Re: Alumina and SiC printing with zcorp's Z402

From: AL A HASTBACKA (AHASTBACKA@prodigy.net)
Date: Thu Jan 13 2000 - 05:20:12 EET


I thought that the ceramic applications of the MIT technology were licensed
to Soligen. Am I wrong?

Al Hastbacka
----- Original Message -----
From: Alex Salvi <ASalvi@MMCCINC.COM>
To: 'Brock Hinzmann' <bhinzmann@sric.sri.com>; Rapid Prototyping Mailing
List (E-mail) <rp-ml@bart.lpt.fi>
Cc: Jim Cornie <JCornie@MMCCINC.COM>
Sent: Wednesday, January 12, 2000 4:07 PM
Subject: RE: Alumina and SiC printing with zcorp's Z402

> Brock,
> thanks for the information. We are in fact working with aerospace firms on
> both rp of alumina and rp of SiC. I would really appreciate it if you
could
> get me a contact name at SRI International.
> Sincerely,
> Alex Salvi
>
> -----Original Message-----
> From: Brock Hinzmann [mailto:bhinzmann@sric.sri.com]
> Sent: Wednesday, January 12, 2000 1:17 PM
> To: Alex Salvi
> Subject: RE: Alumina and SiC printing with zcorp's Z402
>
>
> Alex,
>
> SRI International (formerly the Stanford Research Institute) has
> developed a machine that prints parts from virtually any powder starting
> material,
> but the emphasis has been on ceramics for DoD applications. Silicon
> nitride has been the primary material, but my understanding is they also
> printed some silicon carbide parts. The Si3N4 parts were for gas turbine
> engines
> and were tested by Allison (now RR) in testing chambers under high-temp
> operating conditions and were found to be as good as or better than the
> same parts made by conventional methods, in terms of density, operating
> temperature capabilities, and several other characteristics. Accuracy is
> probably not what is needed in some applications, but the machine uses a
> microelectromechanical optical system that has potential for greater
> refinements.
>
>
> The application you mention is not one they are working on, although
> interest has been expressed in this area by other aerospace firms (besides
> RR).
>
> As far as I know, the current status of the program is to build and sell
> a few beta test machines (three have been ordered, at about $50k each). I
> can connect you, if you are interested.
>
> Brock Hinzmann
> Business Intelligence Center
> SRI International
>
> Alex Salvi wrote:
> >Hello Dr. Ana Garcia (and anyone else interested of course)
> >I have been reading the 1999 postings to the mailing list and two emails
> >that you sent caught my attention. In one you said you were doing
> research
> >on rapid prototyping devices to do work with AlSiC and in the other you
> >mentioned the Z402 3d printer used for casting joints of the millenium
> man.
> >I am currently using our Z402 printer to print both SiC as well as
> Alumina
> >parts which we cast to make metal matrix composites. Our alloys are
> >aluminum, copper and magnesium.
> >If you or anyone you know is working on this I thought we might share
> some
> >ideas.
> >Sincerely,
> >
> >Alex Salvi
> >Chief Design Engineer
> >Metal Matrix Cast Composites, Inc.
> >101 Clematis Ave.
> >Waltham, MA 02453
> >Phone: (781) 893-4449 x25
> >Fax: (781) 893-7230
> >E-mail: asalvi@mmccinc.com
> >Web: www.mmccinc.com
> >
> >
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> >From: Alex Salvi <ASalvi@MMCCINC.COM>
> >To: "Rapid Prototyping Mailing List (E-mail)" <rp-ml@bart.lpt.fi>
> >Subject: Alumina and SiC printing with zcorp's Z402
> >Date: Wed, 12 Jan 2000 12:02:03 -0500
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