturing', 'functional design', 'FBS modeling']
Conceptual Design for Assembly in the Context of Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e552f158-8b8b-44ac-aa73-92636b7d935a/download
University of Texas at Austin
As additive manufacturing (AM) emerges as an end-of-use product manufacturing process, design for additive manufacturing (DFAM) as a new design philosophy receives more and more attention. However, current DFAM research focuses on downstream and part-level design activities such as structural optimization and design ru...
null
null
null
null
null
null
['Gobert, Christian', 'Arrieta, Edel', 'Belmontes, Adrian', 'Wicker, Ryan B.', 'Medina, Francisco', 'McWilliams, Brandon']
2021-11-16T16:12:15Z
2021-11-16T16:12:15Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90329', 'http://dx.doi.org/10.26153/tsw/17250']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['machine learning', 'additive manufacturing', 'conditional generative adversarial networks', 'in-situ monitoring']
Conditional Generative Adversarial Networks for In-Situ Layerwise Additive Manufacturing Data
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a2948b08-58a6-490a-a826-bb4a20d9f4d0/download
University of Texas at Austin
Conditional generative adversarial networks (CGANs) learn a mapping from conditional input to observed image and perform tasks in image generation, manipulation and translation. In-situ monitoring uses sensors to obtain real-time information of additive manufacturing (AM) processes that relate to process stability and ...
null
null
null
null
null
null
['Gibbons, D.W.', 'Ko, H.']
2021-12-01T22:13:55Z
2021-12-01T22:13:55Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90635', 'http://dx.doi.org/10.26153/tsw/17554']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['configuration control', 'additive manufacturing', 'digital twins']
Configuration Control for Additive Manufacturing Digital Twins
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3e8d0dd2-ea51-4d00-8ecf-938161d2a135/download
University of Texas at Austin
The additive manufacturing workflow is a ductile entity, often varying depending on the design, the product, the process, the material, and the application. Information models and schemas have been developed that can provide structure to data and information throughout the workflow. The result has been a well-character...
null
null
null
null
null
null
['Hopkinson, Neil', 'Dickens, Phill']
2019-09-23T17:09:49Z
2019-09-23T17:09:49Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75976', 'http://dx.doi.org/10.26153/tsw/3075']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Sintered
Conformal Cooling and Heating Channels using Laser Sintered Tools 490
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6771c526-9d82-4307-be58-022cd63dcfd9/download
null
The EOS Direct Metal Laser Sintering (DMLS) and DTM Rapid Steel 2 processes may be used to create tools incorporating conformal channels behind the tool surface through which fluids may be passed. To date, a significant amount of work has been carried out to investigate the efficiency of using conformal channels to coo...
null
null
null
null
null
null
['Nguyen, Jason', 'Park, Sang-In', 'Rosen, David W.', 'Folgar, Luis', 'Williams, James']
2021-10-05T15:58:51Z
2021-10-05T15:58:51Z
2012
Mechanical Engineering
null
['https://hdl.handle.net/2152/88400', 'http://dx.doi.org/10.26153/tsw/15339']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'Conformal Lattice Structures', 'computer-aided design', 'stress distributions', 'heuristic', 'Micro Air Vehicle']
Conformal Lattice Structure Design and Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/446e81f5-c1a0-4631-af72-897a0d6cf767/download
University of Texas at Austin
One application of additive manufacturing is for fabrication of customized, light-weight material called Conformal Lattice Structures (CLS), a type of cellular structure with dimensions of 0.1 to 10 mm. In this paper, two advances are reported for designing CLS. First, computer-aided design technologies were developed ...
null
null
null
null
null
null
['Hayasi, Mohammad', 'Asisbanpour, Bahram']
2021-10-06T21:12:35Z
2021-10-06T21:12:35Z
8/15/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88445', 'http://dx.doi.org/10.26153/tsw/15382']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['sloped-edge adaptive slicing', '5-axis cutting', 'rapid functional part fabrication', 'rapid tooling', 'fully dense freeform fabrication (FDFF)']
Conformed-to-CAD Design Sloped-Edge Adaptive Splicing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d50a515a-c02d-4fc8-8781-6a4c81d8e943/download
University of Texas at Austin
Many mathematical and simulation based researches have shown the effectiveness of adaptive and angular slicing and layering in minimizing errors in layered manufacturing processes and improving surface quality and build time. Recent technological advances such as 5-axis laser cutters, abrasive waterjets, and CNC machin...
null
null
null
null
null
null
['Kigure, T.', 'Yamauchi, Y.', 'Ninno, T.']
2024-03-25T22:22:01Z
2024-03-25T22:22:01Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124319', 'https://doi.org/10.26153/tsw/50927']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['PEEK', 'laser sintering', 'temperature', 'additive manufacturing']
Considerations of internal void generation process by observation of melting and solidification behavior in low temperature laser sintering of PEEK
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6d880f5e-d1ca-48cb-a2f6-097bedbc2d33/download
University of Texas at Austin
Laser sintering of PEEK performed below the crystallization temperature has been achieved in previous study by low temperature process that anchors the part to a rigid base plate to suppress warpage during processing. However, significant surface roughness and large internal voids are sometimes generated in the parts b...
null
null
null
null
null
null
['Schumacher, Christian', 'Schöppner, Volker', 'Guntermann, Jonas']
2021-11-02T17:50:01Z
2021-11-02T17:50:01Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89837
eng
2017 International Solid Freeform Fabrication Symposium
Open
['machine-specific influence', 'process-specific influence', 'custom-built', 'fused deposition modeling']
Considering Machine- and Process-Specific Influences to Create Custom-Built Specimens for the Fused Deposition Modeling Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/53b73205-c410-49f7-9e9b-edd065fb0eaa/download
University of Texas at Austin
Compared to conventional polymer processing technologies the material selection in the Fused Deposition Modelling (FDM) process is restricted. To expand the range of materials the requirements for the material properties and the semi-finished products (filaments) must be clarified. For this, a machine- and process-inde...
null
null
null
null
null
null
['Khoshnevis, Behrokh', 'Yuan, Xiao', 'Zahiri, Behnam', 'Xia, Bin']
2021-10-21T22:02:09Z
2021-10-21T22:02:09Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89455
eng
2015 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'Contour Crafting', 'sulfur concrete', 'planetary']
Construction by Contour Crafting Using Sulfur Concrete with Planetary Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/312e1f1d-0866-4842-9134-159c8902fc33/download
University of Texas at Austin
This paper reports on the experiments with the Contour Crafting Automated Construction process using sulfur concrete as the choice of construction material. Sulfur concrete has numerous terrestrial applications and is potentially an ideal construction material for planetary construction. On Mars, sulfur can be found in...
null
null
null
null
null
null
['Shen, Yiju', 'Li, Yingqi', 'Tsai, Hai-Lung']
2021-11-02T19:42:52Z
2021-11-02T19:42:52Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89878
eng
2017 International Solid Freeform Fabrication Symposium
Open
['metallic glass', 'laser-foil-printing', 'amorphous foils', 'foils', 'additive manufacturing']
Construction of Metallic Glass Structures by Laser-Foil-Printing Technology
Conference paper
https://repositories.lib.utexas.edu//bitstreams/324f4cea-abc3-49b4-9d49-cadff220bd28/download
University of Texas at Austin
Metallic glasses (MGs) have superior mechanical properties such as high tensile strength, hardness, and corrosion resistance, as compared to crystalline metals. Although newly developed MGs have significantly reduced critical cooling rates down to 10 K/s, products of MGs are still limited to simple geometries such as f...
null
null
null
null
null
null
['Lawrence, Jacob', 'Peña Vega, Hector Andres', 'Stegman, Bryant', 'Roberts, Caleb', 'Spencer, Joseph', 'James, Clinton', 'Christensen, McKay', 'Crane, Nathan']
2023-01-31T13:52:42Z
2023-01-31T13:52:42Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117366', 'http://dx.doi.org/10.26153/tsw/44247']
eng
2022 International Solid Freeform Fabrication Symposium
Open
Binder jetting
Construction of Open-Source Laboratory-Scale Binder Jetting System for High-Speed Synchrotron X-Ray Imaging
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b4bf55d2-8f94-4994-a64b-db93293cd0ca/download
null
Although commercial binder jetting (BJ) printers are available, they typically do not allow sufficient control over process parameters needed to study fundamental process characteristics. This work presents an overview of the design and construction of a custom BJ system used to observe fundamental phenomena in the ...
null
null
null
null
null
null
['Lawrence, Jacob', 'Peña Vega, Hector Andres', 'Stegman, Bryant', 'Roberts, Caleb', 'Spencer, Joseph', 'James, Clinton', 'Christensen, McKay', 'Crane, Nathan']
2023-01-27T18:04:50Z
2023-01-27T18:04:50Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117352', 'http://dx.doi.org/10.26153/tsw/44233']
eng
2022 International Solid Freeform Fabrication Symposium
Open
Binder jetting
Construction of Open-Source Laboratory-Scale Binder Jetting System for High-Speed Synchrotron X-Ray Imaging
Conference paper
https://repositories.lib.utexas.edu//bitstreams/69e75d53-cecd-4a1c-86f3-852e31c88878/download
null
Although commercial binder jetting (BJ) printers are available, they typically do not allow sufficient control over process parameters needed to study fundamental process characteristics. This work presents an overview of the design and construction of a custom BJ system used to observe fundamental phenomena in the ...
null
null
null
null
null
null
['Hoglund, R.', 'Smith, D.E.']
2021-10-28T14:53:59Z
2021-10-28T14:53:59Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89657
eng
2016 International Solid Freeform Fabrication Symposium
Open
['topology optimiation', 'continuous fiber angle optimization', 'fused filament fabrication']
Continuous Fiber Angle Topology Optimization for Polymer Fused Filament Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/de984a93-2713-4dab-9ae9-2f1b8de6f70b/download
University of Texas at Austin
Mechanical properties of parts produced with the Fused Filament Fabrication (FFF) process are known to be dependent on the printed bead direction, especially when short carbon fiber reinforcement is added to the filament. Given that many FFF filament suppliers now offer carbon-fiber filled products, a unique opportunit...
null
null
null
null
null
null
['Mei, Junfeng', 'Lovell, Michael', 'Mickle, Marlin', 'Heston, Steve']
2020-02-13T20:44:18Z
2020-02-13T20:44:18Z
9/1/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/79975', 'http://dx.doi.org/10.26153/tsw/7000']
eng
2004 International Solid Freeform Fabrication Symposium
Open
photolithography
Continuous ink-jet printing electronic components using novel conductive inks
Conference paper
https://repositories.lib.utexas.edu//bitstreams/72de18f3-16ae-434c-b0dd-94b6d166cdca/download
null
To reduce the cost of electronics fabrication and to take advantage of numerous potential specialized applications, a novel process of manufacturing three-dimensional electronic products is introduced in the present investigation. This process, which is currently being patented by the University of Pittsburgh, utilizes...
null
null
null
null
null
null
['Yeung, H.', 'Lane, B.', 'Fox, J.', 'Kim, F.', 'Heigel, J.', 'Neira, J.']
2021-11-03T22:39:47Z
2021-11-03T22:39:47Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89953
eng
2017 International Solid Freeform Fabrication Symposium
Open
['continuous laser scan', 'build speed', 'laser powder bed fusion', 'National Institute Standards and Technology', 'NIST']
Continuous Laser Scan Strategy for Faster Build Speeds in Laser Powder Bed Fusion System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cde24878-27fc-41ea-a6be-131544f49b50/download
University of Texas at Austin
Research has shown significant influence of laser scan strategy on various part qualities in the laser powder bed fusion additive manufacturing process. The National Institute of Standards and Technology developed the Additive Manufacturing Metrology Testbed, which provides open architecture for flexible control and mo...
null
null
null
null
null
null
['Altenhofen, C.', 'Luu, T.H.', 'Grasser, T.', 'Dennstädt, M.', 'Mueller-Roemer, J.S.', 'Weber, D.', 'Stork, A.']
2021-11-11T16:32:25Z
2021-11-11T16:32:25Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90238', 'http://dx.doi.org/10.26153/tsw/17159']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['material gradients', 'property gradadtion', 'multi-materials', '3D printing']
Continuous Property Gradation for Multi-Material 3D-Printed Objects
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8580c856-99cd-4fe5-b48f-e6b717de3b1e/download
University of Texas at Austin
Modern AM processes allow for printing multiple materials. The resulting objects can be stiff/dense in some areas and soft/porous in others, resulting in distinct physical properties. However, modeling material gradients is still tedious with current approaches, especially when smooth transitions are required. Current ...
null
null
null
null
null
null
['Dwivedi, Rajeev', 'Dwivedi, Indira', 'Dwivedi, Bharat']
2023-01-27T17:44:08Z
2023-01-27T17:44:08Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117344', 'http://dx.doi.org/10.26153/tsw/44225']
eng
2022 International Solid Freeform Fabrication Symposium
Open
staircase effect
Continuous Sculpting as a Novel Method to Reduce the Staircase Effect in Solidfreeform Fabrication Processes that Are Dependent on Phase Transformation
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1a187172-12f1-482b-b3df-c886047f35b4/download
null
Inherent to 2-1/2 axis deposition in Solid Freeform Fabrication is Staircase effect. The surface geometry of parts produced using Solid Freeform Fabrication, therefore is not smooth. Continuous sculpting is a novel method that combines additive manufacturing to surface modification by relative motion of a forming to...
null
null
null
null
null
null
['Wu, Ying-Jeng Engin', 'Beaman, J.J.']
2018-04-10T19:15:04Z
2018-04-10T19:15:04Z
1990
Mechanical Engineering
doi:10.15781/T2T14V62C
http://hdl.handle.net/2152/64249
eng
1990 International Solid Freeform Fabrication Symposium
Open
['geometric contour', 'SFF application', 'speed']
Contour Following for Scanning Control in SFF Application : Control Trajectory Planning
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7fb9c2b7-5ae9-4f9e-aadb-e1ba74cf6cec/download
null
Geometric contour following for scanning control in SFF application is used to refine the boundary ofthe parts for increasing the accuracy or to develop the capability to arrange various scanning directions and paths for improving the part strength. The scanners must be driven to follow the prescribed path as fast as p...
null
null
null
null
null
null
['Tse, L.Y.L.', 'Kapila, S.', 'Barton, K.']
2021-10-28T15:45:51Z
2021-10-28T15:45:51Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89667
eng
2016 International Solid Freeform Fabrication Symposium
Open
['fiber reinforced polymers', 'additive manufacturing', 'contoured 3D printing', '3D printing']
Contoured 3D Printing of Fiber Reinforced Polymers
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a74a686d-3bc4-471a-958b-dd4939ad0818/download
University of Texas at Austin
Additive manufacturing (AM) is a cost effective approach for small-scale production, providing higher design flexibility and less material waste than traditional manufacturing techniques. Polymers constitute one of the most popular AM materials, yielding lightweight but inherently weak components that cannot hold up ag...
null
null
null
null
null
null
['Seufzer, W. J.', 'Taminger, K. M.']
2020-03-09T13:16:09Z
2020-03-09T13:16:09Z
2007
Mechanical Engineering
null
['https://hdl.handle.net/2152/80171', 'http://dx.doi.org/10.26153/tsw/7190']
eng
2007 International Solid Freeform Fabrication Symposium
Open
Electron Beam Free Form Fabrication
Control Methods for the Electron Beam Free Form Fabrication Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8542016b-f8b5-45a9-a934-7f8601b77574/download
null
Engineering a closed-loop control system for an electron beam welder for additive manufacturing is challenging. For earth and space based applications, components must work in a vacuum and optical components must be protected from becoming occluded with metal vapor. For extraterrestrial applications added components in...
null
null
null
null
null
null
['Boddu, Mallikharjuna R.', 'Landers, Robert G.', 'Liou, Frank W.']
2019-10-18T16:19:50Z
2019-10-18T16:19:50Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76251', 'http://dx.doi.org/10.26153/tsw/3340']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Laser Cladding
Control of Laser Cladding for Rapid Prototyping--a Review
Conference paper
https://repositories.lib.utexas.edu//bitstreams/70109e14-caa4-45bf-8995-d0b4fac574f2/download
null
Lasers have wide–ranging applications in the manufacturing field (e.g., cladding, welding, cutting, machining, drilling). Extensive work is being conducted to apply laser cladding as a Rapid Prototyping (RP) process. In this paper the authors illustrate various principles of laser cladding in rapid prototyping. Importa...
null
null
null
null
null
null
['Chin, R.K.', 'Beuth, J.L', 'Amon, C.H.']
2018-11-02T14:15:36Z
2018-11-02T14:15:36Z
1995
Mechanical Engineering
doi:10.15781/T2PG1J73P
http://hdl.handle.net/2152/69329
eng
1995 International Solid Freeform Fabrication Symposium
Open
['Shape Deposition Manufacturing', 'carbon steel', 'inelastic compression-tension']
Control of Residual Thermal Stresses in Shape Deposition Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a8ca57b1-c209-4e55-a861-2dd9dd7b8e31/download
null
Layer-level thermal and mechanical modeling ofthe microcasting stage of ShaPe Deposition Manufacturing is presented. Thermo-mechanical models of carbon steel deposited onto a carbon steel substrate are described. Mechanics modeling addresses the issue of residual stress build-up. The effects of substrate heating and be...
null
null
null
null
null
null
['Yang, Feifei', 'Jiang, Tianyu', 'Chen, Xu', 'Lalier, Greg', 'Bartolone, John']
2021-12-01T23:50:07Z
2021-12-01T23:50:07Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90663', 'http://dx.doi.org/10.26153/tsw/17582']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['selective laser sintering', 'surface quality', 'polyamide 12', 'additive manufacturing']
A Control of Surface Quality in Selective Laser Sintering Additive Manufacturing with Reclaimed Polyamide Materials
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4a47d471-d13e-4d87-af94-bfd7ef098d30/download
University of Texas at Austin
In selective laser sintering (SLS) additive manufacturing (AM), a substantial amount of polyamide 12 materials remains un-sintered, recyclable, and reusable. However, using reclaimed polyamide 12 powder in SLS results in undesirable part surface finish. Very limited research has been done on the improvement of part sur...
null
null
null
null
null
null
['Wang, Jiwen', 'Shaw, Leon L.', 'Marcus, Harris L.', 'Cameron, T.B.']
2019-11-21T17:48:04Z
2019-11-21T17:48:04Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78543', 'http://dx.doi.org/10.26153/tsw/5599']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Cross Section
Control of the Cross Section Geometry of Extruded Dental Porcelain Slurries for Rapid Prototyping Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/06ad576b-bf4e-4b46-a1d5-3aa01017c6a8/download
null
This study investigates the dependence of the cross section geometry of extruded dental porcelain slurries on the rheological property of the slurry and the extrusion conditions. It is found that a pseudoplastic slurry is a basic requirement for obtaining extruded lines with rectangular cross sections. The cross sectio...
The authors gratefully acknowledge financial support provided by the National Science Foundation under Grant Nos: DMI-9908249 and DMI-0218169.
null
null
null
null
null
['Capps, Nicholas', 'Goldstein, Jonathan', 'Landers, Robert', 'Kinzel, Edward']
2024-03-26T20:27:20Z
2024-03-26T20:27:20Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124396', 'https://doi.org/10.26153/tsw/51004']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'glass']
Control of Track Morphology in Digital Glass Forming
Conference paper
https://repositories.lib.utexas.edu//bitstreams/8a88a902-81ae-421d-a01d-7e93c7eb50ae/download
University of Texas at Austin
Digital Glass Forming involves locally heating a glass filament using a laser while continuously feeding relative to the workpiece. This enables precise control of the viscosity of the molten region. This viscous melt pool is deformed by forces from the filament and workpiece. This paper investigates the relationships ...
null
null
null
null
null
null
['Comb, James W.', 'Priedman, William R.']
2018-05-03T17:11:43Z
2018-05-03T17:11:43Z
1993
Mechanical Engineering
doi:10.15781/T2CJ8836K
http://hdl.handle.net/2152/65042
eng
1993 International Solid Freeform Fabrication Symposium
Open
['Stratasys', 'Fused Deposition Modeling', 'FDM']
Control Parameters and Materials Selection Criteria for Rapid Prototyping Systems
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3bd0a48d-d944-45de-92c8-f76d39af5a92/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 ofusers and manufacturers ofrapid prototyping equipment. These improvements contribute signifi...
null
null
null
null
null
null
['Nycz, Andrzej', 'Noakes, Mark W.', 'Masuo, Christopher J.', 'Love, Lonnie J.']
2021-11-11T16:19:33Z
2021-11-11T16:19:33Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90234', 'http://dx.doi.org/10.26153/tsw/17155']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['control system framework', 'control system', 'G-code', 'printing paths', '3D printing', 'robot manipulator', 'robotic arm', 'degrees of freedom']
Control System Framework for Using G-Code-Based 3D Printing Paths on a Multi-Degree of Freedom Robotic Arm
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6948cc90-39cc-4d0a-9533-1619a6e00f8e/download
University of Texas at Austin
This paper describes a control system framework using G-Code-based 3D printing paths on a serial link robot manipulator with multiple degrees of freedom. Usually, G-Code is created by a software application, commonly referred to as a slicer, meant for gantry systems. However, G-Code does not address the kinematic compl...
null
null
null
null
null
null
['Levy, Gideon N.', 'Boehler, Paul', 'Martinoni, Raffaele', 'Schindel, Ralf', 'Schleiss, Peter']
2020-02-21T14:38:53Z
2020-02-21T14:38:53Z
2005
Mechanical Engineering
null
['https://hdl.handle.net/2152/80057', 'http://dx.doi.org/10.26153/tsw/7079']
eng
2005 International Solid Freeform Fabrication Symposium
Open
['Rapid Prototyping', 'Selective Laser Sintering', 'Elastomer']
Controlled Local Properties in the Same Part with Sintaflex A New Elastomer Powder Material for the SLS Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0c33c8bd-2c49-43e2-bb01-f7af105e54d9/download
null
A new powder material for the SLS (Selective Laser Sintering) process was recently released. The material is a result of fruitful research programs involving industry and university. The well known and widely used DuraFom™ (PA12) and theCastForm™ (PS) SLS-materials were developed by the same team. In the search for new...
null
null
null
null
null
null
['Liu, Y.', 'Beck, S.', 'Nicolleau, F.', 'Majewski, C.E.']
2021-10-12T18:04:16Z
2021-10-12T18:04:16Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88709', 'http://dx.doi.org/10.26153/tsw/15643']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['Sierpinski pyramids', 'laser sintering', 'air flow', 'turbulence', 'fluid flow', 'flow control']
Controlled Multi-Scale Turbulence through the Use of Laser Sintered Sierpinski Pyramids
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e696ae79-c58c-41a7-ad2e-24eb85c25d02/download
University of Texas at Austin
The research presented here is the result of a new collaboration between the Centre for Advanced Additive Manufacturing (AdAM) and the Thermofluids group at The University of Sheffield, regarding the use of fractal geometries for the control and influence of fluid flow. It is believed that the use of multiscale objects...
null
null
null
null
null
null
['Zak, Gene', 'Shiu, Matthew']
2019-10-09T16:22:45Z
2019-10-09T16:22:45Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76155', 'http://dx.doi.org/10.26153/tsw/3244']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Laminated
Controlled-Depth Laser Cutting of Aluminum Sheet for Laminated Object Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/199d09b0-7ef3-4529-bdf8-5417483beaf6/download
null
Replacing paper with metal in laminated object manufacturing would bring improvements in terms of part's longevity, and its mechanical and thermal properties. In fabricating laminated parts, a challenging step is blind cutting of the metal sheet. Challenges to overcome are (1) maintaining consistent depth of cut, (2) a...
We gratefully acknowledge the financial support of Centre for Automotive Materials and Manufacturing and Canada Foundation for Innovation.
null
null
null
null
null
['Liu, Bochuan', 'Gibbons, Gregory J.']
2024-03-25T23:31:12Z
2024-03-25T23:31:12Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124337', 'https://doi.org/10.26153/tsw/50945']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['L-PBF', 'preferential evaporation', 'chemical composition', 'AlSi10Mg', 'tensile properties', 'additive manufacturing']
CONTROLLING CHEMICAL COMPOSITION CHANGES IN LASER POWDER BED FUSION OF ALSI10MG
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f4113aa3-b725-4bfa-b788-deb8cc177641/download
University of Texas at Austin
Due to the large energy input during the laser powder bed fusion process, some elements of metal alloy will reach vaporisation temperature. Significant differences between the volatility of various elements in the alloy may change the chemical composition after manufacturing. This study used this preferential evaporati...
null
null
null
null
null
null
['Palmer, E.', 'Rosser, J.', 'Ritchie, M.', 'Bromley, C.', 'Brown, S.G.R.', 'Lavery, N.P.']
2023-03-30T16:00:37Z
2023-03-30T16:00:37Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117694', 'http://dx.doi.org/10.26153/tsw/44573']
eng
2022 International Solid Freeform Fabrication Symposium
Open
IN625
Controlling Grain Evolution of IN625 Parts Produced by LPBF-AM
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1e256991-f838-498b-b0c5-f533f7ea6916/download
null
Laser Powder Bed Fusion (LPBF) Additive Manufacturing (AM) is rapidly being adopted globally due to its capability of producing complex net-shape parts in a range of alloys with mechanical properties as good as, or better than conventional processes. The alluring possibility is in controlling microstructural feature...
null
null
null
null
null
null
['Soylemez, Emrecan', 'Beuth, Jack L.']
2021-09-30T19:01:40Z
2021-09-30T19:01:40Z
2010
Mechanical Engineering
null
['https://hdl.handle.net/2152/88280', 'http://dx.doi.org/10.26153/tsw/15221']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['electron beam-based additive manufacturing', 'melt pool dimension', 'material deposition rates', 'electron beam deposition', 'electron beam']
Controlling Melt Pool Dimensions Over a Wide Range of Material Deposition Rates in Electron Beam Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/084f5aa6-1f5c-4494-babc-58dfcad0c981/download
University of Texas at Austin
Electron beam-based additive manufacturing processes are being seriously considered for manufacturing and repair applications in the aerospace industry. To be successful, these processes must work over a wide range of material deposition rates to combine affordability (requiring high deposition rates) with the ability ...
null
null
null
null
null
null
['Starr, Thomas L.', 'Rafi, Khalid', 'Stucker, Brent', 'Scherzer, Christopher M.']
2021-10-06T19:55:31Z
2021-10-06T19:55:31Z
8/22/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88426', 'http://dx.doi.org/10.26153/tsw/15363']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'stainless steels', 'phase composition']
Controlling Phase Composition in Selective Laser Melted Stainless Steels
Conference paper
https://repositories.lib.utexas.edu//bitstreams/971821cb-85d6-43ad-9cbb-380adfe40b8c/download
University of Texas at Austin
Commercially important stainless steels can be austenitic or martensitic and this phase composition fundamentally controls the mechanical properties of the material. With selective laser melting (SLM), 17-4 stainless steel can be produced in either phase depending on powder composition, SLM conditions and post-build he...
null
null
null
null
null
null
['Fussell, P.S.', 'Kirchner, H.O.K', 'Prinz, F.B.', 'Weiss, L.E.']
2018-04-17T18:18:46Z
2018-04-17T18:18:46Z
1991
Mechanical Engineering
doi:10.15781/T2H41K447
http://hdl.handle.net/2152/64342
eng
1991 International Solid Freeform Fabrication Symposium
Open
['rapid tooling', 'NOODLES', 'stereolithography']
Controlling the Microstructure of Arc Sprayed Shells
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3f313338-f9ad-47d0-8841-e33ce583859d/download
null
Techniques for controlling the microstructure of sprayed steel structures are discussed in this paper. Steel is arc sprayed onto shaped substrates to form tooling. The quality of the tool is greatly influenced by the microstructure of the material and the interlamella regions of the deposit. This work is focused on cha...
null
null
null
null
null
null
['Rüsenberg, S.', 'Weiffen, R.', 'Knoop, F.', 'Schmid, H.-J.']
2021-10-07T14:59:58Z
2021-10-07T14:59:58Z
8/22/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88471', 'http://dx.doi.org/10.26153/tsw/15408']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['laser sintered parts', 'laser sintering', 'powder quality', 'cooldown phase', 'process quality']
Controlling the Quality of Laser Sintered Parts Along the Process Chain
Conference paper
https://repositories.lib.utexas.edu//bitstreams/521213c7-46fc-4fd8-b7b2-186321e26c73/download
University of Texas at Austin
The quality of laser sintered parts, in this work, manufactured by polymer laser sintering by using an EOSINT P395 Laser Sintering system, depends on several steps along the process chain. The first step is the characterization of the powder quality, whereas the rheological and physical investigations of nylon 12 powde...
null
null
null
null
null
null
['Milward, S.S.', 'Swygart, H.', 'Eccles, L.', 'Brown, S.G.R.', 'Lavery, N.P.']
2021-11-04T19:30:16Z
2021-11-04T19:30:16Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90010', 'http://dx.doi.org/10.26153/16931']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['co-efficient of thermal expansion', 'CTE', 'lattice structures', 'high precision optical system', 'laser powder bed fusion']
Controlling Thermal Expansion with Lattice Structures Using Laser Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d546d12d-39cb-41a1-a333-25c3865474fe/download
University of Texas at Austin
Tuning the Co-efficient of Thermal Expansion (CTE) of a component is traditionally limited by material choice. Laser Powder Bed Fusion (LPBF) enables the designer to create complex geometries including lattice structures. When combined with a secondary material, these metallic lattice structures can be designed to exhi...
null
null
null
null
null
null
['Masoomi, Mohammad', 'Soltani-Tehrani, Arash', 'Shamsaei, Nima', 'Thompson, Scott M.']
2021-11-11T16:34:39Z
2021-11-11T16:34:39Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90239', 'http://dx.doi.org/10.26153/tsw/17160']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['laser powder bed fusion', 'convective heat transfer coefficient', 'temperature gradient', 'numerical simulation']
Convection Heat Transfer Coefficients for Laser Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/abc68337-42aa-4b11-9426-6e7a88f61820/download
University of Texas at Austin
This study investigates the effects of convection heat transfer during the laser-powder bed fusion (L-PBF) additive manufacturing process. For the L-PBF process, parts are fabricated under a purged, inert environment to avoid oxidation. Part of the delivered laser energy is transferred to the process chamber/environmen...
null
null
null
null
null
null
['Zhu, Feng', 'Chen, Ke-Zhang', 'Feng, Xin-An']
2020-02-17T14:18:06Z
2020-02-17T14:18:06Z
8/4/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/79994', 'http://dx.doi.org/10.26153/tsw/7019']
eng
2004 International Solid Freeform Fabrication Symposium
Open
functionally graded materials
Converting a CAD Model into a Manufacturing Model for the Components Made of a Multiphase Perfect Material
Conference paper
https://repositories.lib.utexas.edu//bitstreams/46d57997-59fa-4091-a36f-5651774c4977/download
null
To manufacture the component made of a multiphase perfect material (including homogeneous and multi heterogeneous materials), it CAD model should be processed and converted into layered manufacturing model for further transformation of numerical control (NC) coding. This paper develops its detailed approaches and corre...
null
null
null
null
null
null
['Kim, C.Y.', 'Cuaron, A.', 'Perez, M.A.', 'Espalin, D.', 'MacDonald, E.', 'Wicker, R.B.']
2021-10-12T21:19:27Z
2021-10-12T21:19:27Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88742', 'http://dx.doi.org/10.26153/tsw/15676']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['cooperative fabrication', 'harmonic fabrication', 'embedded three-dimensional wire in', 'degrees of freedom', 'Cartesian coordinate']
Cooperative Fabrication Methodology for Embedding Wireon Corved Surfaces
Conference paper
https://repositories.lib.utexas.edu//bitstreams/675364f3-0458-48db-beff-9f1192c1117d/download
University of Texas at Austin
In conventional additive manufacturing (AM), an object is fabricated by depositing material in a layer by layer fashion. Typically, this process is retained so that deposition can occur on flat surfaces and motion can be constrained to requiring only three degrees of freedom (DOF) in a Cartesian coordinate system. When...
null
null
null
null
null
null
['Rhodes, Andrew', 'Walker, Roo', 'Smith, Tyler', 'Lindahl, John', 'Kunc, Vlastimil', 'Duty, Chad']
2021-12-06T21:43:37Z
2021-12-06T21:43:37Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90682', 'http://dx.doi.org/10.26153/tsw/17601']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['print parameters', 'fiber length', 'mechanical properties', 'fiber-reinforced composites', 'big area additive manufacturing']
Correlating Large-Format AM Print Parameters to Fiber Length and Mechanical Performance of Reinforced Polymer Composites
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cf90fc05-8f89-4840-9ae4-3dc581555251/download
University of Texas at Austin
This paper aims to correlate processing conditions to fiber length and mechanical properties in fiber-reinforced composites on the Big Area Additive Manufacturing (BAAM) system at Oak Ridge National Laboratory. The processing of fiber-reinforced composites has a significant influence on their microstructure, which dict...
null
null
null
null
null
null
['Lee, Y.S.', 'Bandari, Y.', 'Simunovic, S.', 'Richardson, B.', 'Kirka, M.M.']
2021-11-09T19:44:02Z
2021-11-09T19:44:02Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90143', 'http://dx.doi.org/10.26153/tsw/17064']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['LMD-wire', 'distortion', 'inter-layer time', 'finite element method', 'additive manufacturing', 'plate oscillation', 'Ti-6Al-4V']
Correlations of Interlayer Time with Distortion of Large Ti-6Al-4V Components in Laser Metal Deposition with Wire
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6ddb9727-07d8-4c1b-b85c-e5f889da3000/download
University of Texas at Austin
Laser metal deposition with wire (LMD-w) is one of the emerging additive manufacturing (AM) technologies for large-scale aerospace components due to high deposition rates and material efficiency. However, it often results in undesired stresses and distortions due to non-uniform expansion and contraction of material dur...
null
null
null
null
null
null
['Ertay, Deniz Sera', 'Ma, Henry', 'Vlasea, Mihaela']
2021-11-09T15:27:15Z
2021-11-09T15:27:15Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90094', 'http://dx.doi.org/10.26153/tsw/17015']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['pore defects', 'beam path', 'toolpath', 'border discontinuities', 'laser powder bed fusion']
Correlative Beam Path and Pore Defect Space Analysis for Modulated Powder Bed Laser Fusion Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d513f523-0fe0-45e6-9848-2946f15faf76/download
University of Texas at Austin
There are ongoing challenges in achieving full density metal parts via Laser Powder Bed fusion (LPBF). Numerous of studies have shown that the part density depends on the process parameters, the powder characteristics and the process environment conditions. The scan strategy and the interactions of scan paths at discon...
null
null
null
null
null
null
['Lindemann, Christian', 'Koch, Rainer']
2021-10-26T18:01:37Z
2021-10-26T18:01:37Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89542
eng
2016 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'product development processes', 'PDPs', 'cost efficiency']
Cost Efficient Design and Planning for Additive Manufacturing Technologies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5de7d8bb-0446-47a3-abc9-c80a974310c9/download
University of Texas at Austin
null
null
This paper discusses additive manufacturing with regards to the current available PDP's while setting a focus on the economic aspects of the integration.
null
null
null
null
['Baumers, M.', 'Holweg, M.']
2021-11-01T20:38:22Z
2021-11-01T20:38:22Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89738
eng
2016 International Solid Freeform Fabrication Symposium
Open
['manufacturing costs', 'build failure', 'laser sintering', 'additive manufacturing']
Cost Impact of the Risk of Build Failure in Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/09a029e5-f9ad-484b-b957-d67609e8dbac/download
University of Texas at Austin
While the feasibility of adopting Additive Manufacturing (AM) has been demonstrated in a range of industrial sectors, the total costs associated with the operation of the technology are not fully understood. This study reports the results of a series of build experiments in a controlled environment for the analysis of ...
null
null
null
null
null
null
['Barclift, Michael', 'Joshi, Sanjay', 'Simpson, Timothy', 'Dickman, Corey']
2021-11-01T20:55:42Z
2021-11-01T20:55:42Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89747
eng
2016 International Solid Freeform Fabrication Symposium
Open
['cost modeling', 'depreciation', 'resused powders', 'powder feedstocks', 'powder bed fusion', 'additive manufacturing']
Cost Modeling and Depreciation for Reused Powder Feedstocks in Powder Bed Fusion Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c2115481-a9ed-4649-8239-8340e5d73c29/download
University of Texas at Austin
Cost modeling for Powder Fusion (PBF) has traditionally treated the material feedstock as a fixed cost. Given that a built-up geometry in PBF must be in a bed filled with surrounding powder, the material feedstock is susceptible to satellites, chemical contamination, and dissimilar properties with each subsequent reuse...
null
null
null
null
null
null
['Kearns, Alexa', 'Farahbakhsh, Nasim', 'Venditti, Richard', 'Jur, Jesse']
2021-10-27T22:57:00Z
2021-10-27T22:57:00Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89641
eng
2016 International Solid Freeform Fabrication Symposium
Open
['3D printing', 'cotton', 'pulverized cotton', 'low-density polyethylene', 'nanofibrillated cellulose', 'NFC']
Cotton Fibers in 3D Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/02310db7-492e-4a9e-b46f-e9f7af17ab28/download
University of Texas at Austin
This work explores the materials challenges of cotton-loaded with polymer composites toward sustainable solutions in 3D printed free forms. A key step toward composite filament development is the reduction in size of the original cotton fibers. Mechanical processing of the cotton is introduced as a means of reducing th...
null
null
null
null
null
null
['McCarthy, D.L.', 'Williams, C.B.']
2021-10-05T15:52:50Z
2021-10-05T15:52:50Z
8/22/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88398', 'http://dx.doi.org/10.26153/tsw/15337']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'electroless plating', 'electroforming', 'laser sintering']
Creating Complex Hollow Metal Geometries using Additive Manufacturing and Electroforming
Conference paper
https://repositories.lib.utexas.edu//bitstreams/97319f36-4ae6-4fa7-9def-be3e74f18d5c/download
University of Texas at Austin
Additive manufacturing introduces a new design paradigm that allows the fabrication of geometrically complex parts that cannot be produced by traditional manufacturing and assembly methods. In this paper, the authors investigate the combination of laser sintering with an electroforming process using electroless nickel ...
null
null
null
null
null
null
['Phillips, T.', 'Milroy, C.', 'Beaman, J.']
2021-12-06T21:28:45Z
2021-12-06T21:28:45Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90677', 'http://dx.doi.org/10.26153/tsw/17596']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['lithium batteries', 'composite materials', 'conductivity', 'electroactivity']
Creating Conformable Lithium Batteries Using Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0d694d62-7465-4032-8a05-1a31e81b4be5/download
University of Texas at Austin
Selective laser sintering is an additive manufacturing technique that uses a laser to consolidate powdered material and create complex three dimensional parts. Typically, SLS utilizes thermoplastic polymer media to create dense plastic components (direct SLS). It is also possible, however, to use composite powders with...
null
null
null
null
null
null
['Dumene, Richard L.', 'Kennedy, Paul', 'Williams, Christopher B.', 'Sweeney, Dennis', 'Earle, Greg']
2021-10-21T22:05:17Z
2021-10-21T22:05:17Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89456
eng
2015 International Solid Freeform Fabrication Symposium
Open
['radiofrequency', 'RF structures', 'embedding', 'PolyJet', 'material jetting']
Creating Embedded Radiofrequency Structures Using PolyJet Material Jetting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/04ceb5ed-3337-409c-a438-5d2a48eada45/download
University of Texas at Austin
Embedding of integrated systems via Additive Manufacturing (AM) offers the potential to save weight, space, and time in the production of electronics and vehicles. Of specific interest are embedded electrical systems that operate in the radiofrequency (RF) range as they have great potential utility in communication sys...
null
null
null
null
null
null
['Frank, Matthew C.', 'Joshi, Ashish', 'Lei, Shuangyan', 'Anderson, Donald D.', 'Tochigi, Yuki', 'Brown, Thomas D.']
2021-10-05T19:18:48Z
2021-10-05T19:18:48Z
2012
Mechanical Engineering
null
['https://hdl.handle.net/2152/88415', 'http://dx.doi.org/10.26153/tsw/15354']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['Subtractive Rapid Prototying', 'bone implants', 'human allograft bone']
Creating Implants from Allograft Bone using Subtractive Rapid Prototyping
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0efb0040-f1d4-4d48-ab05-6e14636b4c07/download
University of Texas at Austin
This research involves the development of rapid manufacturing for bone implants using human allograft bone in a Subtractive Rapid Prototyping process. Using CT-derived CAD models of missing bone due to high energy trauma or tumor resection, surgical reconstruction could be improved with custom rapid implants made from ...
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null
null
null
null
null
['Roschli, Alex', 'Post, Brian', 'Chesser, Phillip', 'Borish, Michael', 'Love, Lonnie', 'Kim, Seokpum']
2021-11-18T16:51:55Z
2021-11-18T16:51:55Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90425', 'http://dx.doi.org/10.26153/tsw/17346']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['toolpaths', 'extruder modification', '3D printing', 'extrusion-based systems']
Creating Toolpaths Without Starts and Stops for Extrusion-Based Systems
Conference paper
https://repositories.lib.utexas.edu//bitstreams/fb0ed156-649d-4419-b27e-13bdefcc6f62/download
University of Texas at Austin
Toolpath generation for extrusion-based additive manufacturing systems, called slicing, involves operations on polygonal contours that are derived from an STL file. Slicing generates multiple paths per layer (both closed-loop and open-loop) that are designed to optimally fill the space outlined by the polygon(s). In th...
null
null
null
null
null
null
['Moeskops, Eef', 'Kamperman, Nico', 'van de Vorst, Bart', 'Knoppers, Rik']
2019-12-05T18:26:15Z
2019-12-05T18:26:15Z
2004
Mechanical Engineering
null
['https://hdl.handle.net/2152/78652', 'http://dx.doi.org/10.26153/tsw/5708']
eng
2004 International Solid Freeform Fabrication Symposium
Open
Polyamide
Creep Behaviour of Polyamide in Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d9beaf74-76f1-42f0-bc25-a13e71ddbc72/download
null
The use of Rapid Prototyping technology to produce fully-functional end use products (Rapid Manufacturing) requires understanding of the material's time dependency. Creep is the time dependent strain as a result of a constant load. Creep behaviour of sintered polyamide-12 processed by the Selective Laser Sintering proc...
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null
null
null
null
null
['Schultz, J.', 'Kander, R.', 'Suchicital, C.']
2019-03-13T16:19:43Z
2019-03-13T16:19:43Z
1999
Mechanical Engineering
null
['https://hdl.handle.net/2152/73641', 'http://dx.doi.org/10.26153/tsw/783']
eng
1999 International Solid Freeform Fabrication Symposium
Open
['Selective Laser Sintering', 'Mechanical Alloying']
Cryogenic Mechanical Alloying of Poly (ether ether ketone) - Polycarbonate Composite Powders for Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9978f603-04cf-442f-b686-ad4fcfdb58cc/download
null
Mechanical alloying is a solid state processing technique traditionally used in the metallurgical industry to extend solubility limits in alloy systems. Mechanical alloying can also be used to blend polymer systems at ambient or cryogenic temperatures. In this work, cryogenic mechanical alloying was employed to create ...
null
null
null
null
null
null
Wudy, K.
2021-11-18T01:41:15Z
2021-11-18T01:41:15Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90397', 'http://dx.doi.org/10.26153/tsw/17318']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['laser sintering', 'thermoset', 'thermoplastic', 'multi-material part']
Curing and Infiltration Behavior of UV-Curing Thermosets for the Use in a Combined Laser Sintering Process of Polymers
Conference paper
https://repositories.lib.utexas.edu//bitstreams/031c8c40-5536-463d-bbd9-d1c1f17a664d/download
University of Texas at Austin
The investigation in this study addresses a new additive manufacturing process, which enables the production of multi-material parts consisting of thermosets and thermoplastics. A liquid thermoset resin will be applied with a micro value syringe in the laser sintering (LS) system. The liquid thermoset reacts parallel t...
null
null
null
null
null
null
['Brady, G. Allen', 'Chu, Tien-Min', 'Halloran, John W.']
2018-11-14T20:47:02Z
2018-11-14T20:47:02Z
1996
Mechanical Engineering
doi:10.15781/T28C9RQ08
http://hdl.handle.net/2152/70264
null
1996 International Solid Freeform Fabrication Symposium
Open
['SL technique', 'uv-polymerized binder', 'HA ceramics']
Curing Behavior of Ceramic Resin for Stereolithography
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9078d708-b07c-44ee-805a-b9a5b514daba/download
null
Ceramic green bodies have been created with stereolithography methods by using ultraviolet curable suspension of ceramic powders, a "ceramic resin", on a Stereolithography Apparatus (SLA). A minivat system with mini-recoater blade was designed to run small batch experiments on an SLA-250/40 machine. With the ceramic re...
null
null
null
null
null
null
['Wudy, K.', 'Drummer, D.']
2021-11-09T15:41:22Z
2021-11-09T15:41:22Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90099', 'http://dx.doi.org/10.26153/tsw/17020']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['curing behavior', 'thermosets', 'multimaterial SLS parts', 'selective laser sintering', 'additive manufacturing']
Curing Behavior of Thermosets for the Use in a Combined Selective Laser Sintering Process of Polymers
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a3e4cc8e-0d87-4cbc-9bae-ed6d95bbc36a/download
University of Texas at Austin
Selective laser sintering (SLS) of polymers is an additive manufacturing process, which enables the production of functional technical components. Unfortunately, the SLS process is restricted regarding the materials that can be processed and thus resulting component properties are limited. The investigations in this st...
null
null
null
null
null
null
['Law, Andrew Chung Chee', 'Southon, Nicholas', 'Senin, Nicola', 'Stavroulakis, Petros', 'Leach, Richard', 'Goodridge, Ruth', 'Kong, Zhenyu']
2021-11-09T14:59:52Z
2021-11-09T14:59:52Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90089', 'http://dx.doi.org/10.26153/tsw/17010']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'polymer powder bed fusion', 'in-process monitoring', 'fringe projection', '3D point cloud processing', 'curvature', 'segmentation']
Curvature-Based Segmentation of Powder Bed Point Clouds for In-Process Monitoring
Conference paper
https://repositories.lib.utexas.edu//bitstreams/432050c5-d01a-43ff-bd43-66f110bf7fc7/download
University of Texas at Austin
This paper presents a curvature-based analysis of point clouds collected in-process with fringe projection in a polymer powder bed fusion process. The three-dimensional point clouds were obtained from outside of the build chamber with a fringe projection measurement system which was provided with access through an obse...
null
null
null
null
null
null
['Klosterman, Donald A.', 'Chartoff, Richard P.', 'Osborne, Nora R.', 'Graves, George A.', 'Lightman, Allan', 'Han, Gyoowan', 'Bezeredi, Akos', 'Rodrigues, Stan']
2019-03-01T17:27:06Z
2019-03-01T17:27:06Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73513', 'http://dx.doi.org/10.26153/tsw/663']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['LOM', 'rapid prototyping']
Curved Layer LOM of Ceramics and Composites
Conference paper
https://repositories.lib.utexas.edu//bitstreams/87b9a3a5-76fc-4614-9c36-40e8d3c47daa/download
null
A novel rapidprototyping (RP) technology incorporating a curved layer building style has been developed. The new process,based on Laminated Object Manufacturing (LOM), is suited for efficient fabrication of curved layer structures made from ceramics and fibrous composites. Anew LOM machine was developedithatuses cerami...
null
null
null
null
null
null
Kalmanovich, Gary
2018-11-14T17:20:08Z
2018-11-14T17:20:08Z
1996
Mechanical Engineering
doi:10.15781/T2H12VT2W
http://hdl.handle.net/2152/70244
eng
1996 International Solid Freeform Fabrication Symposium
Open
['LOM', 'manufacturing process', 'curved-layer']
"Curved-Layer" Laminated Object Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1fd8fc07-fd5a-420d-97e1-9dafbff943c1/download
null
A process where a freeform solid object is built by bonding cut layers of material together is called a Laminated Object Manufacturing process. Until today, all ofthe LOM processes utilized straight forward planar cross-sections of the intended object for manufacturing. The "CurvedLayer" project's objective is to perfo...
null
null
null
null
null
null
['Nambiar, R.V.', 'Jones, R.E.', 'Gomez, J.R.']
2019-10-18T16:52:50Z
2019-10-18T16:52:50Z
2001
Mechanical Engineering
null
['https://hdl.handle.net/2152/76259', 'http://dx.doi.org/10.26153/tsw/3348']
eng
2001 International Solid Freeform Fabrication Symposium
Open
Reconstruction
Custom Fabrication of Hard Tissue Reconstructive Frameworks
Conference paper
https://repositories.lib.utexas.edu//bitstreams/2bb1971e-1d46-4bac-be00-dea8204bff10/download
null
The feasibility of fabricating custom frameworks for tissue regeneration utilizing three-dimensional inkjet printing technology followed by slip casting was investigated. A CAD solid model of mold was created with structures within the mold cavity to provide variable, customized porosity in the cast framework. The poly...
null
null
null
null
null
null
['Remmers, Richard', 'Cook, Doug', 'Gervasi, Vito']
2021-10-01T00:14:19Z
2021-10-01T00:14:19Z
2010
Mechanical Engineering
null
['https://hdl.handle.net/2152/88305', 'http://dx.doi.org/10.26153/tsw/15246']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'fluid power industry', 'custom pneumatic rotary actuator', 'active ankle-foot orthosis']
Custom, Integrated, Pneumatic, Rotary Actuator for an Active Ankle-Foot Orthosis
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6eab6d2a-4e2e-4c21-b30a-be46b92a3f49/download
University of Texas at Austin
End-use objects produced via additive manufacturing (AM) are on the rise and new applications in the fluid power industry are emerging. Recently, a custom, pneumatic, rotary actuator was been designed and additively manufactured for integration into an active ankle-foot orthosis that is being developed in the National ...
null
null
null
null
null
null
['Mohammed, Mazhar I.', 'Fitzpatrick, Angus P.', 'Malyala, Santosh K.', 'Gibson, Ian']
2021-10-28T21:50:29Z
2021-10-28T21:50:29Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89709
eng
2016 International Solid Freeform Fabrication Symposium
Open
['patient specific', 'mandible', 'implant', 'design', '3D printing']
Customised Design and Development of Patient Specific 3D Printed Whole Mandible Implant
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6502fcd6-dc4b-43f7-9e7c-5148eb259ccc/download
University of Texas at Austin
In this study we assessed the design criteria for the creation of a patient specific, whole mandible implant based on a patient’s medical imaging data and 3D printing. We tailor this procedure to a patient who will undergo a mandibulectomy due to cancer infiltration of the jaw. The patient CT scan data was used to gene...
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null
null
null
null
null