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    WP5.2 - TCLPX/TCTPXH Prototypes Production Follow-up

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    MINUTE 46

    Mechanical table assembly:

    • Cycling ongoing but under visual inspection for the moment

    TCC:

    • Leak on the rigid connection between test bench and tubes
    • Thermocouples arriving in 1 weeks

    Design:

    • Jaw lifting tool production ongoing by STI
    • Jaw and tank procedure to update in 4 weeks
    • 0.05 flatness in CZ for LHCTCTPXH_0021 can be enlarged, but we gain almost nothing for prod so we stay as we are

    Absorber materials update:

    • Check the Carlotta’s attached document – Some work to improve the cleanliness of the process
    • Delays need to be checked

    VSC:

    • Waiting for costs and delays
    • Design modifications due to holes position – 3D sent to Luca
    • Check an arrangement between STI and VSC to order one time for all the components
    • 15th of July reception of jackets
    • Prod of autoregulated testbench for the serie

    Production:

    • Bellows on shaft end by Tuesday, then cleaning and FE end of next week, welding on tank in 3 weeks then leak tests
    • Contouring tank plate done, cleaning done, welding FE next week
    • First batch of jaw parts sent to STI
    • Re-machine 6 RF finger of each reference to be tested
    • Beam pipes under metrology before carbon deposit
    • BPM flange at 40/30 for leak tests for the repaired ones, now only 1 leak, to be repaired
    • Cooling pipes ok even with 0.2mm of flatness on the border. 2 last in metrology then leak test, ultrasound report 0.7mm mini thickness. Action for Dylan : check the mini thickness on the drawings, Fede can try to have the information
    • LHCTCLPX__0021 x2 to metrology, LHCTCLPX__0020 x2 50% done, then metrology for 3 weeks
    • LHCTCTPXH_0024 x2 to cleaning, accepted even being out of tolerance in the functional position + LHCTCTPXH_0072 75% done, end beginning of next week and LHCTCTPXH_0027/28 waiting, available in 6 weeks

    Additional screws:

    • We now have 4x3 screws: Rollvis, Schaeffler, Ewellix, and maybe Moog

    Graphite tapering:

    • A quotation of 4 more is sent to Graphitech

    Update on planning:

    Update for the serie:

    • Update the leak test tool for bellow production for the serie
    • Nourrice to re-design because there is too much leaks and not easy for pumping

    Link to the EDMS minutes : https://edms.cern.ch/ui/#!master/navigator/document?D:100889947:100889947:approvalAndComments

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