1999 / Solid Freeform Fabrication Proceedings
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Author Jeffery L. Norrell, Kristin L. Wood, Richard H. Crawford, The University of Texas at Austin
Source Solid Freeform Fabrication Proceedings, 1999, pp 247-254
Abstract In an effort to produce higher quality Selective Laser Sintering (SLS) parts, a number of approaches have been taken. One such approach is the use of in-bed metastructures, such as tortillas and canisters. In past work, these metastructures have produced changes in part quality, but only qualitative analysis has been done. Using a model created during previous work, a numerical study of these in-bed metastructures is undertaken, with the goal of systematically determining the thermal effectiveness of the various structures. The thermal behavior of in-bed structures subjected to mixed mode convection and conduction is then determined. Results demonstrate that in-bed structures can be designed to spatially affect in-bed thermal transfer, providing SLS users the capability to remove or retain heat as a part's local geometry demands. (Auth abstract) [References: 15]
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
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Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
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512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu