1999 / Solid Freeform Fabrication Proceedings
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Author W. Meiners, C. Over, K. Wissenbach, R. Poprawe, Fraunhofer Institute for Laser Technology
Source Solid Freeform Fabrication Proceedings, 1999, pp 655-662
Abstract For the direct manufacture of metallic prototypes and tools Fraunhofer ILT is developing the new rapid prototyping (RP) process Selective Laser Powder Remelting (SLPR). The objective of this development is to manufacture metallic prototypes and tool prototypes out of serial materials with a density of 100 %, thus the manufactured parts can be immediately installed without time consuming post-processing like e.g., infiltration. Therefore, basic investigations for process analysis are being carried out to attain a fundamental understanding of the process. Process parameters have been determined and process procedure strategies have been developed to manufacture parts of different materials with a density greater than 99 % without any binder component. The materials under investigation are stainless steel, tool steel, aluminum alloys and titanium alloys. Due to the high density the tensile strength and yield strength of the parts produced by SLPR are in the range of the specification of the bulk mate rial. Based on these results a prototype plant for SLPR is being designed and realized. With this machine complex functional prototypes as well as prototype mold inserts for injection molding and die casting can be manufactured out of different materials. (Auth abstract) [References: 8]
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
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512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu