Compression forming using RP
From:
Neal Vail (DaimlerChrysler AG)
Date:
Sunday, May 7, 1995
From: Neal Vail (DaimlerChrysler AG)
To: RP-ML
Date: Sunday, May 7, 1995
Subject: Compression forming using RP
Recently I read a posting from someone looking for a suitable RP process
to make female patterns for plastics forming under pressure. I don't
remember the details or who sent it.
Nonetheless, it appeared very similar to a process developed at Mercedes-
Benz two years ago. In that process they used both LOM and SLA to
fabricate pattern blocks for the forming of metal sheets using
hydrodynamic pressure on the order of 30000psi. The example I saw used 1-
2 mm steel sheet which was formed using the RP patterns and then cut to
tolerence using precision laser cutting. The fabricated object was used
directly on assembly line automobiles.
I don't have the publication handy right now, but it mentioned that LOM
parts held up quite well in this application. I've spoken first hand with
the persons who did this work who indicated both LOM and SLA worked well.
No detailed analysis of accuracy with respect to deformation of the RP
patterns was done, however.
If you would like a copy of the paper let me know. It does not contain
detailed information as it was written and presented by the director of
research at Daimler.
Tschuss
Neal Vail, DaimlerBenz Forschungszentrum
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