author
stringlengths
4
285
date.accessioned
stringlengths
20
20
date.available
stringlengths
20
20
date.issued
stringclasses
75 values
description.department
stringclasses
3 values
identifier
stringclasses
387 values
identifier.uri
stringlengths
32
78
language.iso
stringclasses
8 values
relation.ispartof
stringclasses
33 values
rights.restriction
stringclasses
2 values
subject
stringlengths
2
254
title
stringlengths
7
239
type
stringclasses
3 values
pdf
stringlengths
93
93
publisher
stringclasses
1 value
abstract
stringlengths
109
3.61k
description.sponsorship
stringclasses
100 values
description
stringclasses
16 values
title.alternative
stringclasses
1 value
contributor.utaustinauthor
stringclasses
1 value
language
stringclasses
1 value
identifier.url
stringclasses
1 value
['Lee, Yousub', 'Simunovic, Srdjan', 'Gibson, Brian', 'Mhatre, Paritosh', 'Roschli, Alex']
2023-01-26T15:12:33Z
2023-01-26T15:12:33Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117315', 'http://dx.doi.org/10.26153/tsw/44196']
eng
2022 International Solid Freeform Fabrication Symposium
Open
Ti-6Al-4V
Modelling of Microstructure Evolution in Wire-Based Laser Direct Energy Deposition with Ti-6Al-4V
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f8c6b7d5-6e88-4b51-aa6c-3cbd7b75cbcb/download
null
Over the past years, wire-based direct energy deposition (DED) has been transitioning from rapid prototyping to the production of end-use part and mass production. However, a wide market penetration of the DED has not happened yet. The difficulties for wide-scale market adoption to critical structural components are...
null
null
null
null
null
null
['Ryder, G. J.', 'Berzins, M.', 'Childs, T. H. C']
2018-11-16T16:03:58Z
2018-11-16T16:03:58Z
1996
Mechanical Engineering
doi:10.15781/T2JQ0TF3G
http://hdl.handle.net/2152/70292
eng
1996 International Solid Freeform Fabrication Symposium
Open
['sintering process', 'sintering machines', 'Selective Laser Sintering process']
Modelling Simple Feature Creation in Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ee6fca47-27eb-4ee6-89e1-8da06158fe77/download
null
A two dimensional finite difference thermal sintering model has been created to describe the Selective Laser Sintering process(SLS). It includes thermal property variation with position and temperature, and especially adaptive meshing to refine information in regions of high temperature gradients. It has been used to p...
null
null
null
null
null
null
['Xue, Samuel S.', 'Barlow, Joel W.']
2018-04-12T18:31:32Z
2018-04-12T18:31:32Z
1991
Mechanical Engineering
doi:10.15781/T22F7K78V
http://hdl.handle.net/2152/64283
eng
1991 International Solid Freeform Fabrication Symposium
Open
['Chemical Engineering Department', 'SLS', 'Maxwell-Eucken Model', 'models']
Models for the Prediction of the Thermal
Conference paper
https://repositories.lib.utexas.edu//bitstreams/234ebc93-cb17-427e-84c8-c58eb8b65529/download
null
Five models and eq\1ationsJorthe.predictic;>nof the tbertnal conduc~"ities of powders in the literature are compared with the data obtainedill the experiments of the authors. Anew modified ntodel for the. correlation of the experimental data is presented. Key words: differential scanning calorimetry, porosity, solid co...
null
null
null
null
null
null
['Liang, Xuan', 'Chen, Qian', 'Cheng, Lin', 'Yang, Qingcheng', 'To, Albert']
2021-11-08T21:52:23Z
2021-11-08T21:52:23Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90051', 'http://dx.doi.org/10.26153/tsw/16972']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'inherent strain', 'modified method', 'residual distortion']
A Modified Inherent Strain Method for Fast Prediction of Residual Deformation in Additive Manufacturing of Metal Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c48dff75-ea2f-4cb9-991f-33da1a06fa68/download
University of Texas at Austin
Effective prediction of residual deformation is very important to guarantee the quality of metal parts produced by additive manufacturing (AM). However, analytical or numerical models for the AM process are complicated and time consuming thus far. The conventional inherent strain theory can predict residual distortion ...
null
null
null
null
null
null
['Hagen, Deborah', 'Chen, Alex', 'Beaman, Joseph J.', 'Kovar, Desiderio']
2021-11-18T01:55:56Z
2021-11-18T01:55:56Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90403', 'http://dx.doi.org/10.26153/tsw/17324']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['selective laser flash sintering', 'moisture', 'yttria-stabilized zirconia', 'ceramics']
Moisture Effects on Selective Laser Flash Sintering of Yttria-Stabilized Zirconia
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b13fce3a-801f-477a-bb1a-f7b9738b5b48/download
University of Texas at Austin
Selective laser flash sintering (SLFS) combines a uniform electric field with a localized, scanning laser as the only external heating source. The presence of a large uniform electric field can greatly increase the sintering rate and lower the sintering temperature for ceramics. The combination of lower sintering tempe...
null
null
null
null
null
null
['Sinico, M.', 'Ranjan, R.', 'Moshiri, M.', 'Ayas, C.', 'Langelaar, M.', 'Witvrouw, A.', 'van Keulen, F.', 'Dewulf, W.']
2021-11-30T19:54:36Z
2021-11-30T19:54:36Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90528', 'http://dx.doi.org/10.26153/tsw/17447']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['topology optimization', 'laser powder bed fusion', 'mold insert']
A Mold Insert Case Study on Topology Optimized Design for Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/fa3d7107-5752-40db-952d-35b61533d1b9/download
University of Texas at Austin
The Additive Manufacturing (AM) of injection molding inserts has gained popularity during recent years primarily due to the reduced design-to-production time and form freedom offered by AM. In this paper, Topology Optimization (TO) is performed on a metallic mold insert which is to be produced by the Laser Powder Bed F...
null
null
null
null
null
null
['Zhirnov, I.', 'Doubenskaia, M.', 'Kotoban, D.']
2021-11-03T22:13:23Z
2021-11-03T22:13:23Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89949
eng
2017 International Solid Freeform Fabrication Symposium
Open
['thermographic monitoring', 'single-track degradation', 'single-track', 'selective laser melting']
Monitoring of Single-Track Degradation in the Process of Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/2d0118d3-b0c7-403b-8e5d-da7c4f586710/download
University of Texas at Austin
Selective laser melting machines provide the optimal working parameters for manufacturing during the process. However, the laser interaction with metal powder is an unstable. The gasdynamic flows make powder particles move and escape from the melt pool. This phenomenon leads to an irregular distribution of the material...
null
null
null
null
null
null
['Ziemian, C.W.', 'Cipoletti, D.E.', 'Ziemian, S.N.', 'Okwara, M.N.', 'Haile, K.V.']
2021-10-13T19:36:18Z
2021-10-13T19:36:18Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88770', 'http://dx.doi.org/10.26153/tsw/15704']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['fused deposition modeling', 'monotonic tensile fatigue', 'cyclic tensile fatigue', 'tensile behavior', 'ABS components']
Monotonic and Cyclic Tensile Properties of ABS Components Fabricated by Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/9107bcbf-ec33-4246-ac3d-ed0aaf4b2ce0/download
null
An investigation of tensile strength and cyclic tension-tension fatigue behavior has been performed on layered ABS components fabricated by fused deposition modeling (FDM). Experimentation was designed to focus specifically on the effect of specimen mesostructure on monotonic tensile behavior and tensile-fatigue life. ...
null
null
null
null
null
null
['Xian, Y.', 'Rosen, D.W.']
2021-11-09T19:52:01Z
2021-11-09T19:52:01Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90146', 'http://dx.doi.org/10.26153/tsw/17067']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['moving morphable components', 'MMC', 'topology optimization', 'support structures', 'material anisotropy', 'additive manufacturing']
Morphable Components Topology Optimization for Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e3342766-8fd1-4b2e-ab3c-70d297035c3a/download
University of Texas at Austin
This paper addresses two issues: 1. Topology optimization (TO) yields designs that may require support structures if additively manufactured, which increase material and clean-up costs. 2. Material anisotropy is induced during additive manufacturing, which results in inaccurate TO results if such material properties ar...
null
null
null
null
null
null
['Dwivedi, Rajeev', 'Kovacevic, Radovan']
2020-02-17T14:21:31Z
2020-02-17T14:21:31Z
8/4/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/79996', 'http://dx.doi.org/10.26153/tsw/7021']
eng
2004 International Solid Freeform Fabrication Symposium
Open
Solid Freeform Fabrication
Morphing Based Approach for Process Planning for Fabrication of Geometries and the Control of Material Composition
Conference paper
https://repositories.lib.utexas.edu//bitstreams/762278fd-9bd9-48d2-8ec8-fc8bcca9ce7f/download
null
The inherent limitation of most of the solid freeform fabrication is the deposition in form of layers. Artificial imposition of the process for the desired geometric morphology and the functional gradience of material limits the accuracy of the workpiece. Mathematical morphing of geometry and the material gradience all...
null
null
null
null
null
null
['Saint John, David B.', 'Joshi, Sanjay B.', 'Simpson, Timothy W.', 'Qu, Meng', 'Rowatt, John David', 'Lou, Yucun']
2021-10-26T20:18:02Z
2021-10-26T20:18:02Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89575
eng
2016 International Solid Freeform Fabrication Symposium
Open
['powder bed fusion', 'Inconel 718', 'morphology', 'grain texture', 'as-deposited', 'heat treated']
Morphology and Grain Texture in As-Deposited and Heat Treated Inconel 718 Structures Produced using Laser-Based Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/65dc8f17-3cb5-4228-b555-7e80070dfcec/download
University of Texas at Austin
With increasing interest in the use of powder bed fusion (PBF) processes for additive manufacturing, understanding the relationship between as-deposited and heat treated states and the intrinsic anisotropy of fabricated parts has become critical for its successful application. This phenomenon has been studied and repor...
null
null
null
null
null
null
['Taylor, C. Martin', 'Childs, T.H.C.', 'Hauser, C.']
2019-10-25T16:03:04Z
2019-10-25T16:03:04Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/77440', 'http://dx.doi.org/10.26153/tsw/4529']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Morphology
Morphology of Direct SLS-Processed Stainless Steel Layers
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3524c212-fd11-471c-9e2e-435da8c6b823/download
null
This paper discusses work done to analyse the shape of stainless steel layers generated by direct selective laser sintering (SLS). Laser power, scan spacing and scanning speed have been varied, to investigate their effect on geometry. The relationship between scanning parameters and the qualities of sintered parts (dim...
null
null
null
null
null
null
['Jouaneh, Musa', 'Stucker, Brent']
2019-11-20T15:44:22Z
2019-11-20T15:44:22Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78460', 'http://dx.doi.org/10.26153/tsw/5545']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Fabrication
A Motion Planning Approach for Fabrication of Complex 3-D Shapes in a LENS� Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/751a38c7-7064-4e82-b461-0b1e5aa40797/download
null
This paper discusses an approach for planning the motion of the laser deposition head relative to the part for fabrication of complex 3-D shapes such as parts with overhangs, branches, and internal cavities in direct metal deposition processes such as the LENS‘ process. The proposed approach is based on slicing the sol...
null
null
null
null
null
null
Jouaneh, Musa
2019-10-30T16:56:11Z
2019-10-30T16:56:11Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/78193', 'http://dx.doi.org/10.26153/tsw/5282']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Cladding
Motion Planning for Cladding Operations in a 5-Axis LENS� Machine
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d9102ce0-2d9e-466f-9ba4-f217b478b682/download
null
This paper presents a motion planning approach for some basic part shapes that require 5-axis motion control in a LENS machine. The paper discusses an approach that allows a cladding layer to be deposited on a cylindrical or a semi-spherical part for re-build operations. For cylindrical parts, the deposited layer coul...
null
null
null
null
null
null
['Zong, Guisheng', 'Marcus, Harris L.']
2018-04-17T19:31:59Z
2018-04-17T19:31:59Z
1991
Mechanical Engineering
doi:10.15781/T2TD9NR56
http://hdl.handle.net/2152/64356
eng
1991 International Solid Freeform Fabrication Symposium
Open
['Center for Materials Science and Engineering', 'SALD', 'pyrolytic']
Moving Boundary Transport Phenomena in Selective Area Laser Deposition Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5e9bf252-57b5-4b2d-a768-f7960b3241f9/download
null
The overall selective area laser deposition process was modeled using the two-layer, three dimensional solid phase heat transfer with the moving boundary condition considered, gas phase mass transfer, and film growth coupled equations. A modified front-tracking finite difference method was used to solve the moving boun...
null
null
null
null
null
null
['Tagore, G.R.N.', 'Anjikar, Swapnil D.', 'Gopal, A. Venu']
2020-03-09T14:56:19Z
2020-03-09T14:56:19Z
2007
Mechanical Engineering
null
['https://hdl.handle.net/2152/80191', 'http://dx.doi.org/10.26153/tsw/7210']
eng
2007 International Solid Freeform Fabrication Symposium
Open
Fused Deposition Modeling
Multi Objective Optimisation of Build Orientation for Rapid Prototyping with Fused Deposition Modeling (FDM)
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5286f4f8-8193-4c7c-b21d-01b9d64ca599/download
null
The ability to select the optimal orientation of build up is one of the critical factors since it affects the part surface quality, accuracy, build time and part cost. Various factors to be considered in optimisation of build orientation for FDM are build material, support material, build up time, surface roughness and...
null
null
null
null
null
null
['Liou, Frank', 'Ruan, Jianzhong', 'Sparks, Todd E.']
2021-09-30T19:10:58Z
2021-09-30T19:10:58Z
9/23/10
Mechanical Engineering
null
['https://hdl.handle.net/2152/88283', 'http://dx.doi.org/10.26153/tsw/15224']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['Multi-Axis Planning System', 'hybrid laser metal deposition processes', 'multi-axis layered manufacturing', 'automated fabrication']
Multi-Axis Planning System (MAPS) for Hybrid Laser Metal Deposition Processes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4271887e-521a-49fc-a6e7-41bb57d25413/download
University of Texas at Austin
This paper summarizes the research and development of a Multi-Axis Planning System (MAPS) for hybrid laser metal deposition processes. The project goal is to enable the current direct metal deposition systems to fully control and utilize multi-axis capability to make complex parts. MAPS allows fully automated process p...
null
null
null
null
null
null
['Surovi, N.A.', 'Soh, G.S.']
2024-03-26T23:11:49Z
2024-03-26T23:11:49Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124444', 'https://doi.org/10.26153/tsw/51052']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['wire arc additive manufacturing', 'geometric defect']
MULTI-BEAD AND MULTI-LAYER PRINTING GEOMETRIC DEFECT IDENTIFICATION USING SINGLE BEAD TRAINED MODELS
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7948b303-87b3-4d98-8191-6301f1d54b2d/download
University of Texas at Austin
In Wire Arc Additive Manufacturing (WAAM), a geometric defect is a defect that creates voids in the final printed part due to incomplete fusion between two non-uniform overlapping bead segments. Such a defect posesthe onset of a severe problem during multi-bead prints. In our earlier work, a methodology has been develo...
null
null
null
null
null
null
['Heeling, T.', 'Zimmermann, L.', 'Wegener, K.']
2021-10-28T19:52:15Z
2021-10-28T19:52:15Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89684
eng
2016 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'multi-beam strategies', '316L']
Multi-Beam Strategies for the Optimization of the Selective Laser Melting Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ee1bf77f-af0f-45ed-b549-47a3e3755466/download
University of Texas at Austin
The additive manufacturing of metal parts is of increasing importance for various industry sectors, but processes like selective laser melting are still lacking of robustness especially in the case of hard to process materials. The local adjustment of temperature fields around the melt pool seems promising to decrease ...
null
null
null
null
null
null
['Singh, Prabhjot', 'Dutta, Debasish']
2019-11-20T16:39:33Z
2019-11-20T16:39:33Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78478', 'http://dx.doi.org/10.26153/tsw/5563']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Layered Deposition
Multi-Direction Layered Deposition: An Overview of Process Planning Methodologies
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5b9272a6-a9d9-4e35-a846-7995b17cffc2/download
null
Layered Manufacturing (LM) techniques build a part by adding thin layers of material. In many LM processes overhangs require the deposition of sacrificial supports resulting in an increase in the build time, wastage of material and costly post-processing. This has led to the development of LM systems which can deposit ...
null
null
null
null
null
null
['Ding, D.', 'Pan, Z.', 'Cuiuri, D.', 'Li, H.', 'Larkin, N.', 'van Duin, S.']
2021-10-21T15:48:25Z
2021-10-21T15:48:25Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89402
eng
2015 International Solid Freeform Fabrication Symposium
Open
['robotic wire-feed additive manufacturing', 'multi-directional slicing', 'CAD models', 'STL models']
Multi-Direction Slicing of STL Models for Robotic Wire-Feed Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b1299549-aaaf-4b26-9f13-2f44ecf25668/download
University of Texas at Austin
Robotic wire-feed additive manufacturing technology is possible to directly fabricate metallic overhangs without support structures through multi-direction deposition. To automatically produce complex components with overhangs, an efficient multi-direction slicing algorithm to slice CAD models into a set of proper laye...
null
null
null
null
null
null
['Bagchi, Amit', 'Beesley, Robert']
2018-10-03T15:38:18Z
2018-10-03T15:38:18Z
1994
Mechanical Engineering
doi:10.15781/T2HQ3SH86
http://hdl.handle.net/2152/68650
eng
1994 International Solid Freeform Fabrication Symposium
Open
['Solid free-form fabrication', 'Photolithography', 'selective laser sintering']
Multi-layered Composites Using Photolithography
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b532c87c-f94f-4147-b368-54e8627a7583/download
null
The mechanical properties of the parts made using solid freeform fabrication technologies are limited by their resins used. Previous research has shown that the mechanical properties of these parts can be enhanced substantially by using glass and fiber reinforcements. However, all of the published data is for single la...
null
null
null
null
null
null
['Bondi, Scott N.', 'Johnson, Ryan W.', 'Eikhatib, Tarek', 'Gillespie, Josh', 'Mi, Jian', 'Lackey, W. Jack']
2019-10-22T18:10:37Z
2019-10-22T18:10:37Z
2002
Mechanical Engineering
null
['https://hdl.handle.net/2152/76331', 'http://dx.doi.org/10.26153/tsw/3420']
eng
2002 International Solid Freeform Fabrication Symposium
Open
Deposition
Multi-Material and Advanced Geometry Deposition via Laser Chemical Vapor Deposition
Conference paper
https://repositories.lib.utexas.edu//bitstreams/067ed020-d727-4f1c-8022-5e7801349b8b/download
null
Laser Chemical Vapor Deposition (LCVD) as a manufacturing process holds the potential to build compositionally and geometrically unique objects. Georgia Tech’s LCVD system has been used in the past to create three-dimensional and laminate structures out of carbon. Recently molybdenum and boron nitride were successfully...
This work is supported by the National Science Foundation.
null
null
null
null
null
['Lipton, Jeffrey', 'Arnold, Dave', 'Nigl, Franz', 'Lopez, Nastassia', 'Cohen, Dan', 'Norén, Nils', 'Lipson, Hod']
2021-10-01T00:10:27Z
2021-10-01T00:10:27Z
9/23/10
Mechanical Engineering
null
['https://hdl.handle.net/2152/88304', 'http://dx.doi.org/10.26153/tsw/15245']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['Solid Freeform Fabrication', 'additive manufacturing', 'food printing', 'food processing', 'multi-material constructs']
Multi-Material Food Printing with Complex Internal Structure Suitable for Conventional Post-Processing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c7c036fd-4f58-4b5a-95f3-5d59437c989b/download
University of Texas at Austin
Solid Freeform Fabrication (SFF) of food provides an exciting application for additive manufacturing technologies. A variety of materials has been used to demonstrate food printing. However, these materials were not suited for traditional food processing techniques (Baking, slow cooking, frying, etc) and thus eliminati...
null
null
null
null
null
null
['Patrick, Steven', 'Nycz, Andrzej', 'Noakes, Mark']
2021-11-18T16:49:21Z
2021-11-18T16:49:21Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90424', 'http://dx.doi.org/10.26153/tsw/17345']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['slicing software', 'slicing', 'process planning', 'multi-material', 'additive manufacturing', 'metal big area additive manufacturing', 'MBAAM', 'Oak Ridge National Laboratory']
Multi-Material Process Planning for Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ec57a3cb-8475-4706-82f8-abb06dadb5a0/download
University of Texas at Austin
A key process in additive manufacturing is converting a 3D model into a set of instructions that a robot can parse and implement. This process is commonly referred to as slicing. Oak Ridge National Laboratory’s (ORNL) Metal Big Area Additive Manufacturing (MBAAM) team at the Manufacturing Demonstration Facility (MDF) h...
null
null
null
null
null
null
['Griffith, Michelle L.', 'Harwell, Lane D.', 'Romero, J. Tony', 'Schlienger, Eric', 'Atwood, Clint L.', 'Smugeresky, John E.']
2018-12-05T19:32:31Z
2018-12-05T19:32:31Z
1997
Mechanical Engineering
doi:10.15781/T21J97T99
http://hdl.handle.net/2152/71406
eng
1997 International Solid Freeform Fabrication Symposium
Open
['CAD', 'alloys']
Multi-Material Processing By Lens
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4255f87d-bc6c-4ddc-a267-18a095a0ea5e/download
null
During the past few years, solid freeform fabrication has evolved into direct fabrication of metallic components using computer aided design (CAD) solid models. [1-4] Laser Engineered Net Shaping (LENS™) is one such technique [5-7] being developed at Sandia to fabricate high strength, near net shape metallic components...
null
null
null
null
null
null
['Ott, M.', 'Zach, M.F.']
2021-09-30T13:44:32Z
2021-09-30T13:44:32Z
9/23/10
Mechanical Engineering
null
['https://hdl.handle.net/2152/88250', 'http://dx.doi.org/10.26153/tsw/15191']
eng
2010 International Solid Freeform Fabrication Symposium
Open
['additive layer manufacturing', 'multi-material processing', 'material flexibility', 'material properties', 'hot work steel', 'tungsten carbide/cobalt']
Multi-Material Processing in Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d3b43fdf-71cd-4be3-bb28-27ae19d9e319/download
University of Texas at Austin
One of the most important advantages of additive layer manufacturing (ALM) is the ability to produce parts with high geometric complexity in a very economical manner. However, only little effort has been taken in order to enhance aspects of material flexibility of ALM. A modified manufacturing process was developed and...
null
null
null
null
null
null
['Chang, Chih-Chiang M.', 'Angelini, Thomas E.', 'Bova, Frank J.', 'Banks, Scott A.']
2021-11-30T20:09:48Z
2021-11-30T20:09:48Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90532', 'http://dx.doi.org/10.26153/tsw/17451']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['soft matter fabrication', '3D printing', 'robotics', 'additive manufacturing', 'multi-material']
Multi-Material Soft Matter Robotic Fabrication: A Proof of Concept in Patient-Specific Neurosurgical Surrogates
Conference paper
https://repositories.lib.utexas.edu//bitstreams/bb8affa1-43c8-4d57-9b7d-677601af93d2/download
University of Texas at Austin
Soft matter 3D printing provides the capability to fabricate 3D structures by depositing hydrogel inks in granular gel support material. To date, there has been little work reported using this method to fabricate complex-shaped models with multiple materials in a timely fashion. The aim of this project is to introduce ...
null
null
null
null
null
null
['Arcaute, Karina', 'Zuverza, Nubia', 'Mann, Brenda', 'Wicker, Ryan']
2020-03-10T15:12:07Z
2020-03-10T15:12:07Z
8/27/07
Mechanical Engineering
null
['https://hdl.handle.net/2152/80214', 'http://dx.doi.org/10.26153/tsw/7233']
eng
2007 International Solid Freeform Fabrication Symposium
Open
stereolithography
Multi-Material Stereolithography: Spatially-Controlled Bioactive Poly(Ethylene Glycol) Scaffolds for Tissue Engineering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c4b7ecd7-728b-48c2-8d44-65bc033a5adf/download
null
Challenges remain in tissue engineering to control the spatial and temporal mechanical and biochemical architectures of scaffolds. Unique capabilities of stereolithography (SL) for fabricating multi-material spatially-controlled bioactive scaffolds were explored in this work. To accomplish multi-material builds with im...
null
null
null
null
null
null
['Aguiló, M.A.', 'Warner, J.E.']
2021-11-04T19:55:55Z
2021-11-04T19:55:55Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90015', 'http://dx.doi.org/10.26153/16936']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['stochastic reduced order model', 'multi-material topology optimization', 'structural topology optimization', 'topology optimization', 'uncertainty']
Multi-Material Structural Topology Optimization Under Uncertainty via a Stochastic Reduced Order Model Approach
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a3f59ee4-b806-4704-ad4d-2532346a5074/download
University of Texas at Austin
This work presents a stochastic reduced order modeling approach for the solution of uncertainty aware, multi-material, structural topology optimization problems. Uncertainty aware structural topology optimization problems are computationally complex due to the number of model evaluations that are needed to quantify and...
null
null
null
null
null
null
['Janaki Ram, G. D.', 'Robinson, C.', 'Stucker, B. E.']
2020-02-28T15:04:30Z
2020-02-28T15:04:30Z
9/14/06
Mechanical Engineering
null
['https://hdl.handle.net/2152/80108', 'http://dx.doi.org/10.26153/tsw/7129']
eng
2006 International Solid Freeform Fabrication Symposium
Open
Ultrasonic consolidation
Multi-Material Ultrasonic Consolidation
Conference paper
https://repositories.lib.utexas.edu//bitstreams/316a7aa5-e0e8-41ef-a0e4-5cb9a653c56d/download
null
Ultrasonic consolidation (UC) is a recently developed direct metal solid freeform fabrication process. While the process has been well-demonstrated for part fabrication in Al alloy 3003 H18, including with intricate cooling channels, some of the potential strengths of the process have not been fully exploited. One of t...
null
null
null
null
null
null
['Choi, S.H.', 'Cheung, H.H.']
2019-11-20T15:50:19Z
2019-11-20T15:50:19Z
2003
Mechanical Engineering
null
['https://hdl.handle.net/2152/78462', 'http://dx.doi.org/10.26153/tsw/5547']
eng
2003 International Solid Freeform Fabrication Symposium
Open
Multi-Material
A Multi-Material Virtual Prototyping System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e1b21a2f-a30a-4f31-aad4-bb8e933a0890/download
null
This paper proposes a virtual prototyping system for digital fabrication of multimaterial prototypes. It consists mainly of a topological hierarchy-sorting algorithm for processing slice contours, and a virtual simulation system for visualisation and optimisation of multi-material layered manufacturing (MMLM) processes...
The authors would like to acknowledge the Research Grant Council of the Hong Kong SAR Government and the CRCG of the University of Hong Kong for their financial support for this project.
null
null
null
null
null
['Espalin, David', 'Ramirez, Jorge', 'Medina, Francisco', 'Wicker, Ryan']
2021-10-06T21:56:33Z
2021-10-06T21:56:33Z
8/15/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88456', 'http://dx.doi.org/10.26153/tsw/15393']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['fused deposition modeling', 'multi-materials', 'multi-technology', 'thermoplastic parts']
Multi-Material, Multi-Technology FDM System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/80ce4603-a12c-4f42-81ed-544c1764f538/download
University of Texas at Austin
A multi-material, multi-technology FDM system was developed and constructed to enable the production of novel thermoplastic parts. Two legacy FDM systems were modified and installed onto a single manufacturing system to allow the strategic, spatially controlled thermoplastic deposition of multiple materials during the ...
null
null
null
null
null
null
['Khalil, S.', 'Nam, J.', 'Darling, A.', 'Sun, W.']
2020-02-20T18:38:00Z
2020-02-20T18:38:00Z
2004
Mechanical Engineering
null
['https://hdl.handle.net/2152/80038', 'http://dx.doi.org/10.26153/tsw/7060']
eng
2004 International Solid Freeform Fabrication Symposium
Open
solid freeform fabrication
Multi-Nozzle Biopolymer Deposition for Freeform Fabrication of Tissue Constructs
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c827f801-78dc-4ca1-add5-d5fe50d56f08/download
null
Advanced freeform fabrication techniques have been recently used for the construction of tissue scaffolds because of the process repeatability and capability of high accuracy in fabrication resolution at the macro and micro scales. Among many applicable tissue scaffolding materials, polymeric materials have unique prop...
null
null
null
null
null
null
['Aboutaleb, Amir M.', 'Bian, Linkan', 'Shamsaei, Nima', 'Thompson, Scott M.', 'Rao, Prahalad K.']
2021-10-27T21:25:01Z
2021-10-27T21:25:01Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89619
eng
2016 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'multi-objective optimization', 'fused filament fabrication', 'geometry accuracy optimization', 'design of experiments']
Multi-Objective Process Optimization of Additive Manufacturing: A Case Study on Geometry Accuracy Optimization
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4f750348-5ab4-4880-91aa-0268c4bb973a/download
University of Texas at Austin
Despite recent research efforts improving Additive Manufacturing (AM) systems, quality and reliability of AM built products remains as a challenge. There is a critical need to achieve process parameters optimizing multiple mechanical properties or geometry accuracy measures simultaneously. The challenge is that the opt...
null
null
null
null
null
null
['Paudel, Basil J.', 'Masoomi, Mohammad', 'Thompson, Scott M.']
2021-11-30T19:50:41Z
2021-11-30T19:50:41Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90527', 'http://dx.doi.org/10.26153/tsw/17446']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['laser-powder bed fusion', 'optimization', 'heat sink', 'topology', 'fin design']
Multi-Objective Topology Optimization of Additively Manufactured Heat Exchangers
Conference paper
https://repositories.lib.utexas.edu//bitstreams/940219e2-230b-4a7e-a6eb-3687ed6ed45d/download
University of Texas at Austin
The higher design flexibility offered by additive manufacturing (AM) allows for radical improvements in the design and functionality of legacy parts. In this study, a flat-plate heat exchanger is designed and optimized using the ANSYS topology optimization module. Unlike conventional numerical optimization tools, the c...
null
null
null
null
null
null
['MN, Kishore', 'Qian, Dong', 'Li, Wei']
2024-03-26T20:02:43Z
2024-03-26T20:02:43Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124384', 'https://doi.org/10.26153/tsw/50992']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['directed energy deposition', 'low temperature', 'sub-freezing deposition', 'computational fluid dynamics', 'multiphysics modeling']
MULTI-PHYSICS MODELING OF LOW-TEMPERATURE DIRECTED ENERGY DEPOSITION OF STAINLESS STEEL 316L
Conference paper
https://repositories.lib.utexas.edu//bitstreams/2390a86e-ee67-430a-abe9-4ceee2a538db/download
University of Texas at Austin
The Directed energy deposition (DED) process is greatly influenced by the ambient temperature at on-site repair. In Northern Hemisphere locations, DED is particularly influenced by sub-freezing temperatures. However, its influence on the process is not yet studied. This critical gap is fulfilled in this research throug...
null
null
null
null
null
null
['Cheng, Bo', 'Li, Xiaobai', 'Tuffile, Charles', 'Ilin, Alexander', 'Willeck, Hannes', 'Hartel, Udo']
2021-11-15T21:02:59Z
2021-11-15T21:02:59Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90270', 'http://dx.doi.org/10.26153/tsw/17191']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['selective laser melting', 'SLM', 'discrete element method', 'DEM', 'powder bed packing', 'melt pool', 'computational fluid dynamics', 'CFD', 'volume of fluid', 'VOF']
Multi-Physics Modeling of Single Track Scanning in Selective Laser Melting: Powder Compaction Effect
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cfb54c01-7c1f-490b-bff0-ab2a35984b4d/download
University of Texas at Austin
In this work, a microscale computational fluid dynamics (CFD) model was developed for selective laser melting (SLM) process simulation using FLOW3D to study the effect of powder bed recoating methods on melt pool characteristics. The discrete element method (DEM) was used to simulate both the blade and the roller-compa...
null
null
null
null
null
null
['Lehder, E.F.', 'Ashcroft, I.A.', 'Wildman, R.D.', 'Maskery, I.', 'Cantu, L.R.']
2021-11-30T20:07:44Z
2021-11-30T20:07:44Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90531', 'http://dx.doi.org/10.26153/tsw/17450']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['bone scaffolds', 'computational modelling', 'minimal surfaces', 'tissue regeneration', 'level set method', 'multi-scale']
A Multi-Scale Computational Model to Predict the Performance of Cell Seeded Scaffolds with Triply Periodic Minimal Surface Geometries
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0b59b3bf-a5d7-4d73-a623-e8afc8f0d7be/download
University of Texas at Austin
Bone scaffolds are required to replace the painful and dangerous process of bone grafting, currently the gold standard for treating open bone fractures. Tissue engineering scaffolds work best when there is a high amount of surface area for biological cells to attach. Triply Periodic Minimal Surface (TPMS) geometries of...
null
null
null
null
null
null
['Botelho, L.', 'van Blitterswijk, R.H.', 'Khajepour, A.']
2021-12-07T18:32:07Z
2021-12-07T18:32:07Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90751', 'http://dx.doi.org/10.26153/tsw/17670']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['laser additive manufacturing', 'machine learning', 'convolutional neural network']
Multi-track Geometry Prediction in Powder Fed Laser Additive Manufacturing Using Machine Learning
Conference paper
https://repositories.lib.utexas.edu//bitstreams/df4ec261-900c-48e6-b38a-95b9d49f5197/download
University of Texas at Austin
Laser additive manufacturing (LAM) allows for complex geometries to be fabricated without the limitations of conventional manufacturing. However, LAM is highly sensitive to small disturbances, resulting in variation in the geometry of the produced layer (clad). Therefore, in this research a monitoring algorithm is disc...
null
null
null
null
null
null
['Folgar, C.E.', 'Folgar, L.N.', 'Cormier, D.']
2021-10-07T18:18:15Z
2021-10-07T18:18:15Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88498', 'http://dx.doi.org/10.26153/tsw/15432']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['laser sintering', 'direct printing', 'multifunctional material', 'part strength', 'electrical conductivity']
Multifunctional Material Direct Printing for Laser Sintering Systems
Conference paper
https://repositories.lib.utexas.edu//bitstreams/93cc0a72-bb1c-4767-89aa-9767bca10722/download
University of Texas at Austin
The research reports the development of advanced techniques for the direct print of materials into parts made by laser sintering. The present invention provides for the production of three-dimensional objects with improved build and support materials. The direct printed material may be metals, elastomers, ceramic, or a...
null
null
null
null
null
null
['Johannes, S.J.', 'Keicher, D.M.', 'Lavin, J.M.', 'Secor, E.B.', 'Whetten, S.R.', 'Essien, M.']
2021-11-09T18:51:19Z
2021-11-09T18:51:19Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90116', 'http://dx.doi.org/10.26153/tsw/17037']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['aerosol jet printing', 'direct-write printing', 'circuit elements', 'toroidal inductor', 'additive manufacturing']
Multimaterial Aerosol Jet Printing of Passive Circuit Elements
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6bf96d30-27b2-4df2-af5c-bf00b1c73c9c/download
University of Texas at Austin
Recent advances in additive manufacturing technologies present opportunities for rethinking the design and fabrication of electronic components. An area of considerable interest for electronic printing is the production of multi-layered, multi-material passive components. This research focuses on the design and fabrica...
null
null
null
null
null
null
['Geiger, Martin', 'Greul, Matthias', 'Steger, Wilhelm', 'Sindel, Manfred']
2018-09-26T16:48:03Z
2018-09-26T16:48:03Z
1994
Mechanical Engineering
doi:10.15781/T2348H18X
http://hdl.handle.net/2152/68581
eng
1994 International Solid Freeform Fabrication Symposium
Open
['Multiphase Jet Solidification', 'RP Technologies', '3D Modeler of Stratasys']
Multiphase Jet Solidification - a new process towards metal prototypes and a new data interface
Conference paper
https://repositories.lib.utexas.edu//bitstreams/34bc59a2-8ae9-463e-bc49-722b963e76fd/download
null
The production of metallic and ceramic parts with RP technologies is requested. Multiphase Jet Solidification (MJS) is a process which reveals good results to develop a commercial system due to this task. Low viscous materials (liquefied substances or powder-binder~pastes) are extruded through an x-y-z~ontrolled jet an...
null
null
null
null
null
null
['Rangapuram, M.', 'Yang, M.', 'Babalola, S.', 'Newkirk, J.W.', 'Bartlett, L.N.', 'Liou, F.F.', 'Chandrashekhara, K.']
2023-03-30T16:12:24Z
2023-03-30T16:12:24Z
2022
Mechanical Engineering
null
['https://hdl.handle.net/2152/117698', 'http://dx.doi.org/10.26153/tsw/44577']
eng
2022 International Solid Freeform Fabrication Symposium
Open
Laser powder bed fusion
A Multiphysics Modeling Approach to Assess the Powder Bed Characteristics of High Strength Steel in Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f70de131-790e-4c59-b60d-7511af969643/download
null
Selective laser melting (SLM) is a type of additive manufacturing technique which uses a powder bed to form complex metal parts in a layer-by-layer process. The density of the powder bed in SLM affects the mechanical properties of the produced part. Good powder packing results in a higher powder bed density which in...
null
null
null
null
null
null
['Caglar, H.', 'Liang, A.', 'Mumtaz, K.']
2024-03-26T21:35:59Z
2024-03-26T21:35:59Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124421', 'https://doi.org/10.26153/tsw/51029']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['laser powder bed fusion', 'diode area melting', 'Ti-6Al-4V', 'additive manufacturing']
MULTIPLE 450 nm DIODE LASER PROCESSING OF TI64 POWDER
Conference paper
https://repositories.lib.utexas.edu//bitstreams/aae75500-33e1-4a25-8eaf-dca7c7aecca2/download
University of Texas at Austin
Diode Area Melting (DAM) presents an alternative approach to traditional Laser Powder Bed Fusion (PBF-LB/M) approaches, integrating multiple individually addressable low-power fibre-coupled diode lasers into a laser head; these traverse across a powder bed to melt powdered feedstock. DAM research to date has focused on...
null
null
null
null
null
null
['Leite, M.', 'Frutuoso, N.', 'Soares, B.', 'Ventura, R.']
2021-11-15T22:01:50Z
2021-11-15T22:01:50Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90286', 'http://dx.doi.org/10.26153/tsw/17207']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['large parts', 'FDM', 'collaborative deposition heads']
Multiple Collaborative Printing Heads in FDM: The Issues in Process Planning
Conference paper
https://repositories.lib.utexas.edu//bitstreams/1430a740-68fb-47b8-9e62-7117d98246c7/download
University of Texas at Austin
One of the main drawbacks of large-scale FDM is fabrication time, due to the use of a single deposition head. In this paper we propose a novel approach to tool-path generation for a system with multiple collaborative independent deposition heads. This system allows the size of the parts to increase considerably in comp...
null
null
null
null
null
null
['Wicker, Ryan', 'Medina, Francisco', 'Elkins, Chris']
2020-02-17T15:40:23Z
2020-02-17T15:40:23Z
8/4/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/80013', 'http://dx.doi.org/10.26153/tsw/7038']
eng
2004 International Solid Freeform Fabrication Symposium
Open
['multiple material stereolithography', 'rapid prototyping', 'micro-stereolithography']
Multiple Material Micro-Fabrication: Extending Stereolithography to Tissue Engineering and Other Novel Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/61f2ec11-728b-433b-a70b-33cc55ffc399/download
null
A design for modifying an existing 3D Systems stereolithography (SL) apparatus 250/50 was developed to accommodate multiple material fabrication for building multi-material, multifunctional and multi-colored prototypes, models and devices. The machine was configured for automated access to an intermediate washing, curi...
null
null
null
null
null
null
['Choi, Jae-Won', 'MacDonald, Eric', 'Wicker, Ryan']
2021-09-29T20:12:08Z
2021-09-29T20:12:08Z
2009-09
Mechanical Engineering
null
['https://hdl.handle.net/2152/88210', 'http://dx.doi.org/10.26153/tsw/15151']
eng
2009 International Solid Freeform Fabrication Symposium
Open
['microstereolithography (µSL)', 'multi-material fabrication']
Multiple Material Microstereolithography
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ef014224-446f-4342-ab0d-d1b597ef4ddd/download
University of Texas at Austin
We have previously described the development of a µSL system using a Digital Micromirror Device (DMDTM) for dynamic pattern generation and an ultraviolet (UV) lamp filtered at 365 nm for crosslinking the photoreactive polymer solution. The µSL system was designed with x-y resolution of ~2 µm and a vertical (z) resoluti...
null
null
null
null
null
null
['Snarr, Scott E.', 'Najera, Andres', 'Beaman, Joseph Jr.', 'Haas, Derek']
2021-12-07T18:30:25Z
2021-12-07T18:30:25Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90750', 'http://dx.doi.org/10.26153/tsw/17669']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['mutliple-material powder bed fusion', 'machine development', 'nozzle-based powder deposition', 'cross-contamination', 'design of experiments']
Multiple-Material Powder Bed Fusion Machine Development: Reducing Cross-Contamination between Materials
Conference paper
https://repositories.lib.utexas.edu//bitstreams/0295547c-bf90-4cef-b82a-8174e719c51a/download
University of Texas at Austin
Powder bed fusion is an additive manufacturing technology capable of producing fully dense, high strength parts with complex geometries. However, it is currently only able to fabricate parts comprised of a single material. Multiple-material capabilities would allow for an added level of design complexity and the matchi...
null
null
null
null
null
null
['Meisel, Nicholas A.', 'Gaynor, Andrew', 'Williams, Christopher B.', 'Guest, James K.']
2021-10-12T18:48:06Z
2021-10-12T18:48:06Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88717', 'http://dx.doi.org/10.26153/tsw/15651']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['topology optimization', 'PolyJet', '3D printing', 'multiple materials', 'compliant mechanisms', 'material jetting']
Multiple-Material Topology Optimization of Compliant Mechanisms Created via Polyjet 3D Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/097f6036-ff64-454d-a15a-cb5524dacf6f/download
University of Texas at Austin
Compliant mechanisms are able to transfer motion, force, and energy using a monolithic structure without discrete hinge elements. The geometric design freedoms and multi-material capability offered by the PolyJet 3D printing process enables the fabrication of compliant mechanisms with optimized topology. The inclusion ...
null
null
null
null
null
null
['Arrieta, Edel', 'Mireles, Jorge', 'Stewart, Calvin', 'Carrasco, Cesar', 'Wicker, Ryan B.']
2021-11-04T19:14:02Z
2021-11-04T19:14:02Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90006', 'http://dx.doi.org/10.26153/16927']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['cellular solids', 'unit-cell', 'EBM', 'Ti-6Al-4V', 'digital image correlation', 'microstructure']
Multiscale Analysis of Cellular Solids Fabricated by EBM
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5711d80f-e0d5-4621-ac8e-112109d36d8f/download
University of Texas at Austin
Additive Manufacturing technologies such as Electron Beam Melting are empowering individuals to develop novelty materials by introducing hierarchical levels into solids. Features from the introduced architectures and the manufacturing technology grant these metamaterials with mechanical performances not commonly seen i...
null
null
null
null
null
null
['Seepersad, Carolyn Conner', 'Shahan, David', 'Madhavan, Kaarthic']
2020-03-10T14:23:29Z
2020-03-10T14:23:29Z
2007
Mechanical Engineering
null
['https://hdl.handle.net/2152/80209', 'http://dx.doi.org/10.26153/tsw/7228']
eng
2007 International Solid Freeform Fabrication Symposium
Open
solid freeform fabrication
Multiscale Design for Solid Freeform Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/dbb183e4-0a78-40e1-816d-d4c6c34c19bf/download
null
One of the advantages of solid freeform fabrication is the ability to fabricate complex structures on multiple scales, from the macroscale features of an overall part to the mesoscale topology of its internal architecture and even the microstructure or composition of the constituent material. This manufacturing freedom...
null
null
null
null
null
null
['Morris, C.', 'Debeau, D.', 'Dressler, A.', 'Seepersad, C.C.']
2021-11-03T22:36:10Z
2021-11-03T22:36:10Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89952
eng
2017 International Solid Freeform Fabrication Symposium
Open
['operating parameters', 'multisystem model', 'optimization', 'solar sintering system']
Multisystem Modeling and Optimization of Solar Sintering System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/403609b6-fe09-492a-92e7-7ad494a7f597/download
University of Texas at Austin
In developing countries, the production of building materials such as tile and brick, require large amounts of non-renewable energy and/or time to produce. Previous work has shown that solar sintering machines are capable of producing ceramic parts in a viable amount of time using only solar energy. The systems focus s...
null
null
null
null
null
null
['Nath, P.', 'Hu, Z.', 'Mahadevan, S.']
2021-11-02T20:38:05Z
2021-11-02T20:38:05Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89891
eng
2017 International Solid Freeform Fabrication Symposium
Open
['uncertainty quantification', 'additive manufacturing', 'multi-level', 'simulation']
Mutli-Level Uncertainty Quantification in Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b9e55226-ee62-4dd4-851a-610a0d6ddecd/download
University of Texas at Austin
Quantifying the uncertainty in additive manufacturing (AM) process plays an important role in the quality control of additively manufactured products. This work presents an uncertainty quantification (UQ) framework to quantify the uncertainty of material microstructure due to multiple uncertainty (aleatory and epistemi...
null
null
null
null
null
null
['Behera, Dipankar', 'Roy, Nilabh K.', 'Foong, Chee S.', 'Cullinan, Michael']
2021-11-16T15:19:04Z
2021-11-16T15:19:04Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90310', 'http://dx.doi.org/10.26153/tsw/17231']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['powder bed deposition', 'slot-die coating', 'nanoparticle', 'microscale selective laser sintering', 'µ-SLS']
Nanoparticle Bed Deposition by Slot Die Coating for Microscale Selective Laser Sintering Applications
Conference paper
https://repositories.lib.utexas.edu//bitstreams/74545fbd-0ffc-4ec7-a4ce-87523eb45b97/download
University of Texas at Austin
The minimum feature size in most commercially available metal additive manufacturing (AM) processes is limited to ~100 microns which poses a fundamental challenge in fabricating complex 3D micro-components. The authors have developed a microscale selective laser sintering (µ-SLS) process with the goal of fabricating th...
null
null
null
null
null
null
['Roth, J.-P.', 'Sulak, I.', 'Chlup, Z.', 'Fischer-Buhner, J.', 'Krupp, U.', 'Jahns, K.']
2024-03-26T16:40:48Z
2024-03-26T16:40:48Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124365', 'https://doi.org/10.26153/tsw/50973']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['NiCu', 'Alloy 400', 'nanoparticle', 'laser powder bed fusion', 'additive manufacturing']
NANOPARTICLE-MODIFICATION OF NICU-BASED ALLOY 400 FOR LASER POWDER BED FUSION
Conference paper
https://repositories.lib.utexas.edu//bitstreams/73c6858b-e536-4e95-b001-c250f94cb225/download
University of Texas at Austin
NiCu-based Alloy 400 is a material being frequently used in corrosive environments wherefore it is applied in several industries like the maritime sector or chemical processing [1]. Numerous functional parts made of this alloy, like heat exchangers or liquid-carrying tubes for instance, may withstand harsh environments...
null
null
null
null
null
null
['Sandoval, J. H.', 'Ochoa, L.', 'Hernandez, A.', 'Lozoya, O.', 'Soto, K. F.', 'Murr, L. E.', 'Wicker, R. B.']
2020-02-27T19:07:18Z
2020-02-27T19:07:18Z
8/3/05
Mechanical Engineering
null
['https://hdl.handle.net/2152/80091', 'http://dx.doi.org/10.26153/tsw/7112']
eng
2005 International Solid Freeform Fabrication Symposium
Open
rapid prototyping
Nanotailoring Stereolithography Resins for Unique Applications using Carbon Nanotubes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/dc9390d8-74be-490a-ad26-b4f9f9b77606/download
null
Nanostructured materials and exploiting their properties in stereolithography (SL) may open new markets for unique rapidly manufactured functional devices. Controlled amounts of multiwalled carbon nanotubes (MWCNTs) were successfully dispersed in SL epoxy-based resins and complex three-dimensional (3D) parts were succe...
null
null
null
null
null
null
['Roberts, Christopher E.', 'Ledbetter, Frank', 'Jones, Jennifer M.', 'Courtright, Zach', 'Blanchard, Alexander']
2024-03-26T23:14:06Z
2024-03-26T23:14:06Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124445', 'https://doi.org/10.26153/tsw/51053']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['NASA', 'in-space manufacturing', 'metal', 'additive manufacturing']
NASA Technology Maturation Plan for In-space Manufacturing of Metals
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a06d9e21-bc02-4c97-87b9-e0b073c9d1d8/download
University of Texas at Austin
As the International Space Station’s (ISS) life approaches its end, NASA intends to travel back to the Moon and establish a sustainable presence, paving a pathway towards Mars. A fundamental shift in the current logistics strategy is required to support extended missions. Ondemand manufacturing enables reduced operatio...
null
null
null
null
null
null
['Correa, D.M.', 'Klatt, T.D.', 'Cortes, S.A.', 'Haberman, M.R.', 'Kovar, D.', 'Seepersad, C.C.']
2021-10-13T20:55:34Z
2021-10-13T20:55:34Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88783', 'http://dx.doi.org/10.26153/tsw/15717']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['negative stiffness honeycomb', 'negative stiffness', 'external load', 'recoverable shock', 'laser sintering']
Negative Stiffness Honeycombs for Recoverable Shock Isolation
Conference paper
https://repositories.lib.utexas.edu//bitstreams/41f305e1-0e30-4f72-b4c0-8e27a00e3e45/download
University of Texas at Austin
Negative stiffness honeycomb materials are comprised of unit cells that exhibit negative stiffness or snap-through-like behavior. Under an external load of small magnitude, a negative stiffness honeycomb exhibits large effective elastic modulus, equivalent to those of other standard honeycomb topologies. When the exter...
null
null
null
null
null
null
Gervasi, Vito R.
2018-11-29T20:16:35Z
2018-11-29T20:16:35Z
1997
Mechanical Engineering
doi:10.15781/T28P5VW1T
http://hdl.handle.net/2152/70337
eng
1997 International Solid Freeform Fabrication Symposium
Open
['SFF', 'SLA']
Net Shape Composites Using SLA Tetracast Patterns
Conference paper
https://repositories.lib.utexas.edu//bitstreams/448e9380-e38e-4e0b-8d5a-f8c2ada024ab/download
null
Net-shape composites have been a focus of Solid Freeform Fabrication (SFF) for a number of years. A new method to achieve net-shape composites uses hollow Stereolithography (SLA) TetraCast* patterns. The TetraCast* pattern is injected with a filler material consisting of a matrix (typically epoxy) and reinforcement fib...
null
null
null
null
null
null
['Klosterman, Don', 'Chartoff, Richard', 'Osborne, Nora', 'Graves, George', 'Lightman, Allan', 'Bezeredi, Akos']
2019-03-01T17:45:27Z
2019-03-01T17:45:27Z
1998
Mechanical Engineering
null
['https://hdl.handle.net/2152/73522', 'http://dx.doi.org/10.26153/tsw/672']
eng
1998 International Solid Freeform Fabrication Symposium
Open
['LOM', 'Lamination']
Net Shape Fabrication of SiC and SiC/SiC Components Using Laminated Object Manufacturing (LaM): Overall Process Flowchart
Conference paper
https://repositories.lib.utexas.edu//bitstreams/ddfa736b-92a8-400d-a7da-e26ccf738687/download
null
null
null
null
null
null
null
null
['Manzur, Tariq', 'Roychoudhuri, Chandra', 'Dua, Puneit', 'Hossain, Fahmida', 'Marcus, Harris']
2018-11-28T20:57:14Z
2018-11-28T20:57:14Z
1997
Mechanical Engineering
doi:10.15781/T2FF3MK37
http://hdl.handle.net/2152/70330
eng
1997 International Solid Freeform Fabrication Symposium
Open
['desk-top manufacturing', 'diode laser']
Net shape Functional Parts Using Diode Laser
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a9569352-4731-412e-862e-44d2d9c396ea/download
null
Manufacturing processes, such as cutting, drilling, soldering, marking, forming 3Dsintered parts from metal powders and laser vapor deposition, are now well established practices using matured high power lasers like Nd:YAG, C02 and Excimer lasers(l). These lasers are bulky, inefficient and expensive. Semiconductor diod...
null
null
null
null
null
null
['Marin, Nena', 'Crawford, Richard H.']
2018-11-08T15:52:03Z
2018-11-08T15:52:03Z
1995
Mechanical Engineering
doi:10.15781/T2XW48G10
http://hdl.handle.net/2152/69895
eng
1995 International Solid Freeform Fabrication Symposium
Open
['SLS', 'CT', '3D CT reconstructions']
A Neural Network Architecture to Identify the Bone Tissue for Solid Freeform Fabrication
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e2742f97-0b88-4ee0-b118-ba52c6de35e0/download
null
Computed tomography produces sets of tomograms for medical interpretation. Typical interpretation consists of imaging and simple observation on a 2D display screen, so that feature extraction and tissue differentiation is based primarily on human expertise. Solid freeform fabrication offers the promise of fabrication o...
null
null
null
null
null
null
['Hayasi, Mohammad', 'Asiabanpour, Bahram']
2021-10-04T21:47:08Z
2021-10-04T21:47:08Z
8/17/11
Mechanical Engineering
null
['https://hdl.handle.net/2152/88359', 'http://dx.doi.org/10.26153/tsw/15298']
eng
2011 International Solid Freeform Fabrication Symposium
Open
['adaptive slicing', 'design-by-feature', 'fully dense freeform fabrication', 'FDFF']
A New Adaptive Slicing Approach for the Fully Dense Freeform Fabrication (FDFF) Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/500ca05a-2e82-4265-b1f1-de9b460a72ed/download
University of Texas at Austin
FDFF is a process based on thin line cutting processes, variable thickness layering, slicing in different orientations, and bulk layer attachment. The combination of these capabilities enables the production of good quality complex parts from practically any material at a very fast pace. As for rapid prototypes fabrica...
null
null
null
null
null
null
['Darrah, James', 'Wielgus, Martin']
2018-04-10T18:59:09Z
2018-04-10T18:59:09Z
1990
Mechanical Engineering
doi:10.15781/T2XS5K066
http://hdl.handle.net/2152/64248
eng
1990 International Solid Freeform Fabrication Symposium
Open
['SFF', 'machine designer', 'DTM']
A New CAD Model Format For SFF Machines?
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5158e5eb-1da9-4a35-8453-cb5828597c76/download
null
This paper addresses the issue of a standard input data fonnat for Solid Freefonn Fabrication (SFF) machines. Currently implemented approaches do not address the different aspects of Solid Freefonn Fabrication. This paper will state the requirements from the perspective of the SFF machine designer and make recommendati...
null
null
null
null
null
null
['Asiabanpour, Bahram', 'Cano, Robert', 'VanWagner, Lane', 'McCormick, Thomas', 'Wasik, Farhana']
2020-02-20T20:08:42Z
2020-02-20T20:08:42Z
8/17/05
Mechanical Engineering
null
https://hdl.handle.net/2152/80047
eng
2005 International Solid Freeform Fabrication Symposium
Open
['Selective Inhibition of Sintering', 'Waste saving', 'Heater Design']
New Design for Conserving Polymer Powder for the SIS Rapid Prototyping Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/481b142f-c24f-4c7e-80da-243e38f74f33/download
null
Selective Inhibition of Sintering (SIS) is a Rapid Prototyping process that makes parts in a layerbased method by using polymer powders. Current SIS machines accomplish this layer-based method by heating a fixed area of polymer powder. The current process is an area of concern because the entire fixed area of each laye...
null
null
null
null
null
null
['Thissell, W. Richards', 'Marcus, H.L.']
2018-10-03T16:42:26Z
2018-10-03T16:42:26Z
1994
Mechanical Engineering
doi:10.15781/T2ZS2KZ4Z
http://hdl.handle.net/2152/68662
eng
1994 International Solid Freeform Fabrication Symposium
Open
['Selected area laser deposition', '3D printing', 'solid freeform fabrication']
New Developments in Processing and Control of Selected Area Laser Deposition of Carbon
Conference paper
https://repositories.lib.utexas.edu//bitstreams/353ad7e0-ab34-4444-8214-ef9728b9bcef/download
null
Selected area laser deposition (SALD) has been used to deposit carbon from methane, hydrogen, oxygen, and argon mixtures using a third generation deposition system. The effect of two laser scanning hardware/software designs on the development of morphological instability in the resulting deposit is compared. One method...
null
null
null
null
null
null
['Shuttleworth, M.P.', 'Esfahani, M.N.', 'Marques-Hueso, J.', 'Jones, T.D.A.', 'Ryspayeva, A.', 'Desmulliez, M.P.Y.', 'Harris, R.A.', 'Kay, R.W.']
2021-11-09T15:48:32Z
2021-11-09T15:48:32Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90101', 'http://dx.doi.org/10.26153/tsw/17022']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['co-fabrication', 'flex-rigid electronics', 'electronic circuitry', 'new manufacturing', 'additive manufacturing']
A New Digitally Driven Process for the Fabrication of Integrated Flex-Rigid Electronics
Conference paper
https://repositories.lib.utexas.edu//bitstreams/111e94e0-5616-4a6e-bd2f-63865f64c855/download
University of Texas at Austin
Conventionally, flexible and rigid electronics are produced separately using mask-based lithography techniques thus requiring connectors to join circuits together introducing potential failure modes and additional assembly. This work demonstrates a new manufacturing approach which overcomes this limitation by allowing ...
null
null
null
null
null
null
['Zeng, Kai', 'Pal, Deepankar', 'Patil, Nachiket', 'Stucker, Brent']
2021-10-11T21:21:36Z
2021-10-11T21:21:36Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88647', 'http://dx.doi.org/10.26153/tsw/15581']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['Selective Laser Melting', 'temperature evolution', 'dynamic moving mesh method', 'mesh method', 'computational enhancements', 'fine-scale solution']
A New Dynamic Mesh Method Applied to the Simulation of Selective Laser Melting
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a9ff09d1-d590-4de0-932b-35a69af0bc6f/download
University of Texas at Austin
The process of Selective Laser Melting (SLM) involves the moving of a laser beam across a powder bed to melt material layer by layer. From the standpoint of modeling, this simple procedure is complicated to capture accurately. SLM involves very high laser intensity values, on the order of 1010 W/m2 and a Heat Affected...
null
null
null
null
null
null
['Qiu, Dan', 'Langrana, Noshir A.']
2019-09-23T16:47:15Z
2019-09-23T16:47:15Z
2000
Mechanical Engineering
null
['https://hdl.handle.net/2152/75966', 'http://dx.doi.org/10.26153/tsw/3065']
eng
2000 International Solid Freeform Fabrication Symposium
Open
Analysis
A New Feature in an Extrusion Based LM Process – Adaptive Roadwidth 399
Conference paper
https://repositories.lib.utexas.edu//bitstreams/43332397-2b37-4985-bb9d-384eb06ba804/download
null
For extrusion based LM processes, a computational based adaptive roadwidth algorithm have been developed which further reduces (if not eliminate) all voids and defects. Toolpath equations are written in terms of roadwidth, vector path offset, subperimeter offset, and vector angles. The program computes all contours and...
null
null
null
null
null
null
['Rodriguez, Nicholas', 'Crawford, Richard']
2021-11-08T23:04:14Z
2021-11-08T23:04:14Z
2017
Mechanical Engineering
null
['https://hdl.handle.net/2152/90070', 'http://dx.doi.org/10.26153/tsw/16991']
eng
2017 International Solid Freeform Fabrication Symposium
Open
['3D printed parts', 'high strength', 'ductile', 'filament deposition', 'fused deposition modeling', '3D printer', '3D printing']
New Filament Deposition Technique for High Strength, Ductile 3D Printed Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/649ba7ff-0635-41a6-a852-8dcaa0e0b8b8/download
University of Texas at Austin
This paper proposes a method to use an off-the-shelf commercial Fused Deposition Modeling (FDM) 3D printer with minimal modifications to manufacture higher strength parts that fail in a ductile rather than brittle manner. A novel scan pattern designed to increase interlayer adhesion in FDM parts is modeled and tested t...
null
null
null
null
null
null
['Patil, Nachiket', 'Pal, Deepankar', 'Stucker, Brent']
2021-10-11T21:18:32Z
2021-10-11T21:18:32Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88645', 'http://dx.doi.org/10.26153/tsw/15579']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'Selective Laser Melting', 'powder bed fusion', 'dimensional reduction', 'phenomenological multi-scale simulation', 'finite element analysis', 'Eigen modes', 'mask projection']
A New Finite Element Solver using Numerical Eigen Modes for Fast Simulation of Additive Manufacturing Processes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5c00a3ed-cd95-4e47-891a-773d6bf51d9a/download
University of Texas at Austin
A new efficient numerical technique has been formulated for dimensional reduction and phenomenological multi-scale simulation of additive manufacturing processes using finite element analysis. This technique is demonstrated using prismatic build volumes to represent the Selective Laser Melting powder bed fusion additiv...
null
null
null
null
null
null
['Yen, H. C.', 'Chiu, M. L.', 'Huang, P. H.']
2020-03-11T15:23:01Z
2020-03-11T15:23:01Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/80250', 'http://dx.doi.org/10.26153/tsw/7269']
eng
2008 International Solid Freeform Fabrication Symposium
Open
Ceramic Laser Fusion
A New Layer Casting System for Ceramic Laser Rapid Prototyping Apparatus
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4a794e0d-f107-4043-9e66-7b0ad99e1794/download
null
In the existing Ceramic Laser Fusion system, slurry is fed on the high temperature surface of the green part; therefore, a part of water infiltrates into the green block and vaporizes before the process of layer casting. As a result, the slurry viscosity rises gradually; the quality of the layer surface is not uniform,...
null
null
null
null
null
null
['Marchelli, Grant', 'Ganter, Mark', 'Storti, Duane']
2021-09-29T14:37:23Z
2021-09-29T14:37:23Z
9/15/09
Mechanical Engineering
null
['https://hdl.handle.net/2152/88183', 'http://dx.doi.org/10.26153/tsw/15124']
eng
2009 International Solid Freeform Fabrication Symposium
Open
['3D printing', 'new material/binder systems', 'mid-fire to high-fire ceramics']
New Material Systems for 3D Ceramic Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b1097313-9be8-4530-bf71-e880560e2a3d/download
University of Texas at Austin
We present new material/binder systems for use in 3D printing hardware for the creation of mid-fire to high-fire ceramics. 3D printing is one of a variety of techniques in which objects are produced by printing binder onto a layer of powder. A brief overview of our process is presented and demonstration works are shown...
null
null
null
null
null
null
['Keller, Nils', 'Ploshikhin, Vasily']
2021-10-18T22:09:34Z
2021-10-18T22:09:34Z
2014
Mechanical Engineering
null
https://hdl.handle.net/2152/89269
eng
2014 International Solid Freeform Fabrication Symposium
Open
['additive manufacturing', 'residual stress', 'residual distortion', 'manufacturing predictions', 'mechanical layer equivalent']
New Method for Fast Predictions on Residual Stress and Distortion of AM Parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/64482aa9-945e-4037-a164-afa6c958eb0f/download
University of Texas at Austin
A new multi-scale approach based on the method of finite elements is developed in order to enable much faster predictions of residual stress and distortion for AM parts. The approach includes the calibration of the heat source, the analysis of scanning strategies, the generation of the so-called “mechanical layer equiv...
null
null
null
null
null
null
['Khodabakhshi, K.', 'Gilbert, M.', 'Dickens, P.', 'Hague, R.', 'Fathi, S.']
2021-09-29T14:47:02Z
2021-09-29T14:47:02Z
2009-09
Mechanical Engineering
null
['https://hdl.handle.net/2152/88186', 'http://dx.doi.org/10.26153/tsw/15127']
eng
2009 International Solid Freeform Fabrication Symposium
Open
['polymerization mixture formulation', 'jetting process', 'polyamide 6 parts']
New polymerization-mixture formulation for jetting: An approach to production of polyamide 6 parts
Conference paper
https://repositories.lib.utexas.edu//bitstreams/cd0b3f22-ebf7-49ff-a851-3cc3e78a453d/download
University of Texas at Austin
Poor mechanical properties of manufactured parts is one of the main problems in most of the RP and RM processes. This work deals with a study on formulation of new polymerization mixtures with the aim of being used in jetting process. Two different catalyst components were compared in order to shorten the solidificatio...
null
null
null
null
null
null
['Uhlmann, E.', 'Elsner, P.']
2020-02-20T20:30:33Z
2020-02-20T20:30:33Z
2005
Mechanical Engineering
null
https://hdl.handle.net/2152/80050
eng
2005 International Solid Freeform Fabrication Symposium
Open
polymer applications
New Printing Technology for Fully Graduated Material Properties
Conference paper
https://repositories.lib.utexas.edu//bitstreams/263268b9-ec44-423c-b472-96aaa0ebcf30/download
null
null
null
null
null
null
null
null
['Cevolini, Franco', 'Davis, Stewart', 'Rinland, Sergio']
2021-09-23T22:40:14Z
2021-09-23T22:40:14Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/88042', 'http://dx.doi.org/10.26153/tsw/14983']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['CRP Rapid Casting Method', 'competitive motor sports', 'Epsilon Euskadi eel']
New Rapid Casting Techniques for Competitive Motor Sports
Conference paper
https://repositories.lib.utexas.edu//bitstreams/5cdfe931-3481-4ceb-a923-56a3e98b3285/download
null
Casting components utilizing free form manufacturing techniques to produce investment patterns have in recent years been overshadowed by the promise of Direct Metal machines. Despite this casting vendors continue to work diligently to make the creation of extremely complex components as an almost common place occurrenc...
null
null
null
null
null
null
['Ventura, Susanna C.', 'Narang, Subhash C.', 'Sharma, Sunity', 'Stotts, John', 'Liu, Chunling', 'Liu, Susan', 'Ho, Lung-Hua', 'Annavajjula, Durga', 'Lombardo, Steven J.', 'Hardy, Anne', 'Mangaudis, Mike', 'Chen, Eric', 'Groseclose, Lance']
2018-11-14T17:52:46Z
2018-11-14T17:52:46Z
1996
Mechanical Engineering
doi:10.15781/T2G15TX0P
http://hdl.handle.net/2152/70252
eng
1996 International Solid Freeform Fabrication Symposium
Open
['CAD/CAM', 'SFF', 'UV curable polymers']
A New SFF Process for Functional Ceramic Components
Conference paper
https://repositories.lib.utexas.edu//bitstreams/6fe955ac-d7cd-48fc-bfd8-23823a2ce6ed/download
null
SRI International in collaboration with Saint-Gobain/Norton Industrial Ceramics Corporation and Allison Engine Company is developing a new SFF process, Direct Photo Shaping, for the fabrication of functional ceramic components. The process is based on the layerby-layer photocuring of ceramic slurries containing monomer...
null
null
null
null
null
null
['Rock, Stephen J.', 'Gilman, Charles R.']
2018-10-04T20:02:13Z
2018-10-04T20:02:13Z
1995
Mechanical Engineering
doi:10.15781/T2WM14C85
http://hdl.handle.net/2152/68709
eng
1995 International Solid Freeform Fabrication Symposium
Open
['freeform powder molding', 'SFF', 'prototyping methods']
A New SFF Process for Functional Part Rapid Prototyping and Manufacturing: Freeform Powder Molding
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4b5399f8-388c-4ccf-8523-088f4beeeada/download
null
Freeform Powder Molding l (FPM), a new Solid Freeform Fabrication process capable of directly producing functional parts from a wide range of structural materials, is presently being developed. This paper describes the fundamental process concept currently pending patent and provides early results demonstrating process...
null
null
null
null
null
null
['Wang, Feng', 'Chen, Ke-Zhang', 'Feng, Xin-An']
2020-02-13T19:54:53Z
2020-02-13T19:54:53Z
8/24/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/79971', 'http://dx.doi.org/10.26153/tsw/6996']
eng
2004 International Solid Freeform Fabrication Symposium
Open
composite materials
Novel Implementations of Plasma Spraying for Fabricating Components Made of a Multiphase Perfect Material
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c8946b11-d459-4135-98da-33d5875c9876/download
null
A component, which has a perfect combination of different materials (including homogeneous materials and different types of heterogeneous materials) in its different portions for a specific application, is considered as the component made of a multiphase perfect material. Based on the requirements for fabricating diffe...
null
null
null
null
null
null
['Slightam, Jonathon E.', 'Gervasi, Vito R.']
2021-10-05T18:45:05Z
2021-10-05T18:45:05Z
8/18/12
Mechanical Engineering
null
['https://hdl.handle.net/2152/88404', 'http://dx.doi.org/10.26153/tsw/15343']
eng
2012 International Solid Freeform Fabrication Symposium
Open
['Additive Manufacturing', 'fluid power components/systems', 'solid state actuators', 'solid state actuator systems', 'Milwaukee School of Engineering']
Novel Integrated Fluid-Power Actuators for Functional End-Use Components and Systems via Selective Laser Sintering Nylon 12
Conference paper
https://repositories.lib.utexas.edu//bitstreams/fda4555e-729d-481a-9994-b6aaf627c052/download
University of Texas at Austin
The Milwaukee School of Engineering (MSOE) and the Additive Manufacturing (AM) community have an interest in expanding applications of AM and broadening market opportunities. Specific areas of interest include robotics and fully functional components/systems. MSOE has developed methods for streamlining the development ...
null
null
null
null
null
null
['Wang, Z.', 'Zhang, Y.', 'Bernard, A.']
2021-12-06T23:33:18Z
2021-12-06T23:33:18Z
2021
Mechanical Engineering
null
['https://hdl.handle.net/2152/90718', 'http://dx.doi.org/10.26153/tsw/17637']
eng
2021 International Solid Freeform Fabrication Symposium
Open
['tool-path', 'constructuve design', 'triply periodic minimal surface', 'knowledge-based system']
A Novel Knowledge-Based Toolpath Constructive Approach for Designing High-Precision Graded Lattice Structures
Conference paper
https://repositories.lib.utexas.edu//bitstreams/662eb205-3ecd-4e08-9b27-836ee615f2d2/download
University of Texas at Austin
Current part-scale lattice design methods cause accuracy loss and manufacturability uncertainty in AM preparation stages. STL model conversion and slicing can lead to loss of shape accuracy and surface quality, while unqualified toolpaths may cause printing failures, e.g. pores or re-melting in the powder-bed fusion pr...
null
null
null
null
null
null
['Pogue, Robert T.', 'Chartoff, Richard P.']
2018-12-05T16:46:02Z
2018-12-05T16:46:02Z
1997
Mechanical Engineering
doi:10.15781/T26970J2T
http://hdl.handle.net/2152/71397
eng
1997 International Solid Freeform Fabrication Symposium
Open
['spectroscopy', 'stereolithography']
Novel Liquid Crystal Monomers for Stereolithography: Reaction Rates and Photopolymerization Conversion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/37cfe08d-877d-49ff-9f62-bd4ac8e01d9e/download
null
Liquid crystal (LC) monomers are a novel type ofresin for stereolithography that result in polymers having unique physical and mechanical properties. These monomers consist ofrigid central cores connected to acrylate functional groups by short aliphatic chains. Because ofthe rigid-rod structure ofthe monomer the cross-...
null
null
null
null
null
null
['Schultz, J. W.', 'Ullett, J. S.', 'Chartoff, R. P.', 'Pogue, R.T.']
2018-12-05T16:44:20Z
2018-12-05T16:44:20Z
1997
Mechanical Engineering
doi:10.15781/T2B27QB6K
http://hdl.handle.net/2152/71396
eng
1997 International Solid Freeform Fabrication Symposium
Open
['stereolithography', 'Liquid crystal']
Novel Liquid Crystal Resins for Stereolithography: Mechanical and Physical Properties
Conference paper
https://repositories.lib.utexas.edu//bitstreams/e43de412-60d6-4b2e-bf58-a4a9a45d6616/download
null
This paper considers photocurable liquid crystal (LC) monomers which are a new class of stereolithography resins. These resins form polymers with high upper-use temperatures. The rodlike molecules can be aligned by an external force. When cured in an aligned state, the aligned structure is "locked in" resulting in mate...
null
null
null
null
null
null
['Erler, M.', 'Streek, A.', 'Schulze, C.', 'Exner, H.']
2021-10-12T19:52:33Z
2021-10-12T19:52:33Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88726', 'http://dx.doi.org/10.26153/tsw/15660']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['laser micro sintering', 'micro powder', '3D-measurement', 'in-situ']
Novel Machine and Measurement Concept for Micro Machining by Selective Laser Sintering
Conference paper
https://repositories.lib.utexas.edu//bitstreams/f37ae447-91a0-43d4-a417-ef553a653ed8/download
University of Texas at Austin
Laser sintering has been established in solid freeform fabrication to produce individual micro parts and small batches. However, the achievable resolution and accuracy of this technology seems to be not sufficient to meet prospective demands in micro production, i.e. micro system technology, aerospace or innovative med...
null
null
null
null
null
null
['Xie, Yang', 'Zhang, Haiou', 'Wang, Guilan', 'Zhou, Fei']
2021-10-12T21:28:00Z
2021-10-12T21:28:00Z
2014
Mechanical Engineering
null
['https://hdl.handle.net/2152/88744', 'http://dx.doi.org/10.26153/tsw/15678']
eng
2014 International Solid Freeform Fabrication Symposium
Open
['metamorphic rolling mechanism', 'variable wall thickness', 'arc based deposition', 'additive manufacturing', 'net shape components']
A Novel Metamorphic Mechanism for Efficient Additive Manufacturing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/196d5e8c-d94f-4353-973c-0d04ed9bede4/download
University of Texas at Austin
A novel metamorphic rolling mechanism (MRM) based on genetic evolution synthesis that realized multiway, multiple-DOF and synchronous plastic forming in arc based deposition processing of components with variable wall thickness is proposed in this paper. Topology and mechanical structure of the metamorphic mechanism is...
null
null
null
null
null
null
['Goel, Abhishek', 'Surana, Anupam', 'Choudhury, Asimava Roy']
2021-09-23T21:46:00Z
2021-09-23T21:46:00Z
9/10/08
Mechanical Engineering
null
['https://hdl.handle.net/2152/88029', 'http://dx.doi.org/10.26153/tsw/14970']
eng
2008 International Solid Freeform Fabrication Symposium
Open
['part decomposition', 'Hybrid Rapid Prototyping', 'undercut edges']
A Novel Method for Part Decomposition Based on Undercut Edges for Efficient Hybrid Rapid Prototyping
Conference paper
https://repositories.lib.utexas.edu//bitstreams/3f216e32-b810-4bf7-9665-8ed091965597/download
null
Layered Manufacturing allows physical prototypes of 3D parts to be built directly from their computer models, as a stack of 2D layers. This article proposes to decompose the model to be built into minimum number of layers and then build each layer separately by performing machining operations on a given sheet of met...
null
null
null
null
null
null
['Li, Jinghao', 'Luo, Zhibo', 'Guan, Xiaoyi', 'Zhou, Xianglin', 'Brochu, Mathieu', 'Zhao, Yaoyao Fiona']
2021-11-11T16:43:17Z
2021-11-11T16:43:17Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90243', 'http://dx.doi.org/10.26153/tsw/17164']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['microstructure simulation model', 'microstructure', 'invasion model', 'grain growth', 'direct energy deposition', 'DED']
A Novel Microstructure Simulation Model for Direct Energy Deposition Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c0ab1186-c1fa-4ecb-9d2e-ef82582913e3/download
University of Texas at Austin
The microstructure of additive manufacturing parts has unique characteristics. In this paper, a novel microstructure simulation model is proposed in grain level, called "Invasion Model", to simulate the transient competitive grain growth behaviour in direct energy deposition (DED) process. Different from the phase fiel...
null
null
null
null
null
null
['Pan, Yayue', 'Patil, Abhishek', 'Zhou, Chi']
2021-10-19T15:44:01Z
2021-10-19T15:44:01Z
2015
Mechanical Engineering
null
https://hdl.handle.net/2152/89304
eng
2014 International Solid Freeform Fabrication Symposium
Open
['multi-material printing', 'metal-polymer composite', 'additive manufacturing', 'electrophotography', 'stereolithography', 'vat photopolymerization']
A Novel Projection Based Electro-Stereolithography (PES) Process for Composite Printing
Conference paper
https://repositories.lib.utexas.edu//bitstreams/d0a01ca5-8a77-4cfd-b179-21682cd3c41f/download
University of Texas at Austin
Most current additive manufacturing processes can only process one material in one build. Few of them are able to fabricate multiple materials and composites, with limited choices of materials. In this research, we propose a novel Projection based Electro-Stereolithography (PES) process, which is able to fabricate comp...
null
null
null
null
null
null
['Biester, K.', 'Schwarz, N.', 'Hermsdorf, J.', 'Kaierle, S.']
2024-03-26T16:42:24Z
2024-03-26T16:42:24Z
2023
Mechanical Engineering
null
['https://hdl.handle.net/2152/124366', 'https://doi.org/10.26153/tsw/50974']
en_US
2023 International Solid Freeform Fabrication Symposium
Open
['LDNA', 'cladding', 'waviness', 'welding strategy', 'high deposition rate']
NOVEL WELDING STRATEGY IN HIGH DEPOSITION RATE LASER-ASSISTED DOUBLE-WIRE WELDING PROCESS WITH NONTRANSFERRED ARC
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4e32f634-0a8f-444d-a5bb-4c4251f28751/download
University of Texas at Austin
Laser-assisted double wire welding with nontransferred arc melts material using an arc between two conveyed wires. Driven by gravity the molten metal drops onto the substrate. A laser beam is oscillated on the melt pool to bond the weld beads to the substrate without undercuts. Claddings at high deposition rates (11.6 ...
null
null
null
null
null
null
['Liu, Heng', 'Sparks, Todd E.', 'Liou, Frank W.', 'Dietrich, David M.']
2021-10-11T21:29:06Z
2021-10-11T21:29:06Z
8/16/13
Mechanical Engineering
null
['https://hdl.handle.net/2152/88649', 'http://dx.doi.org/10.26153/tsw/15583']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['direct metal deposition', 'thermo-mechanical finite element model', 'finite element model', 'residual stress', 'deformation', 'deposition parameters']
Numerical Analysis of Thermal Stress and Deformation in Multi-Layer Laser Metal Deposition Processes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/b172e910-7708-4f7a-bb16-3ce46c3beed3/download
University of Texas at Austin
Direct metal deposition (DMD) has gained increasing attention in the area of rapid manufacturing and repairing. This process involves extremely high thermal gradients and heat and cooling rate, resulting in residual stresses and distortion. This paper presents a 3D sequentially coupled thermo-mechanical finite element ...
null
null
null
null
null
null
['Thakar, Yogesh', 'Pan, Heng', 'Liou, Frank']
2020-02-14T16:21:38Z
2020-02-14T16:21:38Z
8/4/04
Mechanical Engineering
null
['https://hdl.handle.net/2152/79992', 'http://dx.doi.org/10.26153/tsw/7017']
eng
2004 International Solid Freeform Fabrication Symposium
Open
Axial powder stream
Numerical and Experimental Analysis of the Powder Flow Streams in the Laser Aided Material Deposition Process
Conference paper
https://repositories.lib.utexas.edu//bitstreams/c57f489a-066f-4409-aa03-94a1a7aae86a/download
null
Axial powder stream concentration between the nozzle end and the deposition point is an important process parameter in the laser aided material deposition process. The powder concentration is greatly influenced by the nozzle geometry in use. This paper describes the numerical and experimental analysis of this important...
null
null
null
null
null
null
['du Plessis, Anton', 'Yadroitsava, Ina', 'Kouprianoff, Dean', 'Yadroitsev, Igor']
2021-11-09T20:28:43Z
2021-11-09T20:28:43Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90158', 'http://dx.doi.org/10.26153/tsw/17079']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['lattice structure', 'porosity', 'Ti6Al4V', 'laser based powder bed fusion', 'microCT']
Numerical and Experimental Study on the Effect of Artificial Porosity in a Lattice Structure Manufactured by Laser Based Powder Bed Fusion
Conference paper
https://repositories.lib.utexas.edu//bitstreams/57f1888f-9634-471d-a86c-06a461808236/download
University of Texas at Austin
Additively manufactured lattice structures are used in various applications due to their unique properties, especially low weight with relatively good strength and stiffness. While lattices have been investigated widely, the effect of manufacturing flaws on the lattice performance was not yet analyzed in detail. One im...
null
null
null
null
null
null
['He, Haiyang', 'Cheng, Bo', 'Schmidt, Kaja', 'Kruse, Claudia', 'Tuffile, Charles']
2021-11-18T17:24:30Z
2021-11-18T17:24:30Z
2019
Mechanical Engineering
null
['https://hdl.handle.net/2152/90436', 'http://dx.doi.org/10.26153/tsw/17357']
eng
2019 International Solid Freeform Fabrication Symposium
Open
['polymer dispensing', 'computational fluid dynamics', 'CFD', 'strand', 'process-quality map']
Numerical Investigation of Extrusion-Based Additive Manufacturing for Process Parameter Planning in a Polymer Dispensing System
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4b94a66b-65cc-4bb0-863d-7aecfff682e5/download
University of Texas at Austin
This paper establishes a computational fluid dynamics (CFD) model using ANSYS Fluent for the time-pressure polymer dispensing process. The developed model simulates the process of liquid being applied on a substrate and predicts critical performance indexes, such as strand width and height, of the dispensing system. A ...
null
null
null
null
null
null
['Li, Xuxiao', 'Tan, Wenda']
2021-10-26T18:23:19Z
2021-10-26T18:23:19Z
2016
Mechanical Engineering
null
https://hdl.handle.net/2152/89551
eng
2016 International Solid Freeform Fabrication Symposium
Open
['selective laser sintering', 'laser absorption', 'powder bed', 'ray tracing method']
Numerical Investigation of Laser Absorption by Metal Powder Bed in Selective Laser Sintering Processes
Conference paper
https://repositories.lib.utexas.edu//bitstreams/08982495-5c5f-49b8-80ee-0dfcbcfa1d54/download
University of Texas at Austin
Laser absorption by powder bed in selective laser sintering (SLS) processes remains a critical issue to be fully understood. This issue is important for the appropriate selection of processing parameters in practices as well as an accurate definition of the thermal input in numerical modeling. In this work, a ray traci...
null
null
null
null
null
null
['Sheth, Sanchita', 'Taylor, Robert M.']
2021-11-03T20:57:25Z
2021-11-03T20:57:25Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89932
eng
2017 International Solid Freeform Fabrication Symposium
Open
['stiffness', 'raster orientation', 'fused deposition modeling', 'numerical investigation']
Numerical Investigation of Stiffness Properties of FDM Parts as a Function of Raster Orientation
Conference paper
https://repositories.lib.utexas.edu//bitstreams/4dfff7ad-f97c-4274-b330-806521302439/download
University of Texas at Austin
This work discusses a numerical investigation of stiffness properties of parts printed using Fused Deposition Modeling (FDM). Small volumes of different raster orientations were modelled and meshed using SIMULIATM (Abaqus). These meshes were exported to a damage prediction software BSAM, which uses a homogenization app...
null
null
null
null
null
null
['Jamshidinia, M.', 'Kong, F.', 'Kovacevic, R.']
2021-10-11T22:48:35Z
2021-10-11T22:48:35Z
2013
Mechanical Engineering
null
['https://hdl.handle.net/2152/88674', 'http://dx.doi.org/10.26153/tsw/15608']
eng
2013 International Solid Freeform Fabrication Symposium
Open
['fatigue failure', 'surface roughness', 'fatigue strength factor', 'bio-compatible dental implant', 'Electron Beam Melting® (EBM)']
The Numerical Modeling of Fatigue Properties of a Bio-compatible Dental Implant Produced by Electron Beam Melting® (EBM)
Conference paper
https://repositories.lib.utexas.edu//bitstreams/2568c0bb-6d09-4d1d-b020-c399a3dc61b7/download
University of Texas at Austin
Cyclic load could result in the fatigue failure of a component at stress levels below the yielding stress of material. Therefore, studying the mechanical behaviors of a dental implant structure under cyclic load is required. The numerical modeling of a cyclic load test was performed for a bio-compatible dental implant ...
null
null
null
null
null
null
['Wu, Maxwell', 'Sammons, Patrick M.', 'Barton, Kira']
2021-11-03T21:24:53Z
2021-11-03T21:24:53Z
2017
Mechanical Engineering
null
https://hdl.handle.net/2152/89936
eng
2017 International Solid Freeform Fabrication Symposium
Open
['electrohydrodynamic jet printing', 'CFD', 'modeling']
Numerical Modeling of High Resolution Electrohydrodynamic Jet Printing Using OpenFOAM
Conference paper
https://repositories.lib.utexas.edu//bitstreams/7c95cb18-6483-495e-837c-4ee54c401e64/download
University of Texas at Austin
Electrohydrodynamic jet (e-jet) printing is a micro-/nano-scale additive manufacturing (AM) method that has emerged in recent years as a process to rival similar technologies such as inkjet printing. By utilizing electrostatic forces to induce fluid flow, e-jet has shown the ability to fabricate high resolution feature...
null
null
null
null
null
null
['Comminal, R.', 'Serdeczny, M.P.', 'Pederson, D.B.', 'Spangenberg, J.']
2021-11-15T20:51:13Z
2021-11-15T20:51:13Z
2018
Mechanical Engineering
null
['https://hdl.handle.net/2152/90267', 'http://dx.doi.org/10.26153/tsw/17188']
eng
2018 International Solid Freeform Fabrication Symposium
Open
['material deposition', 'contouring precision', 'fused deposition modeling', 'numerical model']
Numerical Modeling of the Material Deposition and Contouring Precision in Fused Deposition Modeling
Conference paper
https://repositories.lib.utexas.edu//bitstreams/a1b1c3e0-5b05-4a91-8ed9-9d94d32690a0/download
University of Texas at Austin
We present a numerical model of the material deposition in fused deposition modeling. The flow of the material extruded from the printing head nozzle is simulated within the computation fluid dynamics (CFD) paradigm. The molten thermoplastic is modeled as an incompressible Newtonian fluid with a free surface. The numer...
null
null
null
null
null
null