PHIL DICKENS wrote:
>
> Dear Jody,
> We have had much more success with SLA moulds. We have only moulded
> polypropylene but have had tools produce over 500 parts without
> damage.
> We are running a new SLA tool on Monday which is the most complicated
> I have seen yet. It is for producing a very complex comb/brush using
> a double cavity insert. The total shot weight is 0.080 kg.
> We are hoping to get 1,000 parts out of this new tool so we are
> keeping are fingers crossed.
> It really depends on the moulding machine operator. If a mistake is
> made then we have early failure.
>
> Phill Dickens
>
> University of Nottingham
>
> > Date: Thu, 20 Nov 1997 18:42:09 -0600
> > From: "MET-L-FLO INC." <metlflo@mw.sisna.com>
> > To: Ingrid Timmel <a055328@fpu013.fpp.com>
> > Cc: rp-ml@bart.lpt.fi
> > Subject: Re: Tooling Resins vs. SLA
>
> > 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
> >
> >
> >
> >
> >
> >
hi phil
bye phil
martin
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