1995 / Solid Freeform Fabrication Proceedings
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Author J.A. Todd, S.M. Copley, M.I. Yankova, F. Fariborzi, K. West, Illinois Institute of Technology
Source Solid Freeform Fabrication Proceedings, 1995, pp 305-313
Abstract A versatile, automated, laser-based system, capable of producing complex three- dimensional shapes of ceramic and ceramic composite materials, through either controlled layer ablation or solid freeform fabrication, is currently under development. The system comprises a 1.2 kW C02 1aser, positioning system, beam scanner, non-contacting positioning sensor, beam conditioner and CAD/CAM system. This paper reports progress in relating machine parameters (scan rate, feed, beam power and polarization) to process measurables (material removal rate and surface roughness), and demonstrates the potential for rapid prototyping and direct manufacturing of: (a) rotationally symmetric components based on ablative ceramics such as Si3N4, and (b) graphite fuel cell plenums. (Auth abstract) [References: 24]
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