Difference between revisions of "Dec 17, 2008 BCAL Construction"
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# Tim discussed lead vendors- 1 of 3 can do .5mm thick lead. Thay can cut to eidth and length. The vendor (Walker Casting) says it will be cheaper to have 35# rolls than package in flats in crate ($4 - $5 per lb.). He will give a better quote soon. George to supply contact for another vendor they use (Vulcan). | # Tim discussed lead vendors- 1 of 3 can do .5mm thick lead. Thay can cut to eidth and length. The vendor (Walker Casting) says it will be cheaper to have 35# rolls than package in flats in crate ($4 - $5 per lb.). He will give a better quote soon. George to supply contact for another vendor they use (Vulcan). | ||
# Discussed Dan's measuring block for checking dimensions after machining wedge. It appears resonable and requires the support tube to be cut 2 inches shorter at each end and have machined faces. It was also discussed the possibility of having to skim cut the top and bottom surfaces of the support tube (5"x3+ tube with 1/4" wall). There are some concerns that this will stress relieve and warp the tube. Zisis will have the tube he has measured, skimmed and measured again at Ross. | # Discussed Dan's measuring block for checking dimensions after machining wedge. It appears resonable and requires the support tube to be cut 2 inches shorter at each end and have machined faces. It was also discussed the possibility of having to skim cut the top and bottom surfaces of the support tube (5"x3+ tube with 1/4" wall). There are some concerns that this will stress relieve and warp the tube. Zisis will have the tube he has measured, skimmed and measured again at Ross. | ||
| − | # More thought and discussions to be had on the go-nogo gage for the wedges. Dan proposes that the machine head is to be used with an indicator to measure the wedge after machining. Gage may be redundant but can possibly be used at JLAB for incoming inspection. Dan asked the question of surface finish requirements for the lead came up. Tim stated that 250 uin rms would be fine. Also, it was discussed that if the tool was worn or dull and it had to be replaced midstream, it would be ok to take a deeper cut on the surface (<1mm) and make up for it on the other side. | + | # More thought and discussions to be had on the go-nogo gage for the wedges. Dan proposes that the machine head is to be used with an indicator to measure the wedge after machining. Gage may be redundant but can possibly be used at JLAB for incoming inspection. Dan asked the question of surface finish requirements for the lead came up. Tim stated that 250 uin rms would be fine. Also, it was discussed that if the tool was worn or dull and it had to be replaced midstream, it would be ok to take a deeper cut on the surface (<1mm) and make up for it on the other side. Gilbert brought up that it was critical that the machine at Ross be repeatable from batch to batch and suggested a jig to set the angle of the head so it is repeatable. Dan said thay use a sign plate and will be discussed with Ross. |
| − | Gilbert brought up that it was critical that the machine at Ross be repeatable from batch to batch and suggested a jig to set the angle of the head so it is repeatable. Dan said thay use a sign plate and will be discussed with Ross. | + | |
# Zisis and co. would sleep better if the support tube stayed attached to the wedge all the way to JLAB. | # Zisis and co. would sleep better if the support tube stayed attached to the wedge all the way to JLAB. | ||
Revision as of 08:09, 18 December 2008
Contents
Teleconference Instructions
Meeting time 13:00-14:00 Newport News / 12:00-13:00 Regina / 11:00-12:00 Edmonton
- +1-800-377-8846 : US
- +1-888-276-7715 : Canada
- +1-302-709-8424 : International
- then enter participant code: 39527048# (remember the "#")
Quick Reference Links
Documents to Review
- Dan's corner block: imageDan's updated measuring layout
- Updated Wedge drawing: Latest wedge machined dwg
- Updated Base plate drawing: Latest base plate dwg need to remove inserts for machining
Action Item List
-
Tim will supply updated drawings and post on DocDB by this friday - Gilbert will submit a list of all tools required and cost estimates by middle of next week.
- Gilbert will send a drawing of the machining set up for jlab to reference.
- Detailed schedule for preparation for module production (Gilbert).
- Tim to supply 3d stp/igis files to Regina/Alberta.
- In progress: George submitted a QA plan last month. Needs to be reviewed by Tim and Elke.
- Manpower
- Construction Manager: Progress at UofA on job description, job ad
- Co-Op job ads
Tentative Agenda
- Announcements: Pb-vendor responses (Tim)
- Corner block concept: indexing during machining at Ross (Dan)
- Go-nogo Gauge: discuss concept/implementation (Jan/Gilbert)
- Installation: how to lift matrix from Al base plate off steel beam
- Latest changes to drawings
- Review action item list
- Other business
Minutes
Attendees: Regina - Zisis, George, Dan, Keith Alberta - Gilbert, Jan, JLAB - Tim, James
- Tim discussed lead vendors- 1 of 3 can do .5mm thick lead. Thay can cut to eidth and length. The vendor (Walker Casting) says it will be cheaper to have 35# rolls than package in flats in crate ($4 - $5 per lb.). He will give a better quote soon. George to supply contact for another vendor they use (Vulcan).
- Discussed Dan's measuring block for checking dimensions after machining wedge. It appears resonable and requires the support tube to be cut 2 inches shorter at each end and have machined faces. It was also discussed the possibility of having to skim cut the top and bottom surfaces of the support tube (5"x3+ tube with 1/4" wall). There are some concerns that this will stress relieve and warp the tube. Zisis will have the tube he has measured, skimmed and measured again at Ross.
- More thought and discussions to be had on the go-nogo gage for the wedges. Dan proposes that the machine head is to be used with an indicator to measure the wedge after machining. Gage may be redundant but can possibly be used at JLAB for incoming inspection. Dan asked the question of surface finish requirements for the lead came up. Tim stated that 250 uin rms would be fine. Also, it was discussed that if the tool was worn or dull and it had to be replaced midstream, it would be ok to take a deeper cut on the surface (<1mm) and make up for it on the other side. Gilbert brought up that it was critical that the machine at Ross be repeatable from batch to batch and suggested a jig to set the angle of the head so it is repeatable. Dan said thay use a sign plate and will be discussed with Ross.
- Zisis and co. would sleep better if the support tube stayed attached to the wedge all the way to JLAB.
