Re: AW: Metal Prototype

From: Tom Richards (
Date: Fri May 07 1999 - 21:05:02 EEST

Sorry, I haven't time to discuss this further. Contact the Investment
Casting Institute at 214-368-8896.

At 11:59 AM 5/7/99 +0800, you wrote:
>Dear Tom,
>Thanks for your detail information.
>I still need some advices from you.
>1. Are there any deformation on the thin wall wax pattern during demolding
from the silicone rubber mold?
>2. What sort of ceramic material are you using? Plaster (using water as
binder) or Aluminium Silicate (using chemical as binder)?
>3. Are the ceramic mold easy to break? If not, how can we avoid the demage
on the thin wall metal parts during the breaking of the ceramic mold?
>Thanks in advance for your help.
>>>> Tom Richards <> 05/05 12:02 AM >>>
>We use the lost wax process of precision casting. We choose a casting
>process appropriate for the part, including vacuum assist. The RP pattern
>serves as the wax and is destroyed in the process. We've done many intricate
>thin-walled parts in alloys such as A356 and Zamak-3 for example. We don't
>publish case studies. We are a commercial foundry.
>At 03:47 PM 5/4/99 +0800, you wrote:
>>Can I have more detail about how you make the part? Especially show me some
>successful case studies to give me the confident on this process.
>>>>> Tom Richards <> 05/04 4:30 AM >>>
>>Perhaps we can cast it for you. Attach your zipped binary .stl to me for
>>At 05:01 PM 5/3/99 +0200, you wrote:
>>>> I've heard that it is possible to make thin wall diecasting
>>>> metal prototype by investment casting with vacuum assisted.
>>>> Would anyone kind enough to share their experience,no matter
>>>> good or bad, on this topic with me?
>>For more information about the rp-ml, see
>For more information about the rp-ml, see

For more information about the rp-ml, see

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