[dsg-hallb_rich] [EXTERNAL] Re: request for quote

Dario Orecchini Dario.Orecchini at lnf.infn.it
Mon Nov 15 02:18:06 EST 2021


Hi Marc,
but just a clarification, which kind of technology the company will use,
because the tolerances +-0.125" appears too much large.
Are you sure it's correct?
i suspect that it's would be 0.0125" instead of 0.125"

It's a pleasure hear you again
Dario





Il 2021-11-12 21:32 Marc Mcmullen ha scritto:
> Hi Sandro,
> 
>  The tolerance given is too tight for GandR to provide a quote. They
> propose:
> 
>  Standard for the peripheral and large penetrations would be +-.125''.
> Hole size and pattern +-.032''.
> 
>  Will this work for your design? If so, I believe they will see if
> they can source the aluminum you specified. If they can source the
> materials, they will probably quote the project. So far we requested
> quotes from two companies, GandR is one of them, and the other shop
> declined to quote.
> 
>  The Jlab machine shop estimate is $2000. I would like to get another
> quote just to gauge the Jlab estimate.
> 
>  Regards,
> 
>  Marc McMullen
> 
>  Sr. Instrumentation Designer
> 
>  Detector Support Group
> 
>  (757) 269-7738
> 
>  From: Tomassini Sandro
> Sent: Friday, November 12, 2021 1:43 PM
> To: Marc Mcmullen
> Cc: dsg-hallb_rich at jlab.org
> Subject: [EXTERNAL] Re: [dsg-hallb_rich] Fw: request for quote
> 
>  Hi Marc,
> 
>  The general tolerance should be better than +-0.1 mm.
> 
>  For the aluminum grade consider that Al6082 T6 is good or equivalent.
> 
> 
>  Ciao
> 
>  Sandro
> 
>  Inviato da BlueMail [3]
> 
>  Il giorno 12 nov 2021, alle ore 18:22, Marc Mcmullen
> <mcmullen at jlab.org> ha scritto:
> 
>> Hi Marco,
>> 
>> GandR needs to know the tolerance requirement and the grade of the
>> aluminum.
>> 
>> Regards,
>> 
>> Marc
>> 
>> From: eric at gandrmetals.com <eric at gandrmetals.com>
>> Sent: Friday, November 12, 2021 10:05 AM
>> To: joni at gandrmetals.com <joni at gandrmetals.com>; Marc Mcmullen
>> <mcmullen at jlab.org>; ryan at gandrmetals.com <ryan at gandrmetals.com>
>> Subject: [EXTERNAL] Re: request for quote
>> 
>> Marc,
>> 
>> Marc,
>> I need to know the grade of aluminum you would like and the
>> tolerances we need to hold.
>> 
>> Thanks,
>> 
>> Eric VanDusen
>> 
>> Projects Manager/Estimator
>> 
>> G&R Metals
>> 
>> eric at gandrmetals.com
>> 
>> 757-244-5693 [1]
>> 
>> 810 Kiwanis St
>> 
>> Hampton Va 23661
> 
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