[labnetwork] Wire saw cross sectioning service

[Brian K. Olmsted]

Have you considered wire EDM?

On Thu, Jun 9, 2022 at 18:40 Hathaway, Malcolm R <
hathaway at cns.fas.harvard.edu> wrote:

> This would seem to be a good application for electron beam sectioning or
> milling.
>
> Alternately, I'm told water jet milling can cut pretty thick sections and
> leave a reasonably clean cut.  Not sure if it (the water spraying around)
> would be too violent for your surface to be analyzed.
>
> I'm sure others more knowledgeable will be weighing in...
>
>
> Mac
> Harvard CNS
>
> ------------------------------
> *From:* labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Beall,
> James A. (Fed) <james.beall at nist.gov>
> *Sent:* Thursday, June 9, 2022 3:09 PM
> *To:* labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>
> *Subject:* [labnetwork] Wire saw cross sectioning service
>
> Hello,
>
> We are fabricating micro machined silicon feedhorns (stacked silicon
> platelets that are gold plated) that we would like to have cross sectioned
> to analyze the final horn profile and gold plating quality. The parts a 1.5
> cm x 2 cm x 2 cm and the waveguide ID ranges from 0.5 - 3 mm.
>
> I’ve done this in the past with a low speed Buehler diamond blade saw
> followed by lapping but it is hard to hit the diameter of the waveguide and
> is tedious to lap down.
>
> Ted Pella and Princeton Scientific sell ~$10K wire saws which would
> probably work but for only a couple of samples we are looking for a company
> that might perform this device.
>
> Any recommendations?
>
> Thanks very much,
>
> Jim Beall
> NIST Boulder
> Quantum Sensors Project
> Boulder, CO
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-- 
Brian K. Olmsted
Associate Director of Laboratory Operations
University of Minnesota | MNC
www.mnc.umn.edu
612.626.3287
olms0025 at umn.edu
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