HQ & LHQ End Parts Miao Yu Fermilab 08/27/12. HQ parts All the spacers are arriving within a week....
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Transcript of HQ & LHQ End Parts Miao Yu Fermilab 08/27/12. HQ parts All the spacers are arriving within a week....
HQ & LHQ End Parts
Miao Yu
Fermilab
08/27/12
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HQ parts
All the spacers are arriving within a week.
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HQ L1 RE Key (Pole)
Nominal thickness: 14.714 mm (0.5793 inch)Measure: 0.579 inch ~ 0.581 inch
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Saddle
• Grind by hand due to the late awareness• Not satisfied• Our techs will buff the edges (20 min/part)
~14.0 mm vs. 15.022 mm~0.5 mm unsupported strands during w/c/r
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Spacer
The spacers were fabricated after the awareness.
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Plasma CoatingVendor: White Engineering, PAA100 coating passes the curing, reaction and thermal cycle
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Thickness measurement
• 5 random points on OD, BEND and side surfaces• Fisher dual scope
0 2 4 6 8 10 122
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OD surface Coa
ting
Thi
ckne
ss(m
il)
0.5 1 1.5 2 2.5 3 3.5 4 4.52
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4
5
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Bend surface
Coa
ting
Thi
ckne
ss(m
il)
0 1 2 35
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8
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Side surface
Coa
ting
Thi
ckne
ss(m
il)
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Thickness measurement
• 5 random points on the coating surface
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Quotation 1
• Equipped with robotic head• +/- 1mil on priority surface• +/-3mil on curved surface • Response: very slow• Price: high• Delivery: slow
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Quotation 2
• Coat manually• +/- 3mil tolerance• Response: fast• Price: low• Delivery: fast
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Quotation 3
• Equipped with robotic head• +/- 1mil on regular surface• +/-3mil on BEND surface • Response: fast• Price: low• Deliver: fast
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Plan
• 6 middle pole pieces (one LHQ coil) to each vendor
• Verify the thickness• Measure the coating strength as the parts
received and after curing, reaction and thermal cycles. (no impregnation test)
• Vendor selection