Our experience using any cast composite resin systems...
Success is part geometry dependent, part size dependent, molding resin
processing pressure dependent and molding resin processing temperature
dependent. There are many more factors which affect outcome.
We seen molds blow apart on the 2nd shot and others produce in excess
of 250 shots...
I cannot imagine SLA resins having any better success ratios then
epoxy systems.
Jim Williams
Paramount Industries, Inc.
______________________________ Reply Separator _________________________________
Subject: Re: Tooling Resins vs. SLA
Author: "MET-L-FLO INC." <metlflo@mw.sisna.com> at INTERNET
Date: 11/20/97 8:56 PM
DEAR INGRID,
We did some R&D with SLA molds and found they wont last more than 5 shots in an
injection press with production material. The same study showed a high heat
epoxy
mold lasted about 10 shots. If anybody has any information about this I would be
interested to hear it as well.
Best Regards to All,
Jody Hudrick
MET-L-FLO INC.
Ingrid Timmel wrote:
> What is the major advantage of making a SLA mold for injection parts over
> casting a mold from heat-resistant epoxy ?
> It takes less time to make, clean up the part and cast the mold, than it would
> to set up everything for making a mold from SLA.
> Thanks in advance.
>
> --
> Ingrid Timmel
> itimmel@fpp.com
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