1995 / Solid Freeform Fabrication Proceedings
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Author Christian Nelson, Kevin McAlea, Damien Gray, DTM Corporation
Source Solid Freeform Fabrication Proceedings, 1995, pp 159-169
Abstract SLS (R) part accuracy is influenced by a number of machine and material characteristics. Some of the most significant sources of error are associated with laser beam positioning (static and dynamic) on the part bed surface and uncertainty in the calibration factors used to compensate for material shrinkage and growth as well as the finite width of the laser beam. Another source of error is the minimum resolution of the process, which is a dependent on the particle size and shape of the material. In this presentation, technical background on these issues will be provided. In addition, part data obtained with a number of SLS materials demonstrating improved accuracy obtained through machine modifications and improved calibration methods will be described. (Auth abstract) [References: 13]
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