2003 / Solid Freeform Fabrication Proceedings
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Author K. Lappo, B. Jackson, K. Wood, D. Bourell, J. J. Beaman Mechanical Engineering Department Laboratory for Freeform Fabrication The University of Texas at Austin, Austin TX 78712
Source Solid Freeform Fabrication Proceedings, 2003, pp 109-119.
Abstract Since the introduction of Solid Freeform Fabrication technologies, processing capabilities have evolved to include simultaneous processing of multiple materials in a single component. Selective Laser Sintering (SLS) technology advancement research is being conducted at the University of Texas at Austin to incorporate discrete multiple material processing. Multiple material freeform components are manufactured with material regions separated by discrete or blended (functionally graded) interfaces. An application for discrete M2SLS processing is found in the production of complex sand core geometries for hollow features casting. Materials research was performed to identify a support material which burns out during the core firing with little or no residue. A Design of Experiments was performed to determine the effectiveness of electrostatics as a selective powder removal process. Feasibility of producing components by means of discrete M2SLS was proven through the fabrication of simple geometry tube s. (Auth abstract) [References: 9] XX
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
or contact:
The University of Texas at Austin
Laboratory for Freeform Fabrication / Texas Materials Institute
Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
Austin, TX 78712-1063 USA
512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu