CERN PH/DT 12/05/13 Jordan Degrange / Francisco Perez Gomez CERN PH/DT
Concept remind Vacuum table manufacturing and measurements MM panels design Future plans 12/05/13 Jordan Degrange / Francisco Perez Gomez CERN PH/DT
A sandwich of two soft skin is glued without mechanical constraints. A sandwich is: o One glass fibre skin (0.5mm) o Aluminium honeycomb surrounded with an aluminium frame o Second glass fibre skin (0.5mm) Sandwich schematic view Jordan Degrange/Francisco Perez Gomez PH/DT
Manufacturing concept o The skins are sucked with two vacuum tables o The vacuum table surfaces are perfectly flat o The vacuum table surfaces are set in parallel position Jordan Degrange / Francisco Perez Gomez PH/DT
Dimensions: 1300X600 Manufactured at CERN Outer surface: Epoxy gel coat ‘’EP Gel coat Weiβ’’ (1+1 reinforced layer). Structural layer: Glass fibre “Glasgewebe FK g/m2 Leinwand’’ + AXSON Epolam 5015 (5 layers). 4 perforated sides aluminium honeycomb. Araldite 2011
Jordan Degrange - Francisco Perez Gomez CERN PH/DT Gel coat + Glass fibre (3.5mm) Glass fibre (3mm) Perforated Al Honeycomb (60mm) Al profile (60X30mm) Al inserts (Ø40mm)
Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Perforated Al honeycomb
Jordan Degrange - Francisco Perez Gomez CERN PH/DT
CERN Metrology labCERN PH/DT Temperature: 20°C Planarity : 0.077mm Temperature : 21°C Planarity : 0.08mm Temperature : 22.5°C Planarity : 0.03mm There’s a temperature influence on flatness to be investigated. Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Reference holes on boards for alignment Ultem plugs to avoid drilling panels after assembly All plugs are precisely pre-glued on the board using a dedicated tool Aluminium frame pre-assembled on tool Aluminium honeycomb Araldite 2011 is the best candidate for gluing Panel manufacturing in one shot Jordan Degrange - Francisco Perez Gomez CERN PH/DT
4 reference holes. Jordan Degrange - Francisco Perez Gomez CERN PH/DT
4 reference holes. Jordan Degrange - Francisco Perez Gomez CERN PH/DT
2 pins Ø5g6 X Ø5,5g6 Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Ø5.50 Ø5.0 Jordan Degrange - Francisco Perez Gomez CERN PH/DT Ø5.50
Jordan Degrange - Francisco Perez Gomez CERN PH/DT Alignment pin Reference plug glued Cyanoacrylate 3M EC100
Ref. Spacer Board Alignement Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT … vacuum pump ON
Jordan Degrange - Francisco Perez Gomez CERN PH/DT
2 reference holes per profile Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Vacuum Table Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Precision shims (11,4mm)
Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Assembled and glued on drift panel using alignment holes Mesh glued on well defined surface. Acts as gas manifold. Large gluing area. Ground connection Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Joint groove Ground connection holes Gas IN/OUT
Gas IN/OUT (Ø2,5mm) Gas distribution channel Gas distribution holes (Ø0.5mm Ø1.5m m) Cleaning channel Surface glued on drift panel Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Alignment pin Board Fixation pins and ground connection Deflection = 0.01mm
Jordan Degrange - Francisco Perez Gomez CERN PH/DT
Prepare all needed elements for 1 panel assembly (frame, plugs, pins, etc..) Manufacturing of 1 full set of mesh support. Investigation of temperature and humidity influence on VT flatness Drill reference holes on vacuum tables. Assembly and QC of 1 panel for tooling and procedure validation Test on gas distribution Test on mesh gluing Ground connections tests Test on zebra fixation Electrical tests on Zebra connectors Francisco Perez Gomez / Hans Danielsson CERN PH/DT/EM2