NASA has an ongoing project in the direct production of Wax
injection molds using RP technologies. Curently we have
demonstrated sucessful fabrication of wax injection molds using
FDM, LOM, and SLA. With all of the techniques the principal problem
we have encountered is the retention of heat by the mold. (i.e.
large bulky wax parts dont want to cool very quickly).
We are currenlty experimenting with PVD coatings to increase life
and increase thermal transfer. We have not yet published stuff but
we are expected to by our management.
Floyd Roberts
205-544-1967
floyd.roberts@msfc.nasa.gov
_______________________________________________________________________________
Subject: Rapid Tooling
From: KnudsenC@bdva.com at SMTP
Date: 6/21/96 11:42 AM
I'm very interested in finding any articles, published or unpublished, on
wax injection mold tools made by any rapid prototype process.
>From what I have found so far, the use of rapid prototyping processes to
generate wax injection tooling has been by indirect routes (i.e. using the
rp part as a pattern to create spray metal tooling etc.)
Any information on indirect or direct methods of using rp processes would
be greatly appreciated.
Charles Knudsen
knudsenc@et.byu.edu
This archive was generated by hypermail 2.1.2 : Tue Jun 05 2001 - 22:37:26 EEST