Re: some questions about RP technologies

From: Amy Hu <>
Date: Mon Apr 05 2004 - 02:55:38 EEST

Dear Paul,

  Thanks a lot for your response.

  You said it. My question is very general. From the theory of additive
fabrication, all RPTs can produce functional gradient material produts or
heterogeneous material object which material composition can vary by given
pattern. Actually, by then there are only a few RPTs which can complete this
task, to name one I have knew is LENS. LENS can fabricate the functional
gradient material by controlling the power of laser and powder deposition
speed. But this process is random and the pattern of material composition
only can be know after fabrication. What I want to know is if I have
designed ah heterogeneous objects which have a specified material
distribution, how RPTs can fabricate automatically? What kind of processes
and software have to be designed or modified spefically? I am not sure
whether I have make my question clear. Anyway, thanks for your help.

----- Original Message -----
From: "Paul Suomala" <>
To: "Amy Hu" <>
Sent: Sunday, April 04, 2004 3:57 PM
Subject: Re: some questions about RP technologies

> Amy Hu wrote:
> > Hi all,
> >
> > How are you doing?
> >
> > I am a graduate student in Clemson University. I have some problems
> > about how to fabricate heterogeneous metal parts by using LENS or
> > other possible RP technologies. If I had a part with specified
> > material composition (have some gradient locally), are there any solid
> > modeling software can represent this kind of parts, how to transfer 3D
> > solid model to neutral format such as STL or others? If somebody has
> > this kind of experience, could you please give me some hints?
> >
> > Thanks a lot and have a good day.
> >
> > Best Regards
> Your questions seem rather general. Have you searched in your own "back
> yard" ?
Received on Mon Apr 05 02:20:22 2004

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