[Pansophy] L2HE-INSP-FWM-R2 Ready for Approval

[Allen Samuels]

Okay good. In that case, as soon as everyone’s in agreement on the polish, I’ll route.

Allen

From: Gary Cheng <cheng at jlab.org>
Sent: Wednesday, June 8, 2022 10:13 AM
To: Allen Samuels <samuels at jlab.org>; Tiffany Ganey <ganey at jlab.org>
Cc: John Hogan <hogan at jlab.org>; George DeKerlegand <georged at jlab.org>; pansophy <pansophy at jlab.org>
Subject: Re: L2HE-INSP-FWM-R2 Ready for Approval

Tiffany explained the reason for using 32 in Step 2. That sounds good to me. My only other comment is on the "Polish" as being unclear
On 6/8/2022 10:03 AM, Allen Samuels wrote:
Tiffany,

The traveler looks good from the standpoint of getting it into pansophy, but I don’t want to send it out for approval if you all are still discussing it. If you all are in agreement, let me know and I’ll route it as is. If not, let me know when you are and put a revised version in ready for approvals if any changes are needed.

Allen

From: Pansophy <pansophy-bounces at mailman.jlab.org><mailto:pansophy-bounces at mailman.jlab.org> On Behalf Of Tiffany Ganey
Sent: Wednesday, June 8, 2022 9:27 AM
To: Gary Cheng <cheng at jlab.org><mailto:cheng at jlab.org>
Cc: John Hogan <hogan at jlab.org><mailto:hogan at jlab.org>; George DeKerlegand <georged at jlab.org><mailto:georged at jlab.org>; pansophy <pansophy at jlab.org><mailto:pansophy at jlab.org>
Subject: Re: [Pansophy] L2HE-INSP-FWM-R2 Ready for Approval

The vendor is still being asked to make the port window to the drawing specification (16 uinch).  Based on FNAL’s input, I revised the traveler (which is for JLab use only and is not provided to the vendor) to allow for 32 as a surface finish.  This is still a more polished finish than the FNAL requirement of 64, but will allow us to evaluate port windows that might be questionable to verify if they are acceptable for use.

Tiffany Ganey

From: Gary Cheng <cheng at jlab.org<mailto:cheng at jlab.org>>
Sent: Wednesday, June 8, 2022 9:19 AM
To: Tiffany Ganey <ganey at jlab.org<mailto:ganey at jlab.org>>
Cc: George DeKerlegand <georged at jlab.org<mailto:georged at jlab.org>>; John Hogan <hogan at jlab.org<mailto:hogan at jlab.org>>; pansophy <pansophy at jlab.org<mailto:pansophy at jlab.org>>
Subject: Re: L2HE-INSP-FWM-R2 Ready for Approval

Hi Tiffany,

I took a glance at the R2. A couple comments:

1. Step 2 says 32 Polish not 64 uinch as mentioned in revision notes
2. Not sure if "Polish" is an accurate unit/jargon that everyone understands. Suggest to use "uinch" or "microinches" instead. On some drawings, surface finish is specified in micrometers so "Polish" may not be clear.

I'd suggest that we don't let vendor know of our internal hard limit on the surface finish, i.e. 64 uinch, so that they don't deliver windows with poor finish.

Thanks,
Gary
On 6/8/2022 8:29 AM, Tiffany Ganey wrote:
Good morning Pansophy Team,

A new revision of L2HE-INSP-FWM is in the Ready for Approvals folder.  The traveler was revised based on the lessons learned from the inspection of the first two manifolds.

Added Step 1 Note on acceptable deviations from the Port Window Drawing (F10040909) - these are normal deviations for a stock blank flange. Added Step 1 Images Comment field. Added Step 2 instructions on when an NCR is needed for surface finish - based on input from Brian Hartsell (FNAL) and FNAL's Vacuum Window Safety Chapter requirement for surface finish of at least a 64 uinch. Added Step 3 instructions on dimensions requiring an NCR - since this manifold is removed from the cryomodule prior to shipment to SLAC, only dimensions critical to vacuum safety will require an NCR.

Tiffany Ganey



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