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['Lee, Insup', 'Manthiram, A.', 'Marcus, H.L'] | 2018-10-03T18:17:05Z | 2018-10-03T18:17:05Z | 1994 | Mechanical Engineering | doi:10.15781/T26970H2C | http://hdl.handle.net/2152/68668 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['optimum composite system', 'solid freeform fabrication', 'CAD'] | Selective Laser Sintering of Alumina-Boron Oxide Composites | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e9feabc5-da14-4bae-8bbf-4bec8c3176ca/download | null | The selection of an optimum composite system for selective laser sintering (SLS) is based on
materials properties such as the melting point and the wettability between the components in the
composite powder. The alumina-boron oxide composite system is attractive for SLS because the
presence of the low melting component... | null | null | null | null | null | null |
['Lee, Insup', 'Manthiram, A.', 'Marcus, H.L.'] | 2018-10-03T20:53:54Z | 2018-10-03T20:53:54Z | 1995 | Mechanical Engineering | doi:10.15781/T2GM82732 | http://hdl.handle.net/2152/68689 | eng | 1995 International Solid Freeform Fabrication Symposium | Open | ['SLS', 'alumina', 'x-ray diffraction'] | Selective Laser Sintering of Alumina-Zinc Borosilicate Glass Composites using Monoclinic HB02 as a Binder | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e61f83db-2f43-41a3-ae15-303451ba7297/download | null | Selective Laser Sintering (SLS) process has been employed to fabricate alumina-glass
composites using as an inorganic binder monoclinic HB02. Subsequent post-thermal processing
of green SLS parts at various temperatures yielded glass-ceramic composites. The crystalline
phases and microstructural evolution at each fIrin... | null | null | null | null | null | null |
['Manriquez-Frayre, J.A.', 'Bourell, D.L.'] | 2018-04-10T18:38:39Z | 2018-04-10T18:38:39Z | 1990 | Mechanical Engineering | doi:10.15781/T2B27Q79P | http://hdl.handle.net/2152/64245 | eng | 1990 International Solid Freeform Fabrication Symposium | Open | ['Center for Materials Science and Engineering', 'laser processing', 'energy dispersive spectroscopy'] | Selective Laser Sintering of Binary Metallic Powder | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a94e6660-f638-4fb0-91a9-6fd5375a0d29/download | null | A selective laser sintering technique has been used to process metal powders and
powder blends. Precursor powders include copper, tin, a 70Pb-30Sn solder and their blends.
Excessive balling due to surface free energy effects occurred in single layer tests when the
laser fluence was sufficient to cause melting of monoli... | null | null | null | null | null | null |
['Lorrison, J.C.', 'Goodridge, R.D.', 'Daigarno, K.W.', 'Wood, D.J.'] | 2019-10-22T17:23:44Z | 2019-10-22T17:23:44Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76320', 'http://dx.doi.org/10.26153/tsw/3409'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Sintering | Selective Laser Sintering of Bioactive Glass-Ceramics | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f706ae15-7e4e-4dbc-8305-31662761440a/download | null | An initial investigation was held into the feasibility of producing bone replacement
implants from a bioactive glass-ceramic using the Selective Laser Sintering (SLS) process. The
work presented considers both a direct and an indirect approach, where the material is sintered
with a polymer binder and subsequently post-... | null | null | null | null | null | null |
['Lee, Goonhee', 'Barlow, J.W.'] | 2018-05-03T20:05:32Z | 2018-05-03T20:05:32Z | 1993 | Mechanical Engineering | doi:10.15781/T26Q1T10X | http://hdl.handle.net/2152/65082 | eng | 1993 International Solid Freeform Fabrication Symposium | Open | ['Selective Laser Sintering', 'SLS', 'Department of Chemical Engineering'] | Selective Laser Sintering of Bioceramic Materials for Implants | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a7d9750a-4121-4be2-9f91-2b5643c5ca6a/download | null | Selective Laser Sintering (SLS) process is employed for fabrication of biocerarnics
for orthopedic implants. Hydroxyapatite and Calcium Phosphate ceramics are coated with
polymer as a intermediate binder by using a spray drier. Polymer coated materials are
SLS processed to make green parts, which are infiltrated and fi... | null | null | null | null | null | null |
['Lee, Gonhee', 'Barlow, J.W.'] | 2018-10-03T15:29:00Z | 2018-10-03T15:29:00Z | 1994 | Mechanical Engineering | doi:10.15781/T25D8P040 | http://hdl.handle.net/2152/68645 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['selective laser sintering', 'Polymeric Binder', 'Powder X-ray diffraction'] | Selective Laser Sintering of Calcium Phosphate Powders | Conference paper | https://repositories.lib.utexas.edu//bitstreams/47677941-00c0-4206-b379-bc9fe3079ea6/download | null | Since Dejong first observed the similarity between powder X - ray diffraction
pattern ofthe in vivo mineral and the hydroxyapatite (Cas(OH)(P04h ,HA) in 1926,
the calcium phosphate ceramics have received attention as a bone substitute material.
Five calcium phosphates which exhibit different X-ray diffraction patterns ... | null | null | null | null | null | null |
['Lakshminarayan, Uday', 'Ogrydiziak, Stan', 'Marcus, H.L.'] | 2018-04-10T16:30:03Z | 2018-04-10T16:30:03Z | 1990 | Mechanical Engineering | doi:10.15781/T2MG7GC58 | http://hdl.handle.net/2152/64235 | eng | 1990 International Solid Freeform Fabrication Symposium | Open | ['Center for Materials Science and Engineering', 'Department of Mechanical Engineering', 'Selective Layer Sintering', 'SLS'] | Selective Laser Sintering of Ceramic Materials | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ce95e944-890f-46ac-a6e4-59de3505f3fa/download | null | This paper will focus on efforts to develop the alumina - ammonium phosphate
material system for Solid Freeform Fabrication. When the powder mix is irradiated
with a laser beam, ammonium phosphate ( m.p. """ 190 0 C ) melts and forms a glassy
phase between the alumina grains. The "green part" obtained by laser processi... | null | null | null | null | null | null |
['Frayre-Manriquez, J.A.', 'Bourell, D.L.'] | 2018-04-17T18:21:12Z | 2018-04-17T18:21:12Z | 1991 | Mechanical Engineering | doi:10.15781/T2CF9JQ1W | http://hdl.handle.net/2152/64343 | eng | 1991 International Solid Freeform Fabrication Symposium | Open | ['Center for Materials Science and Engineering', 'SLS', 'Selective Layer Sintering', 'Polymer'] | Selective Laser Sintering of Cu-Pb/Sn Solder Powders | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e081bb9d-b0a9-45d5-bf97-1687967d1e97/download | null | Solid Freeform Fabrication (SFF) as an overall approach in the
manufacturing field has been applied to very different areas and on
different materials systems including polymers, ceramics, metals and
vapor phase. Even though it is clear that polymers have enjoyed a rapid
and successful advance in terms of applications,... | null | null | null | null | null | null |
['Neff, Clayton', 'Hopkinson, Neil', 'Crane, Nathan B.'] | 2021-10-21T16:57:33Z | 2021-10-21T16:57:33Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89405 | eng | 2015 International Solid Freeform Fabrication Symposium | Open | ['diamond lattice structures', 'selective laser sintering', 'elastic modulus'] | Selective Laser Sintering of Diamond Lattice Structures: Experimental Results and FEA Model Comparison | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c6234856-921d-4c72-8923-3a20fab99170/download | University of Texas at Austin | Nature utilizes multiple materials with varying properties to create high performance,
integrated systems. In contrast, most additive manufacturing processes are limited to a small set of
compatible materials to fabricate a device. However, the large geometric freedom of AM could
be used to create the effect of multipl... | null | null | null | null | null | null |
['Sriram, Vinay', 'Wood, Kristin', 'Bourell, David', 'Beaman, Joseph J.'] | 2019-11-21T18:37:37Z | 2019-11-21T18:37:37Z | 2003 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/78563', 'http://dx.doi.org/10.26153/tsw/5619'] | eng | 2003 International Solid Freeform Fabrication Symposium | Open | DuraForm | Selective Laser Sintering of DuraForm Polyamide with Small-Scale Features | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ceb2ceaa-0985-4e90-96e3-5bab44d5b19f/download | null | Selective Laser Sintering (SLS) has been used to make a fiber management module
having very small feature size and ratios. Currently these modules are made out of
Stereolithography using standard epoxy acrylate materials. SLS has been chosen to make
these modules by the virtue of the material system it offers. The mate... | null | null | null | null | null | null |
['Das, S.', 'Harlan, N.', 'Beaman, J. J.', 'Bourell, D. L.'] | 2018-11-09T15:21:58Z | 2018-11-09T15:21:58Z | 1996 | Mechanical Engineering | doi:10.15781/T2Q815C0Q | http://hdl.handle.net/2152/69925 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['HIP', 'SLS', 'encapsulate powder'] | Selective Laser Sintering of High Performance High Temperature Materials | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4a8d1699-d194-4681-8be0-fb0de494fca3/download | null | Hot Isostatic Pressing (HIP) of high performance metal parts is currently done using either a shaped
metal container or a pre-fabricated ceramic mold depending on the part material and geometry. An
alternative method of HIP encapsulation that allows complex part geometry, short cycle time and
minima) potential for cont... | null | null | null | null | null | null |
['Hostetler, John M.', 'Goldstein, Jonathan T.', 'Urbas, Augustine M.', 'Gutierrez, Rodrigo E.', 'Bender, Theresa E.', 'Wojnar, Charles S.', 'Kinzel, Edward C.'] | 2021-10-28T14:24:59Z | 2021-10-28T14:24:59Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89648 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['silica parts', 'thermal expansion', 'low density', 'low coefficient', 'selective laser sintering'] | Selective Laser Sintering of Low Density, Low Coefficient of Thermal Expansion Silica Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/b33959fa-e3b4-4b55-ad02-3df8c5094c56/download | University of Texas at Austin | This paper presents a study of selective laser sintering of silica-gel. The objective of this
work is to investigate a technique to create free-form, low to zero coefficient of thermal
expansion structures. This offers potential cost savings over the conventional casting of large
pieces of glass-ceramic followed by mac... | null | null | null | null | null | null |
['Hejmadi, Uday', 'McAlea, Kevin'] | 2018-11-09T15:35:21Z | 2018-11-09T15:35:21Z | 1996 | Mechanical Engineering | doi:10.15781/T2KH0FJ5G | http://hdl.handle.net/2152/69926 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['SLS process', 'CAD', 'RapidTool process'] | Selective Laser Sintering of Metal Molds: The Rapidtool Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/b60c6f61-b5b1-4d20-bf9e-e95b8c03ccba/download | null | Complex three dimensional parts can be manufactured directly from CAD data using rapid
prototyping processes. SLS® Selective Laser Sintering is a rapid prototyping process developed
at the University ofTexas at Austin and commercialized by DTM Corporation. SLS parts are
constructed layer by layer from powdered material... | null | null | null | null | null | null |
['Klatt, Timothy', 'Haberman, Michael', 'Conner Seepersad, Carolyn'] | 2021-10-12T18:56:05Z | 2021-10-12T18:56:05Z | 2013 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88719', 'http://dx.doi.org/10.26153/tsw/15653'] | eng | 2013 International Solid Freeform Fabrication Symposium | Open | ['bistable structures', 'mesostructures', 'honeycombs', 'selective laser sintering'] | Selective Laser Sintering of Negative Stiffness Mesostructures for Recoverable, Nearly-Ideal Shock Isolation | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e0f51767-358c-447a-94bb-06774051a85a/download | University of Texas at Austin | Honeycomb materials are well known for providing lightweight stiffness, strength, and
energy absorption capabilities. For most honeycomb materials, energy absorption occurs when
individual cells collapse progressively. Although it is possible for honeycombs with very low
relative density to collapse via elastic bucklin... | null | null | null | null | null | null |
['Schultz, Jeffrey P.', 'Martin, Julie P.', 'Kander, Ronald G.', 'Suchicital, Carlos T.A.'] | 2019-09-20T18:28:35Z | 2019-09-20T18:28:35Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75927', 'http://dx.doi.org/10.26153/tsw/3026'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Alloying | Selective Laser Sintering of Nylon 12-PEEK Blends Formed by Cryogenic Mechanical Alloying | Conference paper | https://repositories.lib.utexas.edu//bitstreams/532d12ec-ee5d-4f45-aedb-f14b358246cc/download | null | Cryogenic mechanical alloying (CMA) has been shown to be an effective means for producing composite powders with co-continuous phases throughout each particle. Consolidation of these composite particles via SLS presents the possibility of forming parts with a co-continuous microstructure. In this work the effects of mi... | null | null | null | null | null | null |
['Faustini, Mario C.', 'Neptune, Richard R.', 'Crawford, Richard H.', 'Stanhope, Steven J.'] | 2020-02-27T20:36:29Z | 2020-02-27T20:36:29Z | 2006 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80102', 'http://dx.doi.org/10.26153/tsw/7123'] | eng | 2006 International Solid Freeform Fabrication Symposium | Open | Passive dynamic ankle-foot orthoses | Selective Laser Sintering of Passive Dynamic Ankle-Foot Orthoses | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f17d54af-5b69-41fc-a227-514c3855aa69/download | null | Passive dynamic ankle-foot orthoses (AFO’s) are used to improve gait performance in
those with various neuromuscular disorders. An important design characteristic of passive
dynamic AFOs is the storage and release of elastic energy within its structure to help satisfy the
energetic demands of walking. Thus, minimizing ... | null | null | null | null | null | null |
['Childs, T.H.C.', 'Cardie, S.', 'Brown, J.M.'] | 2018-10-03T18:22:47Z | 2018-10-03T18:22:47Z | 1994 | Mechanical Engineering | doi:10.15781/T2XS5K244 | http://hdl.handle.net/2152/68670 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['sintering of polycarbonate', 'selective laser sintering', 'temperature distribution'] | Selective Laser Sintering of Polycarbonate at Varying Powers, Scan Speeds and Scan Spacings | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3487242d-8b34-41a1-8b34-24a12d726ee2/download | null | A benchmark study (1) has shown selective laser sintering to be the equal of or to
have accuracy advantages over other processes for creating parts of size over 10 mm.
Experience is needed to achieve best accuracies, as with other processes. This paper is
(for us) a first step in understanding the relation between sint... | null | null | null | null | null | null |
['Wahab, M. S.', 'Dalgarno, K. W.', 'Cochrane, R. F.'] | 2020-03-09T15:30:48Z | 2020-03-09T15:30:48Z | 8/21/07 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80200', 'http://dx.doi.org/10.26153/tsw/7219'] | eng | 2007 International Solid Freeform Fabrication Symposium | Open | polymer nanocomposite | Selective Laser Sintering of Polymer Nanocomposites | Conference paper | https://repositories.lib.utexas.edu//bitstreams/bde27445-6d43-477b-bf37-f9abb136fe67/download | null | This paper describes the fabrication and characterization of polymer nanocomposite (PNC)
materials for use in the selective laser sintering (SLS) process. PNC materials are of great
interest generally because of their excellent physical properties, and offer excellent potential
in rapid manufacturing of structural poly... | null | null | null | null | null | null |
['Wang, Hongyun', 'Bourell, David L', 'Beaman Jr., Joseph J.'] | 2018-12-05T20:37:14Z | 2018-12-05T20:37:14Z | 1997 | Mechanical Engineering | doi:10.15781/T2VT1H935 | http://hdl.handle.net/2152/71416 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['SLS', 'CAD'] | Selective Laser Sintering of Quartz Powder | Conference paper | https://repositories.lib.utexas.edu//bitstreams/db73e8e5-1412-4756-9cf6-fd9ae13bdd6f/download | null | This research describes the feasibility of fusing quartz powder by Selective Laser Sintering
(SLS). SLS is a method of rapid prototyping three-dimensional objects from a computer-aided
design database. The effects of different processing parameters, including powder size, laser
power and scan mte were explored. Single ... | null | null | null | null | null | null |
['Gill, Toby', 'Hon, Bernard'] | 2019-10-25T16:05:05Z | 2019-10-25T16:05:05Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/77441', 'http://dx.doi.org/10.26153/tsw/4530'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Laser Sintering | Selective Laser Sintering of SiC/Polyamide Matrix Composites | Conference paper | https://repositories.lib.utexas.edu//bitstreams/9db2ff3f-bcf2-425b-8171-b443ffe46305/download | null | This paper presents an experimental study into the production of particulate Silicon
Carbide/Duraform Polyamide matrix composites via the selective laser sintering (SLS) process.
FEPA standard SiC grits, F240 and F360, were each individually blended with the commercially
available Duraform Polyamide, to produce blend c... | The authors would like to acknowledge the financial support from the EPSRC and the
technical support and assistance of the PIDC. | null | null | null | null | null |
['Hauser, C.', 'Childs, T.H.C.', 'Dalgamo, K.W.'] | 2019-03-12T17:55:45Z | 2019-03-12T17:55:45Z | 1999 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73606', 'http://dx.doi.org/10.26153/tsw/748'] | eng | 1999 International Solid Freeform Fabrication Symposium | Open | ['Rapid prototyping', 'Selective laser sintering'] | Selective Laser Sintering of Stainless Steel 314S HC Processed Using Room Temperature Powder Beds | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d5b54c32-7bb3-4eed-b890-8e7b570e27d7/download | null | Metal powder bed pre-heating is a proposed route for the homogenisation of
temperature gradients that can otherwise cause individual layer warping and cracking in direct
metal Selective Laser Sintering (SLS). However, the high temperatures involved complicate a
relatively simple process. This paper reports on the condi... | null | null | null | null | null | null |
['Harlan, Nicole', 'Park, Seok-Min', 'Bourell, David L.', 'Beaman, Joseph J.'] | 2019-03-12T20:46:42Z | 2019-03-12T20:46:42Z | 1999 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73609', 'http://dx.doi.org/10.26153/tsw/751'] | eng | 1999 International Solid Freeform Fabrication Symposium | Open | ['SLS', 'tetragonal'] | Selective Laser Sintering of Zirconia with Micro-Scale Features | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a2b10c56-09f5-413e-a26a-5311a95ce2a4/download | null | Recent work in Selective Laser Sintering of ceramics at the University of Texas at Austin demonstrates
the capability to produce zirconia parts with fine features. Zirconia powder was pre-processed into
spherical particles, laser sintered with a sacrificial polymer binder, infiltrated and post-sintered to higher
densit... | null | null | null | null | null | null |
['Klocke, F.', 'Wirtz, H.'] | 2019-02-26T20:58:40Z | 2019-02-26T20:58:40Z | 1998 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73502', 'http://dx.doi.org/10.26153/tsw/652'] | eng | 1998 International Solid Freeform Fabrication Symposium | Open | ['Investment Casting', 'Selective Laser Sintering'] | Selective Laser Sintering of Zirconium Silicate | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fb7dc01e-5ce3-467e-bb5d-9c9bb074ffde/download | null | The Fraunhofer Institute of Production Technology (IPT) and the Fraunhofer Institute of
Laser Technology (ILT) have joined forces in a project dedicated to Selective Laser Sintering
(SLS) ofmetals and ceramics, funded by the German Government and 6 industrial partners.
Selective Laser Sintering of zirconium silicate as... | null | null | null | null | null | null |
['Williams, John', 'Miller, David', 'Deckard, Carl'] | 2018-11-16T15:47:32Z | 2018-11-16T15:47:32Z | 1996 | Mechanical Engineering | doi:10.15781/T2T43JN9H | http://hdl.handle.net/2152/70290 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['selective laser sintering', 'radiation', 'thermal gradients'] | Selective Laser Sintering Part Strength as a Function of Andrew Number, Scan Rate and Spot Size | Conference paper | https://repositories.lib.utexas.edu//bitstreams/9a2f3611-67e0-42c7-bbb3-f869af44f4d4/download | null | Selective Laser Sintering has been modeled analytically and numerically, and
studied experimentally. Further investigation is necessary to couple the results of
modeling with experimental data. At Clemson University, numerical modeling of
heat transfer phenomena is used to predict temperatures within the powder layer
a... | null | null | null | null | null | null |
['Cottle, Rand D.', 'Birmingham, Britton', 'Eliezer, Zwy', 'Marcus, Harris L.'] | 2018-11-08T15:07:43Z | 2018-11-08T15:07:43Z | 1995 | Mechanical Engineering | doi:10.15781/T2GT5G157 | http://hdl.handle.net/2152/69883 | eng | 1995 International Solid Freeform Fabrication Symposium | Open | ['SLS', 'nanostructuring', 'powder reprocessing'] | Selective Laser Sintering Preparation and Tribological Testing of Nanostructured Tungsten Carbide-Cobalt Composites | Conference paper | https://repositories.lib.utexas.edu//bitstreams/b1c494f2-22bb-4555-b9e8-2880799a67c8/download | null | This paper describes the results to date ofresearch done to compare and contrast the
tribological properties ofnanostructured tungsten carbide-cobalt composites consolidated by
selective laser sintering (SLS) and conventional grain size composites ofthe same chemical
composition consolidated by conventional commercial ... | null | null | null | null | null | null |
['Shi, Dongping', 'Gibson, Ian'] | 2019-03-11T16:31:43Z | 2019-03-11T16:31:43Z | 1999 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73579', 'http://dx.doi.org/10.26153/tsw/721'] | eng | 1999 International Solid Freeform Fabrication Symposium | Open | ['Rapid Prototyping', 'Selective Laser Sintering'] | Selective Laser Sintering Process Management Using a Relational Database | Conference paper | https://repositories.lib.utexas.edu//bitstreams/915a2f6d-dca5-4334-8ccb-fb794ee842c5/download | null | With more and more materials used in the Selective Laser Sintering (SLS) process, it is
becoming necessary to use a database to manage the process efficiently. In this paper, a
relational database for the SLS process is described. The database includes powdered material
data, sintering parameters, machine characteristi... | null | null | null | null | null | null |
['Weiss, Wendy', 'Bourell, D.L.'] | 2018-04-17T18:40:33Z | 2018-04-17T18:40:33Z | 1991 | Mechanical Engineering | doi:10.15781/T2G737M79 | http://hdl.handle.net/2152/64350 | eng | 1991 International Solid Freeform Fabrication Symposium | Open | ['Center for Materials Science and Engineering', 'intermetallic', 'metallographic techniques', 'x-ray powder'] | Selective Laser Sintering to Produce NI-SN Intermetallics | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ef4f9387-f6cf-4f92-98b2-0ff04e053922/download | null | A model system has been employed to investigate .the use of selective laser sintering (SLS) with
a post-processing step to produce a compound having different properties than the precursor
powders. The powder mixture examined consisted of95% (59% Ni and 41%8n) plus 5% ZnC12.
This weight fraction of nickel and. tin prod... | null | null | null | null | null | null |
['Khoshnevis, Behrokh', 'Gao, Xiang', 'Barbara, Brittany', 'Nouri, Hadis'] | 2021-11-04T15:30:09Z | 2021-11-04T15:30:09Z | 2017 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/89986', 'http://dx.doi.org/10.26153/tsw/16907'] | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['selective separation shaping', 'additive manufacturing', 'cementitious', 'composite'] | Selective Separation Shaping (SSS) – Large-Scale Fabrication Potentials | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a2cfbfca-d7f5-4ef0-ae4a-1fe5fc7f21dc/download | University of Texas at Austin | Selective Separating Shaping is a new additive manufacturing technique which is
capable of processing polymeric, metallic, ceramic and composites including cementitious
materials. In earlier experiments the capabilities of SSS in making metallic and ceramic
parts have been demonstrated. The focus of the research report... | null | null | null | null | null | null |
['Nouri, H.', 'Khoshnevis, B.'] | 2021-11-04T15:26:46Z | 2021-11-04T15:26:46Z | 2017 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/89985', 'http://dx.doi.org/10.26153/tsw/16906'] | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['selective separation shaping', 'polymeric parts', 'nylon', '3D printing'] | Selective Separation Shaping of Polymeric Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/6d5728ab-b926-4b27-b3c4-aff124eede74/download | University of Texas at Austin | Additive manufacturing (AM), or 3D printing has enjoyed a recent surge of attention over the past decade.
AM is a process in which digital 3D design data is used as input to build physical objects by combining
sequence layers of material. By increasing demand in use of additive manufacturing for fabrication of end-user... | null | null | null | null | null | null |
['Zhang, Jing', 'Khoshnevis, Behrokh'] | 2021-10-19T17:52:08Z | 2021-10-19T17:52:08Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89309 | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['Selective Separation Sintering', 'Additive Manufacturing', 'ceramics', 'metal'] | Selective Separation Sintering (SSS) A New Layer Based Additive Manufacturing Approach for Metals and Ceramics | Conference paper | https://repositories.lib.utexas.edu//bitstreams/11e1d9dd-64b8-485b-8bd1-26dfcc130b88/download | University of Texas at Austin | Selective Separation Sintering (SSS) is a powder layer based Additive Manufacturing
approach. SSS can fabricate high temperature ceramic and metallic parts at comparatively
lower cost with high quality. In the printing process a dry powder of higher sintering temperature
is deposited into the base material which makes ... | null | null | null | null | null | null |
['Khoshnevis, Behrokh', 'Zhang, Jing'] | 2021-10-28T20:44:54Z | 2021-10-28T20:44:54Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89696 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['selective separation sintering', 'SSS', 'sintering', 'powder deposition', 'additive manufacturing'] | Selective Separation Sintering for Metallic Part Fabrication | Conference paper | https://repositories.lib.utexas.edu//bitstreams/5c5887cd-765b-484d-8a1d-563202856090/download | University of Texas at Austin | Selective Separation Sintering (SSS) is a powder layer based additive manufacturing
approach. In the printing process a dry powder of higher sintering temperature is deposited into
the base material which makes up the part. The inserted powder defines the boundary of the
part and separates the part from its surrounding... | null | null | null | null | null | null |
['Bournias-Varotsis, A.', 'Friel, R.J.', 'Harris, R.A.', 'Engstrom, D.'] | 2021-11-01T21:59:46Z | 2021-11-01T21:59:46Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89771 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['aluminum foils', 'insulating layer', 'embedded electronic circuits', 'electronic circuits', 'anodic aluminum oxide', 'ultrasonic additive manufacturing'] | Selectively Anodised Aluminum Foils as an Insulating Layer for Embedding Electronic Circuitry in a Metal Matrix via Ultrasonic Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/376e25f9-8bfe-4fd2-b2fc-9e0201334c25/download | University of Texas at Austin | Ultrasonic Additive Manufacturing (UAM) is a hybrid Additive Manufacturing (AM)
process that involves layer-by-layer ultrasonic welding of metal foils and periodic machining to
achieve the desired shape. Prior investigative research has demonstrated the potential of UAM for
the embedding of electronic circuits inside a... | null | null | null | null | null | null |
['Crane, N.B.', 'Tuckerman, J.', 'Nielson, G.N.'] | 2021-09-30T20:25:31Z | 2021-09-30T20:25:31Z | 9/23/10 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88296', 'http://dx.doi.org/10.26153/tsw/15237'] | eng | 2010 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', 'biological growth', 'performance benefits', 'performance challenges', 'self-assembly errors', 'miniature thermoelectric devices', 'microscale photovoltaic cells'] | Self Assembly as an Additive Manufacturing Process: Opportunities and Obstacles | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f41f01b8-ea68-4f27-87b7-8cc83650f350/download | University of Texas at Austin | While additive manufacturing processes typically integrate functionally identical building
blocks, biological growth depends on the precise assembly of molecular building blocks to
achieve the remarkable functionality observed in living systems. This paper considers potential
performance benefits and challenges of prod... | null | null | null | null | null | null |
['Nassar, A.R.', 'Spurgeon, T.J.', 'Reutzel, E.W.'] | 2021-10-12T21:51:09Z | 2021-10-12T21:51:09Z | 2014 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88750', 'http://dx.doi.org/10.26153/tsw/15684'] | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['defect detection', 'directed-energy additive manufacturing', 'additive manufacturing', 'metals', 'optical emission spectroscopy'] | Sensing Defects during Directed-Energy Additive Manufacturing of Metal Parts using Optical Emissions Spectroscopy | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e487fbdf-212a-42c5-993f-bd58edc0a857/download | University of Texas at Austin | Critical components produced via additive manufacturing must be free of unwanted defects.
While defects may be detectable after deposition using nondestructive testing techniques,
detecting defects during the deposition process offers many benefits: it may enable users to
interrupt deposition to repair the part, or to ... | null | null | null | null | null | null |
['Fan, Zhiqiang', 'Phatak, Kaushik', 'Liou, Frank'] | 2020-02-21T16:04:29Z | 2020-02-21T16:04:29Z | 8/30/05 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80065', 'http://dx.doi.org/10.26153/tsw/7087'] | eng | 2005 International Solid Freeform Fabrication Symposium | Open | Laser Metal Deposition | Sensitivity Analysis of Process Parameters in Laser Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ea8beb7e-d6df-49e0-82a2-36fd784c2b77/download | null | In laser cladding with powder injection process, process output parameters, including
melt pool temperature and melt pool dimensions, are critical for part quality. This paper uses
simulation and experiments to investigate the effect of the process input parameters: laser power,
powder mass flow rate, and scanning spee... | null | null | null | null | null | null |
['Vasudevarao, Bharath', 'Natarajan, Dharma Prakash', 'Henderson, Mark', 'Razdan, Anshuman'] | 2019-09-23T15:55:41Z | 2019-09-23T15:55:41Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75946', 'http://dx.doi.org/10.26153/tsw/3045'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Parameter | Sensitivity of RP Surface Finish to Process Parameter Variation 251 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d1a23107-9fba-4ba0-8e8c-7a9156e975cc/download | null | In the rapid prototyping process, surface finish is critical as it can affect the part accuracy, reduce the post processing costs and improve the functionality of the parts. This paper presents an experimental design technique for determining the optimal surface finish of a part built by the Fused Deposition Modeling (... | null | null | null | null | null | null |
['Liravi, Farzad', 'Das, Sonjoy', 'Zhou, Chi'] | 2021-10-19T15:36:53Z | 2021-10-19T15:36:53Z | 2014 | Mechanical Engineering | null | https://hdl.handle.net/2152/89302 | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['bottom-up stereolithography', 'bottom-up additive manufacturing', 'finite element analysis', 'separation force', 'cohesive delamination', 'optimization'] | Separation Force Analysis Based on Cohesive Delamination Model for Bottom-Up Stereolithography Using Finite Element Analysis | Conference paper | https://repositories.lib.utexas.edu//bitstreams/65027874-7aaf-48f6-bc28-9b61f146b12b/download | University of Texas at Austin | Bottom-up (constrain-surface) Additive Manufacturing (AM) systems have been widely used in
industry. Compared to traditional open-surface AM technology, properties like better vertical resolution, higher
material filling rate, less production time, and less material waste make bottom-up AM technology a suitable
candida... | null | null | null | null | null | null |
['Ljungblad, U.', 'Hultman, A.'] | 2021-09-30T13:40:06Z | 2021-09-30T13:40:06Z | 2010 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88246', 'http://dx.doi.org/10.26153/tsw/15187'] | eng | 2010 International Solid Freeform Fabrication Symposium | Open | ['Electron Beam Melting', 'orthopedic implants', 'statistical process control'] | Serial Production with EBM | Conference paper | https://repositories.lib.utexas.edu//bitstreams/6c0233d8-e8d8-4ef6-9199-7a6dc2248fb6/download | University of Texas at Austin | null | null | Moving from prototyping to production is a major challenge for the additive
manufacturing industry. It requires a robust and reliable technology having high and
verifiable repeatability. The transition into production is not possible without the
technology being capable of sustaining a high product quality as well as p... | null | null | null | null |
['Manzur, Tariq', 'Roychoudhuri, Chandra', 'Marcus, Harris'] | 2018-11-14T19:49:11Z | 2018-11-14T19:49:11Z | 1996 | Mechanical Engineering | doi:10.15781/T21V5C03W | http://hdl.handle.net/2152/70258 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['CAD/CAM', 'SLS', 'SFF'] | SFF Using Diode Lasers | Conference paper | https://repositories.lib.utexas.edu//bitstreams/28b8533e-977f-419a-b34d-8c1c12a9841f/download | null | Rapid prototypings using direct selective laser sintering (SLS) ofmetal/ceramic powders
have a great potential for design and fabrication of near net shape ofmetal/ceramic parts.
At presents CO2, Nd:YAG and Excimer are the only possible solutions for the heavy duty
manufacturing applications. At the University ofConnec... | null | null | null | null | null | null |
['Xu, Anping', 'Shaw, Leon L.'] | 2020-02-17T14:19:56Z | 2020-02-17T14:19:56Z | 2004 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/79995', 'http://dx.doi.org/10.26153/tsw/7020'] | eng | 2004 International Solid Freeform Fabrication Symposium | Open | ['functionally graded materials', 'Equal distance offset', 'Solid freeform fabrication'] | SFF-Oriented Modeling and Process Planning of Functionally Graded Materials Using a Novel Equal Distance Offset Approach | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d293c4f7-1d4b-4a1e-9562-0a4339a57a01/download | null | This paper deals with the modeling and process planning of solid freeform fabrication
(SFF) of 3D functionally graded materials (FGMs). A novel approach of representation and
process planning of FGMs, termed as equal distance offset (EDO), is developed. In EDO, a
neutral arbitrary 3D CAD model is adaptively sliced into... | null | null | null | null | null | null |
['Bernitsas, Michael M.', 'Suryatama, Danet', 'Byungsik, Kang', 'Dale, G. Karr'] | 2018-10-03T15:59:04Z | 2018-10-03T15:59:04Z | 1994 | Mechanical Engineering | doi:10.15781/T2R78676V | http://hdl.handle.net/2152/68656 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['LEAP Theory', 'selective laser sintering', 'Solid free-form fabrication'] | Shape and Topology Structural Redesign by Large Perturbations | Conference paper | https://repositories.lib.utexas.edu//bitstreams/19cd8728-dc10-4270-a38f-4728e445b56d/download | null | The ultimate goal in concurrent engineering of structures is to achieve simultaneously in the
design stage the following objectives: (1) A shape that performs itsfunction, conforms with the
boundary conditions,and can support the external loads. (2) A product with structural integrity,
i.e. with stress levels remaining... | null | null | null | null | null | null |
['Merz, R.', 'Prinz, F.B.', 'Ramaswami, K.', 'Terk, M.', 'Weiss, L.E.'] | 2018-09-26T15:47:56Z | 2018-09-26T15:47:56Z | 1994 | Mechanical Engineering | doi:10.15781/T2BK1781C | http://hdl.handle.net/2152/68579 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['Department of Mechanical Engineering', 'CAD/CAM', 'SFF', 'Shape Deposition'] | Shape Deposition Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8ddbfacb-0827-4a15-9fe6-3a149ff24c7e/download | null | One challenge for solid freeform fabrication has been to develop the capability to directly
create functional metal shapes which are dense, metallurgically bonded, geometrically accurate
and with good surface appearance. Shape Deposition is a manufacturing paradigm which attempts
to address these issues. It incorporate... | null | null | null | null | null | null |
['Weiss, L.', 'Prinz, F.', 'Neplotnik, G.', 'Padmanabhan, K.', 'Schultz, L.', 'Merz, R.'] | 2018-11-08T19:39:06Z | 2018-11-08T19:39:06Z | 1996 | Mechanical Engineering | doi:10.15781/T2MG7GF74 | http://hdl.handle.net/2152/69916 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['SDM', 'SFF', 'manufacturing process'] | Shape Deposition Manufacturing of Wearable Computers | Conference paper | https://repositories.lib.utexas.edu//bitstreams/85ac1852-f05c-402c-9911-5f9ff302b0a1/download | null | Shape Deposition Manufacturing (SDM) is a solid freefrom fabrication methodology which
can fabricate heterogeneous structures, i.e., multi-material structures with embedded components.
One application is to build-up electromechanical devices such as conformally shaped computer
packages with embedded electronics. The go... | null | null | null | null | null | null |
['Zhou, Wenchao', 'Loney, Drew', 'Fedorov, Andrei G.', 'Degertekin, F. Levent', 'Rosen, David W.'] | 2021-10-04T21:44:23Z | 2021-10-04T21:44:23Z | 8/17/11 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88358', 'http://dx.doi.org/10.26153/tsw/15297'] | eng | 2011 International Solid Freeform Fabrication Symposium | Open | ['ink-jet printing', 'droplet deposition', 'droplet impact'] | Shape Evolution of Droplet Impingement Dynamics in Ink-Jet Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/1346c739-c744-46a4-90c9-d9e0aece91b4/download | University of Texas at Austin | Ink-jet printing enables more efficient, economic, scalable manufacturing for a wide variety of materials
than other traditional additive techniques. The impact of droplets onto a substrate is critical for accuracy control
and optimization of the droplet deposition process. However, most previous research about droplet... | null | null | null | null | null | null |
['Utela, B.', 'Anderson, R.', 'Kuhn, H.', 'Ganter, M.'] | 2020-03-09T15:14:25Z | 2020-03-09T15:14:25Z | 8/21/07 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80194', 'http://dx.doi.org/10.26153/tsw/7213'] | eng | 2007 International Solid Freeform Fabrication Symposium | Open | Three Dimensional Printing | Shape Training of Nitinol Wire Using Three-Dimensional (3DP) Fixtures | Conference paper | https://repositories.lib.utexas.edu//bitstreams/401afcbd-4a4f-4ae5-ab95-86c439242682/download | null | The presented research focuses on work done at the University of Washington on
process development for the training of nitinol shape memory alloy wire using Three
Dimensional Printing (3DP). Fixtures are created using the commercial stainless steel
printing system produced by Ex One. Superelastic nitinol wire is set by... | null | null | null | null | null | null |
['Yang, Li', 'Harrysson, Ola', 'West, Harvey', 'Cormier, Dennis'] | 2021-10-21T19:14:10Z | 2021-10-21T19:14:10Z | 2015 | Mechanical Engineering | null | https://hdl.handle.net/2152/89426 | eng | 2015 International Solid Freeform Fabrication Symposium | Open | ['auxetic structure', 're-entrants', 'shear properties', 'electron beam melting'] | Shear Properties of the Re-Entrant Auxetic Structure Made via Electron Beam Melting | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ae906d6b-cffe-4744-bf25-af438bcb82be/download | University of Texas at Austin | While the tensile/compressive mechanical properties of the re-entrant auxetic cellular structure
have been relatively well modeled, their shear properties including the shear modulus and shear
strength have not been investigated. This paper focuses on the analytical modeling of the shear
properties of this auxetic stru... | null | null | null | null | null | null |
Steinchen, W. | 2018-11-02T16:53:55Z | 2018-11-02T16:53:55Z | 1995 | Mechanical Engineering | doi:10.15781/T2891294T | http://hdl.handle.net/2152/69340 | eng | 1995 International Solid Freeform Fabrication Symposium | Open | ['strain analysis', 'vibration isolation', 'optimization'] | Sheareography - a Practical Optical Testing and Measuring Method | Conference paper | https://repositories.lib.utexas.edu//bitstreams/27b4222f-ea28-4dc0-995e-6aa491a4f66c/download | null | Shearography is a laser optical method which is suited for either nondestructive testing or for
strain analysis. Contrary to holography which measures surfach displacements, shearography
measures derivatives of surface displacements. Since strains are functions of displacement
derivatives, shearography allows strains t... | null | null | null | null | null | null |
['Kletetzka, I.', 'Klippstein, H.', 'Sural, I.', 'Schmid, H.-J.'] | 2023-03-29T16:16:58Z | 2023-03-29T16:16:58Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117676', 'http://dx.doi.org/10.26153/tsw/44555'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | laser sintering | Shelf Life of Polyamide 12 (PA2200) Laser Sintering Powder | Conference paper | https://repositories.lib.utexas.edu//bitstreams/0240d80f-fdb1-403d-8551-46ba427136d1/download | null | It is a very well-known fact that polyamide powders age during processing in laser
sintering. Therefore, the recycling rate of used powder is typically limited to around 50 % and it
has to be mixed with new, virgin powder, before the next build job can be started. The aging of the
polymer powder between its producti... | null | null | null | null | null | null |
['Yao, W. L.', 'Leu, Ming C.'] | 2019-02-25T17:45:13Z | 2019-02-25T17:45:13Z | 1998 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73477', 'http://dx.doi.org/10.26153/tsw/627'] | eng | 1998 International Solid Freeform Fabrication Symposium | Open | ['Rapid Prototyping', 'Investment Casting'] | Shell Cracking In Investment Casting with Laser Stereolithography Patterns | Conference paper | https://repositories.lib.utexas.edu//bitstreams/38b318eb-09a7-4930-b162-482f82a5ceef/download | null | This paper presents an investigation of ceramic shell cracking during the burnout process
in investment casting with internally webbed laser stereolithography patterns. We hypothesize
that shell cracking will occur when the rupture temperature of the ceramic shell is lower than
both the glass transition temperature of ... | null | null | null | null | null | null |
['Dilip, J.J.S.', 'Anam, Md Ashabul', 'Pal, Deepankar', 'Stucker, Brent'] | 2021-10-28T21:11:22Z | 2021-10-28T21:11:22Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89702 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['additive manufacturing', 'selective laser melting', 'alloy IN625', 'single track deposits'] | A Short Study on the Fabrication of Single Track Deposits in SLM and Characterization | Conference paper | https://repositories.lib.utexas.edu//bitstreams/66e18862-6618-4434-b47e-ea737d9fb564/download | University of Texas at Austin | The present investigation is focused on fabrication of single track deposits, with multiple laser
power and scan speed combinations to turn understanding their effect on the formation of the
melt pool. In this study alloy, IN625 powder from EOS was used to produce single track
deposits. Surface morphology and dimension... | null | null | null | null | null | null |
['McIntosh, Joseph J.', 'Danforth, Stephen C.', 'Jamalabad, Vikram R.'] | 2018-11-29T20:20:48Z | 2018-11-29T20:20:48Z | 1997 | Mechanical Engineering | doi:10.15781/T2513VG0Q | http://hdl.handle.net/2152/70338 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['CAD', 'SLS'] | Shrinkage and Deformation in Components Manufactured by Fused Deposition of Ceramics | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8ccc53e8-a835-4750-9431-5a35f3953900/download | null | Fused Deposition of Ceramics (FDC) presents a new processing technique that may contribute
to anisotropic shrinkage and deformation, which are critical issues in the manufacture of
ceramic components. The aim ofthis study is to identify and quantify key FDC parameters and
their influence on shrinkage and deformation. T... | null | null | null | null | null | null |
['Bhargava, P.', 'Bandyopadhyay, A.', 'Rangarajan, S.', 'Qi, G.', 'Dai, C.', 'Wu, S.', 'Danforth, S.', 'Safari, A.'] | 2018-12-05T19:53:23Z | 2018-12-05T19:53:23Z | 1997 | Mechanical Engineering | doi:10.15781/T2WS8J63V | http://hdl.handle.net/2152/71407 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['FDC', 'heating schedule'] | Shrinkage, Weight Loss and Crack Prevention During Binder Burn Out of Components Produced" by Fused Deposition of Ceramics (FDC) | Conference paper | https://repositories.lib.utexas.edu//bitstreams/483638ce-bfc2-44a1-9110-444bbb302e94/download | null | In the present study the sequential stages ofthe previously established binder bum out (BBO)
route were characterized by obtaining precise shrinkage and weight loss measurements from
interrupted runs. A DoE (Design of Experiments) approach was adopted to systematically
investigate the effect of process variables; such ... | null | null | null | null | null | null |
['Stierlen, Peter', 'Schanz, Peter', 'Eyerer, Peter'] | 2019-02-26T20:39:02Z | 2019-02-26T20:39:02Z | 1998 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73499', 'http://dx.doi.org/10.26153/tsw/649'] | eng | 1998 International Solid Freeform Fabrication Symposium | Open | ['high density ceramic structure', 'carbon binding structure'] | Si/SiC-Ceramic low process shrinkage - high temperature material for the Laser Sinter process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f8a8b6ba-df71-46ea-96e1-5bc6ad0c4a9c/download | null | Actual RP-systemsare very limited in producing adequate ceramic prototypes. In the
presented process, the SiC..green part manufacturing bythe laser sintering process in combination
with special postprocessing allows the fast production of SUSiC prototypes. A mixture of SiC
powder and a reactive polymer binder system is... | null | null | null | null | null | null |
['Stierlen, Peter', 'Eyerer, Peter'] | 2019-03-12T20:01:05Z | 2019-03-12T20:01:05Z | 1998 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73608', 'http://dx.doi.org/10.26153/tsw/750'] | eng | 1999 International Solid Freeform Fabrication Symposium | Open | ['precursor·resin', 'silicon'] | Si/SiC-Ceramic Prototypes via LS2I-Process (Liquid Silicon Infiltration of Laser Sintered C-SiC Parts) | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c4061c09-873d-4fd5-9b93-2d9d02d66fa5/download | null | The liquid silicon infiltration of laser sinteredC-~iC parts (LS2
I) is solidfreeform
fabrication technique which allows the production of complexshapedSi/SiC prototypes. A
mixture of SiC powder and reactive polymer binder isused in the las~r sinteringprocessto
generate a porous green part. In the\postprocessing, the p... | null | null | null | null | null | null |
['Melvin III, Lawrence S.', 'Beaman Jr., Joseph J.'] | 2018-11-08T15:39:49Z | 2018-11-08T15:39:49Z | 1995 | Mechanical Engineering | doi:10.15781/T2FX74H89 | http://hdl.handle.net/2152/69891 | eng | 1995 International Solid Freeform Fabrication Symposium | Open | ['powder application', 'bed density experiment', 'sieve feed system'] | A Sieve Feed System for the Selective Laser Sintering Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/303042ca-d234-414d-aeab-1d1d1438758e/download | null | A sieve feed system has been designed for use with the Selective
Laser Sintering process. The sieve feed system uses
electrostatic charge to help apply polymer powder to a green
powder bed. The sieve feed system was found to help the
application of polymer powder as measured by a 10 to 15%
increase in final part densit... | null | null | null | null | null | null |
['Taft, Douglas', 'Ogale, Amod', 'Paul, Frank', 'Hunt, Elaine', 'Ahzi, Said'] | 2018-12-05T17:11:39Z | 2018-12-05T17:11:39Z | 1997 | Mechanical Engineering | doi:10.15781/T2XS5K333 | http://hdl.handle.net/2152/71399 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['StereoLithography', 'solid models'] | Silica Filled Resins for Rapid SLA Tools | Conference paper | https://repositories.lib.utexas.edu//bitstreams/507d2a5d-7432-4538-905c-1d2adb898d06/download | null | A stable silica /SL epoxy resin suspension has been developed at Clemson
University. It has been processed to make parts in a commercial StereoLithography
Apparatus (SLA). Results oftesting show that the composite material has a higher
modulus and increased abrasion resistance over the neat epoxy resin. An injection
mo... | null | null | null | null | null | null |
['Mi, Jian', 'Gillespie, Josh', 'Johnson, Ryan W.', 'Bondi, Scott N.', 'Lackey, W. Jack'] | 2019-11-21T18:22:08Z | 2019-11-21T18:22:08Z | 2003 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/78556', 'http://dx.doi.org/10.26153/tsw/5612'] | eng | 2003 International Solid Freeform Fabrication Symposium | Open | Silicon Carbide | Silicon Carbide Growth Using Laser Chemical Vapor Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fb3821c8-ce1f-48bc-b2cc-b8e38d00f41a/download | null | Silicon Carbide (SiC) has been grown from methyltrichlorosilane (MTS) and
hydrogen using the Georgia Tech Laser Chemical Vapor Deposition (LCVD) system. A
morphology study of LCVD-SiC fibers and lines was completed. Graphite and single
crystal silicon were used as the substrates. In order to provide guidance to future ... | null | null | null | null | null | null |
['Vail, N.K.', 'Barlow, J.W.', 'Marcus, H.L.'] | 2018-05-03T19:06:51Z | 2018-05-03T19:06:51Z | 1993 | Mechanical Engineering | doi:10.15781/T25X25W7S | http://hdl.handle.net/2152/65059 | eng | 1993 International Solid Freeform Fabrication Symposium | Open | ['Selective Laser Sintering', 'SLS', 'Department of Chemical Engineering', 'Center for Materials Science and Engineering', 'Silicon Carbide', 'Encapsulation', 'Polymer', 'Composites'] | Silicon Carbide Preforms for Metal Infiltration by Selective Laser Sintering™ of Polymer Encapsulated Powders | Conference paper | https://repositories.lib.utexas.edu//bitstreams/de3d507b-e987-44c3-bf3d-f1fa765acc96/download | null | A polymer encapsulated silicon carbide system has been developed for
use with Selective Laser Sintering. Extensive studies with this material
have provided information pertaining to processing and material
parameters which most affect the strengths and densities of resulting
green parts. The important parameters consid... | null | null | null | null | null | null |
['Birmingham, B.R.', 'Tompkins, J.V.', 'Marcus, H.L.'] | 2018-10-03T18:19:38Z | 2018-10-03T18:19:38Z | 1994 | Mechanical Engineering | doi:10.15781/T22J68P93 | http://hdl.handle.net/2152/68669 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['SALDVI', 'selected laser area deposition', 'solid freeform fabrication'] | Silicon Carbide Shapes By Selected Area Laser Deposition Vapor Infiltration | Conference paper | https://repositories.lib.utexas.edu//bitstreams/efc3902b-fd12-4374-b248-af1b996d95b1/download | null | Selected Area Laser Deposition Vapor Infiltration (SALDVI) is a unique
combination ofselected area laser deposition, chemical vapor infiltration and layered
powder handling techniques that can be used to fabricate silicon carbide (SiC)/SiC
composite shapes. This paper discusses a SALDVI process under investigation whic... | null | null | null | null | null | null |
['Flach, Lawrance', 'Chartoff, Richard P.'] | 2018-10-03T15:36:15Z | 2018-10-03T15:36:15Z | 1994 | Mechanical Engineering | doi:10.15781/T2NG4HB3F | http://hdl.handle.net/2152/68649 | eng | 1994 International Solid Freeform Fabrication Symposium | Open | ['Polymer shrinkage', 'stereolithography', 'Photopolymerization'] | A Simple Polymer Shrinkage Model Applied to Stereolithography | Conference paper | https://repositories.lib.utexas.edu//bitstreams/6796957d-2c6b-4a2e-8a76-619c18df2c58/download | null | A simple polymer shrinkage model has been successfully applied to the stereolithography
process. The shrinkage model, which computes specific volume changes from the degree of
conversion of monomer to polymer, incorporates a lag between conversion and shrinkage. An
overall process model used to simulate the stereolitho... | null | null | null | null | null | null |
['Karunakaran, K. P.', 'Solanki, P. D.', 'Sahasrabudhe, Onkar S.', 'Pushpa, Vishal', 'Dwivedi, Rajeev', 'Kovacevic, Radovan'] | 2020-02-24T15:01:18Z | 2020-02-24T15:01:18Z | 2005 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80077', 'http://dx.doi.org/10.26153/tsw/7098'] | eng | 2005 International Solid Freeform Fabrication Symposium | Open | Rapid Prototyping | Simplified Production of Large Prototypes using Visible Slicing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3e33460f-7a79-40de-b0ab-8a48375b2318/download | null | Rapid Prototyping (RP) is a totally automatic generative manufacturing
technique based on a “divide-and-conquer” strategy called ‘slicing’. Simple
slicing used on 2.5-axis kinematics of the existing RP machines is responsible for
the staircase error. Although thinner slices will have less error, the slice thickness
has... | null | null | null | null | null | null |
['Flood, Aaron', 'Liou, Frank'] | 2021-11-18T17:40:01Z | 2021-11-18T17:40:01Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90442', 'http://dx.doi.org/10.26153/tsw/17363'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['laser beam quality', 'laser beam distance', 'Ti-64', 'aluminum', 'steel', 'blown powder', 'metal additive manufacturing'] | Simulated Effect of Laser Beam Quality on the Robustness of Laser-Based AM System | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4650a2a1-d050-4fbc-9d8b-be4f91841594/download | University of Texas at Austin | In many metal AM techniques, a laser is used as the heat source and in some applications, it
can be advantageous to work off of the focal plane. When operating outside of focus, the beam
quality of the laser can have drastic impacts on the ability to manufacture quality parts. This
study investigates the effect of the ... | null | null | null | null | null | null |
['Costa, L.', 'Vilar, R.', 'Réti, T.'] | 2020-02-17T15:03:30Z | 2020-02-17T15:03:30Z | 2004 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80004', 'http://dx.doi.org/10.26153/tsw/7029'] | eng | 2004 International Solid Freeform Fabrication Symposium | Open | Multilayer laser powder deposition | Simulating the Effects of Substrate Pre-Heating on the Final Structure of Steel Parts Built by Laser Powder Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/ea036650-8ed0-4efa-b3d7-013be6c8ae8e/download | null | Tool steel parts built by laser powder deposition often present a heterogeneous distribution of
properties caused by the complex structural transformations that occur during the deposition
process. A model describing these transformations has been developed. It couples finite element
heat transfer calculations with tra... | null | null | null | null | null | null |
['López, Omar', 'Martínez-Hernández, Uriel', 'Ramírez, José', 'Pinna, Christophe', 'Mumtaz, Kamran'] | 2021-10-26T18:46:03Z | 2021-10-26T18:46:03Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89554 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['Cellular Automata - Finite Element', 'CA-FE', 'AA-2024', 'microstructure', 'selective laser melting'] | Simulating the Microstructural Evolution of a Selective Laser Melted AA-2024 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/cc17bba6-d9b0-45fb-a1d6-16040789146b/download | University of Texas at Austin | A two-dimensional Cellular Automata (CA) – Finite Element (FE) (CA-FE) coupled model has
been developed in order to predict the microstructure formed during melting of a powdered AA-2024 feedstock using the Additive Manufacturing (AM) process Selective Laser Melting (SLM).
The presented CA model is coupled with a detai... | null | null | null | null | null | null |
['Childs, T.H.C.', 'Hauser, C.', 'Taylor, C.M.', 'Tontowi, A.E.'] | 2019-09-20T18:21:07Z | 2019-09-20T18:21:07Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75925', 'http://dx.doi.org/10.26153/tsw/3024'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Sintering | Simulation and Experimental Verification of Crystalline Polymer and Direct Metal Selective Laser Sintering 100 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fcbec39b-777c-4397-a2b2-5382707b4bca/download | null | A previously developed two-dimensional finite element simulation of the SLS of amorphous polymers has been extended to the study of crystalline polymers and metals. For crystalline polymers, three developments have been needed: the treatment of latent heat of melting, the modifying of a viscous densification law to all... | null | null | null | null | null | null |
['Kellner, I.N.', 'Zaeh, M.F.'] | 2021-09-30T19:52:18Z | 2021-09-30T19:52:18Z | 2010 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88287', 'http://dx.doi.org/10.26153/tsw/15228'] | eng | 2010 International Solid Freeform Fabrication Symposium | Open | ['Additive Layer Manufacturing', '3D inkjet printing', 'polymerization', 'product quality', 'multi-scale simulation models', 'material design', 'process design'] | Simulation Models for 3D Inkjet Printing – Material and Process Design | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4652b1e3-6cec-4a98-b434-05f4dce9f0be/download | University of Texas at Austin | Due to the ability to produce complex parts with no need for pre-tooling, Additive Layer
Manufacturing (ALM) is a future technology with 3D inkjet printing being one of them. The
latter is based on the polymerization of a liquid dispensed into a powder bed. However, the
special challenges which have to be met here are ... | null | null | null | null | null | null |
['Tikare, Veena', 'Griffith, Michelle', 'Schlienger, Eric', 'Smugeresky, John'] | 2018-12-07T17:08:46Z | 2018-12-07T17:08:46Z | 1997 | Mechanical Engineering | doi:10.15781/T2GF0NG8W | http://hdl.handle.net/2152/71450 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['microstructures', 'SEM micrograph'] | Simulation Of Coarsening During Laser Engineered Net Shaping | Conference paper | https://repositories.lib.utexas.edu//bitstreams/b2791c2a-cd9e-465c-9db4-e9969045d610/download | null | Laser Engineered Net_Shaping, otherwise known as LENSTM, is an advanced manufacturing
technique used to fabricate complex near net shaped components directly from engineering solid
models without the use of dies or machining. The ultimate objective ofthis project is to develop
predictive simulation capability which wil... | null | null | null | null | null | null |
['Yan, Lei', 'Li, Wei', 'Chen, Xueyang', 'Zhang, Yunlu', 'Newkirk, Joe', 'Liou, Frank', 'Dietrich, David'] | 2021-10-27T21:31:01Z | 2021-10-27T21:31:01Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89621 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['cooling rate', 'crack formation', 'direct laser deposition', 'Ti-48Al-2Cr-2Nb'] | Simulation of Cooling Rate Effects on Ti-48Al-2Cr-2Nb Crack Formation in Direct Laser Deposition | Conference paper | https://repositories.lib.utexas.edu//bitstreams/9ad7e2dd-485d-4dee-a28c-7b6ed1fc1152/download | University of Texas at Austin | Transient temperature history is vital in direct laser deposition (DLD) because it reveals the
cooling rate at specific temperatures, which directly relates to phase transformation and types of
microstructure formed in deposit. FEA simulation was employed to study the transient
temperature history and cooling rate at d... | null | null | null | null | null | null |
['Zhao, Xushan', 'Wang, Yuanxun', 'Wang, Guilan', 'Zhang, Haiou'] | 2021-11-18T17:35:16Z | 2021-11-18T17:35:16Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90440', 'http://dx.doi.org/10.26153/tsw/17361'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['welding with rotation compression', 'WAAM', 'deformation control', 'residual stress'] | Simulation of Hybrid WAAM and Rotation Compression Forming Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/4828c80a-3715-428e-ac0d-83d6d0e2f658/download | University of Texas at Austin | Wire arc additive manufacturing (WAAM) has been studied and widely applied due to its high
forming efficiency and low production cost. In the process of WAAM, there are problems of
cracking, deformation, large residual stress, insufficient properties, and instability caused by
repeated rapid heating and chilling. Weldi... | null | null | null | null | null | null |
['Flach, Lawrance', 'Jacobs, Michelle A.', 'Klosterman, Donald A.', 'Chartoff, Richard P'] | 2019-02-25T17:27:10Z | 2019-02-25T17:27:10Z | 1998 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73475', 'http://dx.doi.org/10.26153/tsw/625'] | eng | 1998 International Solid Freeform Fabrication Symposium | Open | ['LOM', 'lamination'] | Simulation of Laminated Object Manufacturing (LOM) with Variation of Process Parameters | Conference paper | https://repositories.lib.utexas.edu//bitstreams/da50e362-709e-420c-b29d-d19a913ad486/download | null | A previously developed and verified thermal model for Laminated Object Manufacturing
(LOM) was used to investigate the effects of various processing parameters on the temperature
profile in a LOM part during the build cycle. The mathematical model, based on 3-dimensional
transient heat conduction in a rectangular geome... | null | null | null | null | null | null |
['Wang, Z.', 'Smith, D.E.'] | 2021-11-18T17:33:44Z | 2021-11-18T17:33:44Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90439', 'http://dx.doi.org/10.26153/tsw/17360'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['melt flow', 'fiber orientation', 'numerical simulation', 'Galerkin Finite Element Method', 'polymer composites', 'polymer deposition additive manufacturing'] | Simulation of Mutually Dependent Polymer Flow and Fiber Filled in Polymer Composite Deposition Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/cdb68d7f-ab31-4c3b-b0fb-4581c5bd84b5/download | University of Texas at Austin | Short fiber-filled polymers experience increasing applications in melt extrusion additive
manufacturing. As the filled polymer is melted and extruded, the fiber-filled polymer suspension
exhibits mutually dependent effects, such that flow kinematics influence fiber orientation while
the fiber alignment affects the form... | null | null | null | null | null | null |
['Heller, B.P.', 'Smith, D.E.', 'Jack, D.A.'] | 2021-11-03T20:54:46Z | 2021-11-03T20:54:46Z | 2017 | Mechanical Engineering | null | https://hdl.handle.net/2152/89931 | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['polymer melt flow', 'melt flow', 'fiber orientation', 'planar deposition', 'finite element analysis', 'fused filament fabrication'] | Simulation of Planar Deposition Polymer Melt Flow and Fiber Orientation in Fused Filament Fabrication | Conference paper | https://repositories.lib.utexas.edu//bitstreams/1fb0aa5c-a1a2-4b31-a0a0-901318a465ee/download | University of Texas at Austin | Mechanical and thermal properties of a 3D printed part are improved by adding discrete
carbon fibers to the Fused Filament Fabrication (FFF) polymer feedstock. The properties of the
fiber-filled composite are significantly influenced by the orientation of the carbon fibers within
the extruded bead where fiber orientati... | null | null | null | null | null | null |
Brown, Stuart | 2018-05-03T18:16:41Z | 2018-05-03T18:16:41Z | 1993 | Mechanical Engineering | doi:10.15781/T2348H04J | http://hdl.handle.net/2152/65052 | eng | 1993 International Solid Freeform Fabrication Symposium | Open | ['Department of Materials Science and Engineering', 'SFF', 'SFF geometry', '3D Printing'] | Simulation of Solid Freeform Fabrication | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e30cb355-63c1-47e0-84bd-9dd2c71ab0cd/download | null | Solid freeform fabrication involves highly coupled, nonlinear, thermomechanical processes. This
investigation simulates the formation of a simple SFF geometry, a right, rectangular prism with
aspect ratios of 1: 1:2. We include the effects of material variation, deposition path, and initial conditions
to predict result... | null | null | null | null | null | null |
['Lee, Y.S.', 'Kirka, M.M.', 'Raghavan, N.', 'Dehoff, R.R.'] | 2021-11-03T20:29:47Z | 2021-11-03T20:29:47Z | 2017 | Mechanical Engineering | null | https://hdl.handle.net/2152/89924 | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['spot melting', 'scan strategy', 'solidification', 'columnar to equixaed transition', 'metal additive manufacturing'] | Simulation of Spot Melting Scan Strategy to Predict Columnar to Equiaxed Transition in Metal Additive Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/14b633c5-5b49-4d2e-a7b2-259422adae6a/download | University of Texas at Austin | Recently, additive manufacturing (AM) processes are transforming from rapid
prototyping technology to mass industrial production due to increase in the fidelity of the AM
machines. This trend triggers the process optimization for various applications. In prior
literature, high-fidelity numerical models have been presen... | null | null | null | null | null | null |
['Temur, R.', 'Coole, T.', 'Bocking, C.'] | 2019-10-18T16:35:13Z | 2019-10-18T16:35:13Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76254', 'http://dx.doi.org/10.26153/tsw/3343'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | Electrochemical | Simulation of the Electrochemical Machining Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d94cde53-8b9d-4715-99db-6aeea1d0abed/download | null | Electrochemical machining (ECM) or erosion, is a process for shaping materials by means of the
anodic dissolution of a work-piece using suitably shaped cathodes? However, the predictability
of the process is poor due to current density variations over the electrode contour leading to poor
dimensional tolerances.
This p... | null | null | null | null | null | null |
['Weinhold, Benjamin', 'Heck, Blake', 'Albright, Ashton', 'Wang, Keran', 'Grote, Jon-Michael', 'Adeniji, Emmanuel', 'Masoomi, Mohammad', 'Thompson, Scott'] | 2021-12-01T21:44:03Z | 2021-12-01T21:44:03Z | 2021 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90623', 'http://dx.doi.org/10.26153/tsw/17542'] | eng | 2021 International Solid Freeform Fabrication Symposium | Open | ['distortion', 'part-to-substrate location', 'build orientation', 'part quality', 'laser powder bed fusion'] | Simulation of the Laser-Powder Bed Fusion Process for Determining the Effects of Part-to-Substrate Location and Orientation on Distortion in a Connecting Rod | Conference paper | https://repositories.lib.utexas.edu//bitstreams/628518cb-2d61-46d6-8033-4fe55077df19/download | University of Texas at Austin | The use of process simulation for designing parts and ensuring their effective additive
manufacture can result in reduced product development times which would otherwise require
costly trial-and-error manufacturing and testing experiments. The goal of this project was to
determine the effects of part-to-substrate locat... | null | null | null | null | null | null |
['Seefried, M.', 'Zaeh, M.F.', 'Meindl, M.'] | 2020-02-13T21:04:52Z | 2020-02-13T21:04:52Z | 8/31/04 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/79980', 'http://dx.doi.org/10.26153/tsw/7005'] | eng | 2004 International Solid Freeform Fabrication Symposium | Open | Indirect Metal Laser Sintering | Simulation of the Process Step Polymer Removal in Indirect Metal Laser Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/309d90f1-2abe-4387-9ba4-33a8c096d97a/download | null | With the Indirect Metal Laser Sintering and by means of a heat treatment in an oven process
metal components can be produced. In the first step the polymer is transformed from the solid
state into the gas phase. This takes place all over the component at different velocities depending
on the local temperatures and temp... | null | null | null | null | null | null |
['Steinberger, J.', 'Shen, J.', 'Manetsberger, K.', 'Muellers, J.'] | 2019-09-23T16:40:36Z | 2019-09-23T16:40:36Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75962', 'http://dx.doi.org/10.26153/tsw/3061'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Optimization | The Simulation of the SLS Process as the Basis of a Process Optimization 377 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/60f11499-1c84-47cb-8cb5-8b7195896451/download | null | In this work, a new model of the SLS process is introduced, offering the chance of analytically optimizing Selective Laser Sintering. The laser energy input is calculated by considering multiple scattering in the powder bed. The heat transfer is described by a new model which considers the heat flow through the growing... | null | null | null | null | null | null |
['Delfs, Patrick', 'Herale, Ashrith Ananthraj', 'Li, Zhiyuan', 'Schmid, Hans-Joachim'] | 2021-10-18T22:32:25Z | 2021-10-18T22:32:25Z | 2014 | Mechanical Engineering | null | https://hdl.handle.net/2152/89273 | eng | 2014 International Solid Freeform Fabrication Symposium | Open | ['laser sintering', 'surface roughness', 'surface topography'] | Simulation of the Surface Topography on Laser Sintered Polymer Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fccddedd-470c-48fc-976e-6af6a81cbb71/download | University of Texas at Austin | One barrier of laser sintering (LS) to become the main process for Direct Manufacturing (DM)
is the surface quality of LS parts. Hence, the property which has to be improved is the rough
surfaces of LS parts due to the layered structure. Another additional effect is the incomplete melting
of powder particles on the sur... | null | null | null | null | null | null |
['Zhang, Kai', 'Liu, Tingting', 'Liao, Wenhe', 'Zhang, Changdong', 'Zheng, Yi', 'Shao, Huang'] | 2021-11-15T20:39:52Z | 2021-11-15T20:39:52Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90263', 'http://dx.doi.org/10.26153/tsw/17184'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['thermal behavior', 'molten pool', 'solidification', 'selective laser melting', 'alumina'] | Simulation of the Thermal Behavior and Analysis of Solidification Process During Selective Laser Melting of Alumina | Conference paper | https://repositories.lib.utexas.edu//bitstreams/2f44e69e-f889-43b4-8c60-d4b7fad92c73/download | University of Texas at Austin | Selective laser melting (SLM) has rapidly developed in the past decade. High
precision-complex ceramics parts can be directly fabricated using this technology. To study
the thermal behavior of molten pools in the selective laser melting of alumina （Al2O3）, we
established a three-dimensional model based on ANSYS. Then, ... | null | null | null | null | null | null |
['Gartner, P.', 'Krischke, N.', 'Benfer, M.', 'Bender, M.', 'Lanza, G.', 'Fleischer, J.', 'Dost, G.'] | 2023-04-05T13:58:09Z | 2023-04-05T13:58:09Z | 2022 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/117777', 'http://dx.doi.org/10.26153/tsw/44656'] | eng | 2022 International Solid Freeform Fabrication Symposium | Open | AM parts | Single Part Tracking Enabled by Fluorescent Polysecure Tracing Particles in Am Parts | Conference paper | https://repositories.lib.utexas.edu//bitstreams/b1e6dbf5-1de1-41f8-9fff-0615b2084400/download | null | Traceability is widely recognized as a core enabler of many industry 4.0 technologies. The
necessary identification of products is often realized through label-based systems, but tracing
products with particular geometric constraints that prohibit the use of such systems remains an
issue. A promising alternative of ... | null | null | null | null | null | null |
['Borish, Michael', 'Roschli, Alex', 'Wade, Charles', 'Post, Brian', 'White, Liam', 'Adkins, Cameron'] | 2024-03-26T20:16:54Z | 2024-03-26T20:16:54Z | 2023 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/124391', 'https://doi.org/10.26153/tsw/50999'] | en_US | 2023 International Solid Freeform Fabrication Symposium | Open | ['slicing', 'manufacturing', 'spiralization', 'continuous fiber deposition', 'single path', 'graph theory', 'topological hierarchy'] | Single Path Generation for Closed Contours via Graph Theory and Topological Hierarchy | Conference paper | https://repositories.lib.utexas.edu//bitstreams/532730f7-7bb8-4098-8f07-18b7bef1e79a/download | University of Texas at Austin | Slicing converts a 3D object into a set of 2D polygons that are filled with multiple path types. These
paths involve travels where the extruder of the machine must stop building, lift, travel to the next path, lower,
and resume construction. Travels are considered wasted time as construction of the object is not occurr... | null | null | null | null | null | null |
['Gong, Haijun', 'Teng, Chong', 'Zeng, Kai', 'Pal, Deepankar', 'Stucker, Brent', 'Dilip, J.J.S.', 'Beuth, Jack', 'Lewandowski, J.'] | 2021-10-28T21:05:11Z | 2021-10-28T21:05:11Z | 2016 | Mechanical Engineering | null | https://hdl.handle.net/2152/89700 | eng | 2016 International Solid Freeform Fabrication Symposium | Open | ['single track', 'support structure', 'powder bed', 'Ti-6Al-4V', 'selective laser melting'] | Single Track of Selective Laser Melting Ti-6Al-4V Powder on Support Structure | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8c3eb163-6248-43b7-ae34-097f3eff0983/download | University of Texas at Austin | Melt pool shows inconsistency due to the varied heat conditions in selective laser melting (SLM)
process, even if identical process parameters are used. The characterization of the actual melt pool
shape is highly desired in order to eventually control the quality and property of additive
manufacturing products. It has... | null | null | null | null | null | null |
['Ramos, Jorge A.', 'Murphy, Jeremy', 'Lappo, Karmen', 'Wood, Kristin', 'Bourell, David L.', 'Beaman, Joseph J.'] | 2019-10-23T14:40:08Z | 2019-10-23T14:40:08Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76749', 'http://dx.doi.org/10.26153/tsw/3838'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Superalloy | Single-Layer Deposits of Nickel Base Superalloy by Means of Selective Laser Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/04a1c55c-eeaf-4df0-a564-50099e7d0586/download | null | Single layer deposits consisting of Mar-M 247 powder were consolidated on
Alloy 718 polycrystalline flat sheets by means of the Selective Laser Melting (SLM)
technique. The deposition process consisted in selectively fusing a powder bed precompacted using of an insulating non-wettable mask trough. The mask-powder-subst... | Funding for this project was provided by Rolls-Royce North America and the
University of Texas at Austin. | null | null | null | null | null |
['Nelson, Christian', 'Barlow, J.W.'] | 2018-04-12T17:20:57Z | 2018-04-12T17:20:57Z | 1990 | Mechanical Engineering | doi:10.15781/T2GM8256M | http://hdl.handle.net/2152/64269 | eng | 1990 International Solid Freeform Fabrication Symposium | Open | ['Department of Chemical Engineering', 'Selective laser sintering', 'SLS machine'] | Sintering Rates in the Selective Laser Sintering Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/345d3ebb-fc9b-4c4a-8814-9043bf8b58f4/download | null | This paper presents. a procedure to determine rates of sintering as a function of
temperature using an isothermaloven. The rate of height change of a powder sample in the
oven at temperatures near the Tg or Tm is measured. From this information an activation
energy is calculated. This activation energy is similar to ac... | null | null | null | null | null | null |
['Khoshnevis, Behrokh', 'Asiabanpour, Bahram', 'Mojdeh, Mehdi', 'Koraishy, Babar', 'Palmer, Kurt', 'Deng, Zongliang'] | 2019-10-24T18:17:50Z | 2019-10-24T18:17:50Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/77416', 'http://dx.doi.org/10.26153/tsw/4505'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Powder Sintering | SIS-A New SFF Method Based on Powder Sintering | Conference paper | https://repositories.lib.utexas.edu//bitstreams/fc60b55b-d7e2-4a38-9493-866d022f4f96/download | null | Selective Inhibition of Sintering is a layered fabrication process which is capable of rapidly
producing accurate functional parts out of polymers and metals using a relatively inexpensive
machine. This article presents a brief overview of the research and development aimed at
establishing the feasibility and the poten... | This material is based upon work supported by the National Science Foundation under SGER
Grant No. 0088135, and Long Range Scientific and Technology Program of Office of Naval
Research. | null | null | null | null | null |
['Wu, Yan', 'Yang, Li'] | 2021-11-09T20:33:01Z | 2021-11-09T20:33:01Z | 2018 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90159', 'http://dx.doi.org/10.26153/tsw/17080'] | eng | 2018 International Solid Freeform Fabrication Symposium | Open | ['fracture behavior', 'cellular structures', 'size', 'topology effects', 'bending', 'stretching'] | Size and Topology Effects on Fracture Behavior of Cellular Structures | Conference paper | https://repositories.lib.utexas.edu//bitstreams/3addc476-8837-45fe-8b24-6d92f7261ce5/download | University of Texas at Austin | Cellular structures can deform by either the bending, stretching or both of the cell walls or
cell struts. In this study, the fracture characteristics of multiple typical cellular structures that
represent both the bending-dominated and stretching-dominated structures were investigated.
An analytical model based on the... | null | null | null | null | null | null |
['Eiamsa-ard, Kunnayut', 'Zhang, Jun', 'Liou, F.W.'] | 2019-09-26T17:27:00Z | 2019-09-26T17:27:00Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76026', 'http://dx.doi.org/10.26153/tsw/3125'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | Manufacturing | Skeleton-based Geometric Reasoning for Adaptive Slicing in a Five-axis Laser Aided Manufacturing Process System | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e638211b-26b4-4257-92c8-e7adc08f7374/download | null | Multi-axis Laser Aided Manufacturing Process (LAMP) is an additive manufacturing process similar to laser cladding. This process can produce full functional parts [1]. Traditional Layered Manufacturing processes produce parts with limited surface quality; and also the build time is often long due to the deposition of s... | null | null | null | null | null | null |
['Chesser, Phillip', 'Post, Brian', 'Lind, Randy', 'Roschli, Alex', 'Atkins, Celeste', 'Boulger, Alex', 'Mhatre, Paritosh', 'Lloyd, Pete'] | 2021-11-18T18:32:51Z | 2021-11-18T18:32:51Z | 2019 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/90459', 'http://dx.doi.org/10.26153/tsw/17380'] | eng | 2019 International Solid Freeform Fabrication Symposium | Open | ['SkyBAAM', 'large-scale fieldable deposition system', 'concrete deposition system', 'Oak Ridge National Laboratory'] | SkyBAAM Large-Scale Fieldable Deposition Platform System Architecture | Conference paper | https://repositories.lib.utexas.edu//bitstreams/83844e5d-8f3a-40ed-9567-ec1f7d89aedb/download | University of Texas at Austin | Oak Ridge National Laboratory (ORNL) is currently developing a concrete deposition
system for infrastructure-scale printed objects. This system, called SkyBAAM, uses a cable driven
motion platform to manipulate the print head. This work focuses on the general aspects of the
system architecture, including arrangement of... | null | null | null | null | null | null |
['Pang, Thomas', 'Figueroa, Israel', 'Fong, John', 'Melisaris, Anastasios', 'Wang, Renyi', 'Hanna, Stephen', 'Nguyen, Hop', 'Guertin, Michelle', 'Phan, Cathy'] | 2018-12-05T17:27:29Z | 2018-12-05T17:27:29Z | 1997 | Mechanical Engineering | doi:10.15781/T2P844G4D | http://hdl.handle.net/2152/71401 | eng | 1997 International Solid Freeform Fabrication Symposium | Open | ['SFF', 'SLA technology'] | SL 5410: High Humidity, Water, and Heat Resistant Resin for Stereolithography | Conference paper | https://repositories.lib.utexas.edu//bitstreams/c6cd7884-df3e-4c94-af19-451be3f2eeeb/download | null | A new Stereolithography (SL) resin, CibaTool® SL 5410, which imparts good humidity
and heat resistance, was released in July, 1997. This epoxy based resin for SLA-500 was
developed mainly to eliminate the relatively weak resistance to high humidity and high heat that
the first generation ofresins suffered from. Namely,... | null | null | null | null | null | null |
['McPherson, Jace', 'Bliss, Adam', 'Smith, Flora', 'Hariss, Edmund', 'Zhou, Wenchao'] | 2021-11-02T20:24:01Z | 2021-11-02T20:24:01Z | 2017 | Mechanical Engineering | null | https://hdl.handle.net/2152/89887 | eng | 2017 International Solid Freeform Fabrication Symposium | Open | ['slicer', 'mobile printer', 'cooperative 3D printing', 'fused deposition modeling'] | A Slicer and Simulator for Cooperative 3D Printing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/12030264-9fd0-4f80-9c54-d293a7b9d41d/download | University of Texas at Austin | Cooperative 3D printing is an emerging technology that aims to increase the 3D printing
speed and to overcome the size limit of the printable object by having multiple mobile 3D
printers (or printhead-carrying mobile robots) work together on a single print job on a factory
floor. It differs from traditional layer-by-la... | null | null | null | null | null | null |
['Sundaram, R.', 'Choi, J.'] | 2019-10-18T16:02:13Z | 2019-10-18T16:02:13Z | 2001 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76245', 'http://dx.doi.org/10.26153/tsw/3334'] | eng | 2001 International Solid Freeform Fabrication Symposium | Open | 5-Axis | A Slicing Procedure for 5-Axis layered Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/49e382be-21a3-4302-8ed0-e199448232cf/download | null | The 5-axis layered manufacturing technology facilitates fabrication of a part with
overhanging features without the use of supports, thereby making a direct-to-use part from the
layered manufacturing technology a reality. In this paper we describe a direct slicing procedure
for a CAD model, a crucial process planning t... | null | null | null | null | null | null |
['Haeseong, J. Jee', 'Lee, Byong-Yeol'] | 2019-03-12T16:15:30Z | 2019-03-12T16:15:30Z | 1999 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/73595', 'http://dx.doi.org/10.26153/tsw/737'] | eng | 1999 International Solid Freeform Fabrication Symposium | Open | ['SFF', 'CAD'] | Slicing STEP-based CAD Models for CAD/RP Interface | Conference paper | https://repositories.lib.utexas.edu//bitstreams/a0586a06-7c8b-48f7-a258-782369df17b9/download | null | SFF technologies have an ability of creating a physical part directly .•. from its computer
model by. adding material on a layer by layer basis. One of the problems lies in their
current file fonnat for CAD data exchange. Current method using the de facto industry
standard STL have at times resulted in problems such< a... | null | null | null | null | null | null |
['Ainsley, C.', 'Hon, K.K.B.'] | 2018-11-09T16:40:53Z | 2018-11-09T16:40:53Z | 1996 | Mechanical Engineering | doi:10.15781/T2JH3DN57 | http://hdl.handle.net/2152/69934 | eng | 1996 International Solid Freeform Fabrication Symposium | Open | ['free form fabrication', 'ceramic industry', 'casting'] | Slip Casting as a Rapid Tooling Process | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f1be120a-cb2a-43b8-b8c1-3c3589da54ee/download | null | The paper discusses the slip casting ofstainless steel as a method offorming injection
moulding tooling. Main steps involved in the precision slip casting ofstainless steel
and the effects ofmajor parameters such as casting rate have on accuracy are fully
discussed. The slip casting process has numerous technical advan... | null | null | null | null | null | null |
['Hagedorn, Y.-C.', 'Balachandran, N.', 'Meiners, W.', 'Wissenbach, K.', 'Poprawe, R.'] | 2021-10-05T14:19:35Z | 2021-10-05T14:19:35Z | 8/17/11 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/88376', 'http://dx.doi.org/10.26153/tsw/15315'] | eng | 2011 International Solid Freeform Fabrication Symposium | Open | ['Additive Manufacturing', 'Selective Laser Melting', 'ceramics', 'dental restorations'] | SLM of Net-Shaped High Strength Ceramics: New Opportunities for Producing Dental Restorations | Conference paper | https://repositories.lib.utexas.edu//bitstreams/0ddef393-a609-4565-971d-34905b818c06/download | University of Texas at Austin | Oxide ceramics yield excellent mechanical properties along with outstanding thermal and
wear resistance. However, little work on additive Manufacturing (AM) of high-strength ceramics
has been stated. In the present paper the current state of development in Selective Laser Melting
(SLM) of pure ceramic specimens is revi... | null | null | null | null | null | null |
['Haberer, Marc', 'Zak, Gennady', 'Park, Chul', 'Paraschivoiu, Marius', 'Benhabib, Beno'] | 2019-09-23T16:29:25Z | 2019-09-23T16:29:25Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75956', 'http://dx.doi.org/10.26153/tsw/3055'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Ribre-Reinforced | Slot-Coating for Rapid Manufacturing of Fibre-Reinforced Parts 333 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/85e3e941-a805-46f8-a093-db010808a6c9/download | null | Mechanical properties of parts manufactured through photolithography process are
improved through the addition of short glass fibres. A lithography-based prototyping system for
the manufacture of such composite parts has been under development in our laboratory. This
paper will specifically detail a novel Liquid Layer ... | null | null | null | null | null | null |
Boivie, Klas | 2019-09-23T15:16:02Z | 2019-09-23T15:16:02Z | 2000 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/75932', 'http://dx.doi.org/10.26153/tsw/3031'] | eng | 2000 International Solid Freeform Fabrication Symposium | Open | Sintering | SLS Application of the Fe-Cu-C System for Liquid Phase Sintering 141 | Conference paper | https://repositories.lib.utexas.edu//bitstreams/d161fe81-14ea-4fca-be7b-7f958da09ad6/download | null | The present work suggests the possibility to exploit the phenomena of copper swelling, and the controlling effect of carbon during liquid phase sintering, to be used in SLS technology to achieve temperable tooling materials in a single furnace cycle. As a basic investigation of this possibility, four powder samples of ... | null | null | null | null | null | null |
['Kim, J.H.', 'Creasy, T.S.'] | 2019-10-23T14:42:49Z | 2019-10-23T14:42:49Z | 2002 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/76750', 'http://dx.doi.org/10.26153/tsw/3839'] | eng | 2002 International Solid Freeform Fabrication Symposium | Open | Nanoparticle | The SLS Characteristics of 1.8wt% Clay Nanoparticle/Nylon 6 Composite | Conference paper | https://repositories.lib.utexas.edu//bitstreams/e0fdc923-6400-460b-87d4-7857dbbcbe6e/download | null | Selective laser sintering (SLS) characteristics of clay nanoparticle/Nylon 6 composite
were studied for the applications in Rapid Prototyping and Manufacturing (RP&M). Differences
of sintering behaviors between the nanocomposite and standard SLS polymers were investigated.
Nanoparticles change the material’s properties... | null | null | null | null | null | null |
['Niino, Toshiki', 'Sakai, Yasuyuki', 'Huang, Hongyun', 'Naruke, Hiromichi'] | 2020-02-27T20:58:25Z | 2020-02-27T20:58:25Z | 9/14/06 | Mechanical Engineering | null | ['https://hdl.handle.net/2152/80106', 'http://dx.doi.org/10.26153/tsw/7127'] | eng | 2006 International Solid Freeform Fabrication Symposium | Open | Polycaprolactone powder | SLS Fabrication of Highly Porous Model Including Fine Flow Channel Network Aiming at Regeneration of Highly Metabolic Organs | Conference paper | https://repositories.lib.utexas.edu//bitstreams/f8a8f554-6364-4222-80b8-06b93ee65865/download | null | Fabrication of very porous scaffold for regeneration of highly metabolic organs is
reported. Polycaprolactone (PCL) powder was mixed with fine salt grains as filler and
SLS processed to develop a model including fine flow channel network. The fabricated
model was rinsed with water to dissolve the salt, and high porosit... | null | null | null | null | null | null |
['Evans, R. S.', 'Bourell, D. L.', 'Beaman, J. J.', 'Campbell, M. I.'] | 2020-02-20T21:11:09Z | 2020-02-20T21:11:09Z | 2005 | Mechanical Engineering | null | https://hdl.handle.net/2152/80056 | eng | 2005 International Solid Freeform Fabrication Symposium | Open | Rapid prototyping | SLS Materials Development Method for Rapid Manufacturing | Conference paper | https://repositories.lib.utexas.edu//bitstreams/8762714a-6d67-4e78-860b-852853597713/download | null | As soon as SFF technology development began to make Rapid Prototyping possible the
interest in Rapid Manufacturing (RM) began to grow. The advantages in terms of
functional integration, elimination of tooling and fixtures and mass customization make a
compelling case for RM, leading some in the field to call it the nex... | null | null | null | null | null | null |
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