2003 International Solid Freeform Fabrication Symposium
Proceedings for the 2003 International Solid Freeform Fabrication Symposium. For more information about the symposium, please see the Solid Freeform Fabrication website .
The Fourteenth Solid Freeform Fabrication (SFF) Symposium, held at The University of Texas in Austin on August 4-6, 2003, was attended by over 100 national and international researchers from fourteen countries. Papers addressed SFF issues in computer software, machine design, materials synthesis and processing, and integrated manufacturing. The diverse domestic and foreign attendees included industrial users, SFF machine manufacturers, university researchers and representatives from the government. The Symposium organizers look forward to its being a continuing forum for technical exchange among the expanding body of researchers involved in SFF.
The Symposium was again organized in a manner to allow the multi-disciplinary nature of the SFF research to be presented coherently, with various sessions emphasizing process development, design tools, modeling and control, process parameter optimization, applications and materials. We believe that documenting the changing state of SFF art as represented by these Proceedings will serve both those presently involved in this fruitful technical area as well as new researchers and users entering the field.
This year is the first year for authors to elect to have their manuscript submissions rigorously reviewed as refereed submissions. At least two external reviewers assessed these manuscripts. Rejected manuscripts and manuscripts with mandatory revisions that were not revised have been included in the proceedings as unreviewed. There are a number of excellent manuscripts in the Proceedings for which the authors opted not to be reviewed. Reviewed manuscripts are noted as such before the paper abstract along with the date of acceptance.
The Organizing Committee held a best paper competition for the first time this year. Both oral presentations and the poster presentations were judged by at least two independent reviewers. The criteria included clarity of presentation as well as quality, significance and soundness of the research. The best oral presentation was awarded to Morgan Larsson from Arcam AB (Germany) who gave the paper “Rapid Manufacturing with Electron Beam Melting (EBM) – A Manufacturing Revolution?” The best poster presentation was awarded to Kun Dai, Xiaoxuan Li and Leon L. Shaw from the University of Connecticut-Storrs for the presentation entitled, “Comparisons Between Thermal Modeling and Experiments in Laser-Densified Dental Powder Bodies”.
The editors would like to extend a warm “Thank You” to Rosalie Foster for her detailed handling of the logistics of the meeting and the Proceedings, as well as her excellent performance as registrar and problem solver during the meeting. We are grateful to Cindy Pflughoft who helped with Proceedings production. We would like to thank the Organizing Committee, the session chairs, the attendees for their enthusiastic contributions, and the speakers both for their significant contribution to the meeting and for the relatively prompt delivery of the manuscripts comprising this volume. We look forward to the continued close cooperation of the SFF community in organizing the Symposium. We also want to thank Ralph Wachter and the Office of Naval Research (N00014-03-1-0913) for supporting this meeting financially. The meeting was co-organized by the University of Connecticut at Storrs, and the Mechanical Engineering Department, Laboratory for Freeform Fabrication and the Texas Materials Institute at The University of Texas at Austin.
Recent Submissions
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Rapid Manufacturing with Electron Beam Melting (EBM) - A Manufacturing Revolution?
(2003)The Electron Beam Melting technology is the result of intensive research and development and has a wide array of applications within areas such as Rapid Prototyping, Rapid Manufacturing, Tooling and Biomedical Engineering. ... -
Rapid Prototyping of 3D Scaffolds for Tissue Engineering Using a Four-Axis Multiple-Dispenser Robotic System
(2003)A desktop rapid prototyping (RP) system has been developed to fabricate scaffolds for tissue engineering (TE) applications. The system is a computer-controlled four-axis machine with a multiple-dispenser head. This paper ... -
Reaction Bonded Silicon Carbide: SFF, Process Refinement and Applications
(2003)Reaction bonded silicon carbide (RBSiC) has a wide variety of industrial applications and a manufacturing process based on Selective Laser Sintering (SLS) has been demonstrated in previous research at the University of ... -
Design and Analysis of Orthogonally Compliant Features for DuraForm/SLS Manufactured Plates
(2003)In many applications of parts manufactured by Solid Freeform Fabrication (SFF), compliance is an important factor. In order to achieve given deformation goals with optimal shape, the design of compliant mechanisms and ... -
Control of the Cross Section Geometry of Extruded Dental Porcelain Slurries for Rapid Prototyping Applications
(2003)This study investigates the dependence of the cross section geometry of extruded dental porcelain slurries on the rheological property of the slurry and the extrusion conditions. It is found that a pseudoplastic slurry ... -
Functionally Graded Polymer Matrix Nano-Composites by Solid Freeform Fabrication: A Preliminary Report
(2003)A research program has been initiated to develop a Solid Freeform Fabrication (SFF) technology for combining nanosized particulate or fiber reinforcements with a photocurable thermoset matrix resin in order to produce ... -
Rapid Prototyping for Aerospace Launch Vehicles
(2003)Initial studies of the aerodynamic characteristics of proposed launch vehicles can be made more accurately if lower cost, high-fidelity aerodynamic models are available for wind tunnel testing early in design phase. Rapid ... -
Laser Melting of Ti-Ni Shape Memory Alloy
(2003)The applicability of laser melting in fabrication of Ti-Ni shape memory alloy was investigated experimentally. Elemental powders of Ti and Ni and mechanically alloyed (MA) TiNi powder were used to fabricate specimens. ... -
Direct Selective Laser Sintering of Tool Steel Powders to High Density: Part B -The Effect on Microstructural Evolution
(2003)This paper describes recent progress on the Direct Selective Laser Sintering of M2 [Fe6W-5Mo-4Cr-2V-0.8C] high speed steel (HSS) and H13 [Fe-5Cr-1V-1Si-1.5Mo-0.4C] tool steel powders. Part B will focus on the microstructural ... -
Direct Selective Laser Sintering of Tool Steel Powders to High Density: Part A - Effects of Laser Beam Width and Scan Strategy
(2003)This paper describes progress on the Direct Selective Laser Sintering of M2 and H13 tool steel powders, comparing this with previous and further observations on stainless steel powders. The distinguishing feature is the ... -
A Generic System for Homogenous SLS Steel Materials
(2003)A generic approach to a variety if different steel materials for SLS based application has been examined. This approach is based on a base steel alloy powder mixed with a powder blend of much smaller particles. The powder ... -
Three Dimensional Printing of Tungsten Carbide-Cobalt Using a Cobalt Oxide Precursor
(2003)Tungsten Carbide 10 wt% Cobalt parts were formed by Slurry-based Three Dimensional Printing (3DPTM). The slurry contained a mixture of Tungsten Carbide and Cobalt Oxide powders, as well as dispersing and redispersing ... -
Effects of Cryogenic Processing on Rapid Prototyping Materials (DSMSomos-8110 and DuraForm PA)
(2003)This research investigates the effects of cryogenic processing on the properties of rapid prototyped materials. Not much research has been done on the post-processing (aging) of rapid prototyped (RP) polymers at temperatures ... -
Post-Processing of DuraForm� Polyamide with Small-Scale Features
(2003)In recent years layer manufacturing processes have evolved from Rapid Prototyping (the production of pre-production prototypes) to Rapid Manufacture (the production of end use parts) where limitations of the processes ... -
Selective Laser Sintering of DuraForm Polyamide with Small-Scale Features
(2003)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. ... -
Precision Extruding Deposition and Characterization of Cellular Poly-e-Caprolactone Tissue Scaffolds
(2003)Successes in scaffold guided tissue engineering require scaffolds to have specific macroscopic geometries and internal architectures in order to provide the needed biological and biophysical functions. Freeform fabrication ... -
Mechanics of the Selective Laser Raster-Scanning Surface Interaction
(2003)In recent years, the use of a high power laser beam actuated by fast speed scanning mirrors has opened up novel selective laser raster-scan processing venues as extremely rapid motion and high overlapping of the beam can ... -
Characterization of High Alloy Steel Produced Via Electron Beam Melting
(2003)Electron Beam Melting (EBM) is a direct-to-metal freeform fabrication technique in which a 4 kW electron beam is used to melt metal powder in a layer-wise fashion. As this process is relatively new, there have not yet ... -
Particle Size Influence Upon Sintered Induced Strains Within 3DP� Stainless Steel Components
(2003)Three-dimensional printing (3DP™ 1 ) is a layer-by-layer manufacturing process whereby a three-dimensional (3D) component is created by the distribution of a liquid binder onto a powder media. A 3DP™ process using ...