Re: Re[4]: PART CLASSIFICATION, AIM, Bridge

From: Michael Wilson (art2part@unixg.ubc.ca)
Date: Sun Dec 22 1996 - 01:38:27 EET


Hi Brian and Group Members,
        Rapid Tooling, Bridge Tooling, AIM tooling, Rapid Mold Manufacturing
or Rapid Mould (depending on my cultural slant) Manufacturing? All refer to
an "addition" (different from subtractive milling) type process to produce
mold halves for injection molding. Certainly by our experience and from what
I read here, the trend is to use photoformed resins as the basis for the
"addition" process.
        We have been doing AIM tooling and similar processes for more than
two and a half years and called it Rapid Mold (Mould) Manufacturing RMM. In
July, 1995 we produced fifty polycarbonate parts (not GF) from mold halves
inserts of 5170. We did not use the protective copper coating we developed
with the National Research Council of Canada earlier in that year.
        I silently listened during the last debate on the correct name for
Rapid Prototyping and certainly don't wish to spark that debate again. I
would instead ask that before a new process name is introduced to our group
that the person who introduces that name specify how this is different from
existing processes.

On a similarly important note: I wish you all a Merry Christmas and all the
very Best for 1997.

Mike

-----------------------------------------
Michael Wilson, Project Manager RMM,
Polycarbonate Parts in "ACES build" mould
Aurora Search Inc. (Canada)
Email: art2part@unixg.ubc.ca
Web:http://www.interchg.ubc.ca/art2part
voice:604-644-1829 fax:403-282-1238
-----------------------------------------

At 07:23 PM 12/20/96 -0500, you wrote:
>Yakov,
>
>We are doing AIM tooling at the RPMI (Rapid Prototyping and Manufacturing
>Institute) at Georgia Tech. We have shot 30% GF Polycarbonate into a mold
>built on an SLA 250. We were able to get ~15 parts before the mold began
>to significantly break down due to heat. I would anticipate that many
>more parts could be shot if more care were taken with the mold.
>
>My project for the upcoming quarter is the developement of 'embedded'
>ejection systems for inserts created via SLA. (If anyone out there knows
>of any existing progress in this area I would be glad to here from you).
>Feel free to contact me if you have specific questions.
>
>-Brian
>
>Brian David VanHiel
>340193 Georgia Tech Station
>Georgia Institute of Technology, Atlanta Georgia, 30332
>e-mail: gt0193a@prism.gatech.edu
>
>On Thu, 19 Dec 1996, Yakov Horenstein wrote:
>
>> At 6:37 PM 18/12/96, jim@paramountind.com wrote:
>> _________________________________
>> >Subject: RE: Re[2]: PART CLASSIFICATION
>> >Author: krugerb@3dsystems.com ("Kruger, Bob") at INTERNET
>> >Date: 12/16/96 5:03 PM
>>
>> > 2) A new
>> >process called Direct AIM (Direct ACES Injection Molding) is rapidly
>> >becoming popular among SL (stereolithography) users. The process utilizes
>> >cores and cavities build directly on an SLA using the ACES build style. In
>> >one particular project, the customer was able to shoot approximately 200 40%
>> >glass-filled nylon parts in a two day period. While the process itself is
>> >still being improved, for a handfull of users it has already proven itself
>> >to be a very rapid way to prototype tooling for many production plastics.
>>
>> Where can I find more info. on this? 3D's website doesn't mention it.
>>
>> ----------------------------------------------------------------------------
>> -----
>> Yakov Horenstein Tel: +39 (0)2 65 35 12
>> Milano, Italy Fax: +39 (0)2
2900 6208
>> ----------------------------------------------------------------------------
>> -----
>>
>>
>>
>
>
>
-----------------------------------------
Michael Wilson, Project Manager RMM,
Polycarbonate Parts in "ACES build" mould
Aurora Search Inc. (Canada)
Email: art2part@unixg.ubc.ca
Web:http://www.interchg.ubc.ca/art2part
voice:604-644-1829 fax:403-282-1238
-----------------------------------------



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