Have a look at this. Wouldn't be surprised to see foundries doing this for low
volumes of castings. If PLA can be injection, blow or roto molded to make the
shells, it could be used for high volume production with fewer rejected
castings since there's no chance of wrecking the sand molds removing patterns.
Lost foam has been done for quite a while but the surface of the parts looks
like aluminum styrofoam.
New 3D Printed Lost Shell Sand Casting Technique Offers Fine Detail in Metal
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New 3D Printed Lost Shell Sand Casting Technique Offers Fine Detail in Metal
We have the privilege of viewing many action-packed videos from innovators
showing what their new creations are ... | |
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From: andy pugh <[email protected]>
To: Enhanced Machine Controller (EMC) <[email protected]>
Sent: Wednesday, August 17, 2016 3:29 AM
Subject: Re: [Emc-users] More news & ? from WV.
On 16 August 2016 at 23:49, Gene Heskett <[email protected]> wrote:
> The local casting shop seems to be using machined alu forms, and I have
> seen no evidence they can take a pattern & do all the work to make it
> sand castable. I haven't toured the whole place, so I've not seen the
> furnace, just the casting finishing. Wheels hubs for IH & I believe
> White truck tractors.
They are probably using match-plate patterns in a continuous line and
won't be wanting to do one-offs.
However, for any foundry using cope-and-drag there is no difference
between making 1 and making 100, the process per casting is identical.
Some possibilities here:
http://wiki.vintagemachinery.org/FoundrySources.ashx
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