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

[Tomassini Sandro]

Hi Marc, 
I will check with Dario and Marco if  we can accept those tolerances. The risk is that some element does not fit the panel. 
In my opinion they should use  water jet to produce the panel. 
For the aluminum alloy if they have problem to procure the one I indicated or it is expensive, than they can use any aluminum alloy already have in house. 
Cheers
Sandro 

⁣Inviato da BlueMail ​

Il giorno 12 nov 2021, 21:32, alle ore 21:32, Marc Mcmullen <mcmullen at jlab.org> 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<mailto:sandro.tomassini at lnf.infn.it>
>Sent: Friday, November 12, 2021 1:43 PM
>To: Marc Mcmullen<mailto:mcmullen at jlab.org>
>Cc: dsg-hallb_rich at jlab.org<mailto: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<https://urldefense.proofpoint.com/v2/url?u=https-3A__bluemail.me&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=hQJSuIbzwxGOX7LZbVne0gHeC6U5hlDu99LTH_I02ZM&m=OUyoudXQpK7XZNAlL5lQfRH3SAV5ZfZuQWtrgeHUvDGhiJE-4dqGCImNUMEUrHFB&s=wXPC1ACZRRFEj4KozhXt79zXU0c8kPMFeQzITyAe7Ck&e=>
>Il giorno 12 nov 2021, alle ore 18:22, Marc Mcmullen
><mcmullen at jlab.org<mailto: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<mailto:eric at gandrmetals.com>
>
>757-244-5693<tel:757-244-5693>
>
>810 Kiwanis St
>
>Hampton Va 23661
>
>
>
>dsg-hallb_rich mailing list
>dsg-hallb_rich at jlab.org
>https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rich
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