D Lynn BNL LBNL Mechanical Meeting Sep 2012 1 US Stave Fabrication Sequence Differs mostly from UK sequence in that we premachine foam and make foampipe assembly Do we need identical standardized assembly of stave core in production ID: 278977
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US Stave Core Production
D. Lynn (BNL), LBNL Mechanical Meeting, Sep 2012
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US Stave Fabrication Sequence
Differs mostly from UK sequence in that we pre-machine foam and make foam-pipe assembly
Do we need identical standardized assembly of stave core in production?
UK Foam Split
US Foam Split
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LBNL fabricates facings (either standard or co-cured). Ships to BNL
BNL glues CF tubes, foam-pipe assembly, honeycomb to first facing, and end closeouts . Ships to Yale
Yale grinds honeycomb. Ships to BNL
BNL glues last facing Characterization (or QA) at BNL
Assembly Sequence and Institutions for US Stave Cores Built Up to Now
Expect facings will continue to be fabricated at LBNL
All of the other steps could in principle be done at any of these institutions
E.g. at present we do grinding at Yale as they have access to own grinder, but at BNL our central machine shops can do it (for prototyping, they are way too expensive!)
Is it possible to skip grinding in future? (or perhaps use corrugated core??)
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Old Gantt Chart (2009) for Stave Core Assembly—I have not updated it
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Old Gantt Chart (2009) for Stave Core Assembly—I have not updated it
Chart implied ~ 3 weeks assembly and QA (not including facing fabrication).
Expect to maintain a throughput of 1/day (although maybe could do 2/day without much additional effort?).
Seems likely need at most two main centers of production (US and UK).
Where in US to make stave cores will require a comprehensive look at where hybrids, modules, stave cores, and final module mounting and stave testing will be done to maximize utilization of resources within US community – also will depend upon funding.
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