> Bruce
> We have manufactured SLA nozzles (venturi barrel type) for cryogenic
> blasting and used these in house to assess design performance at
> approaching Mach 1.5 (shadow shock wave analysis). No plating was used
> and no damage inflicted. Now this isn't to say that it wouldn't be
> beneficial in your case but try an untreated sample first.
> Regards
> Ben Halford
> PERA Technology
> England
> ben.halford@pera.com
> -----Original Message-----
> From: Bruce E. LeMaster [SMTP:LeMaster@artcorp.com]
> Sent: 10 December 1998 20:27
> To: rp_ml Posting
> Subject: SL Epoxy and supersonic air flow
>
> Hello all,
>
> We have a customer that would like to have a SL
> model made and then coated with an
> as-yet-to-be-determined material and actually test
> the model in supersonic flight. We have in the
> past plated SL parts with nickel and chrome for
> use in wind tunnels (for the same customer) but I
> have no idea what goes on at supersonic flows.
>
> Do any of you have experience with SL parts at
> supersonic airflow conditions? Any thoughts on
> plating the SL part with some combination of
> metals that might strengthen it to withstand the
> test environment?
>
> Thanks in advance.
>
> Bruce E. LeMaster
> --
> Applied Rapid Technologies Corporation
> 265 Cambridge Street, Suite 100
> Fredericksburg, Virginia 22405
> (540) 371-1100 / (540) 371-4100 fax
> Web Page URL: http://www.artcorp.com
>
>
>
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