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Participants: Giulio Auriemma, Thomas Schneider, Burkhard Schmidt General Remarks: Visit was organized by Guenakh Mitselmakher and Giorgio Appolinari We had extensive visits to chamber factory and useful discussions ->Project started many years ago and is ready for mass-production - PowerPoint PPT Presentation
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11/05/2000 Wire Chamber Working Group
Visit to Fermilab
Participants: – Giulio Auriemma, Thomas Schneider, Burkhard Schmidt
General Remarks:– Visit was organized by Guenakh Mitselmakher and Giorgio Appolinari
– We had extensive visits to chamber factory and useful discussions
->Project started many years ago and is ready for mass-production
Outline:– Project Description– Chamber Design– Manufacturing Tooling
11/05/2000 Wire Chamber Working Group
CMS EMU - Project Description
Title: (cms_side_view.eps)Creator: Adobe Illustrator(TM) 7.0CreationDate: (5/4/98) (3:40 PM)
Overview:
11/05/2000 Wire Chamber Working Group
Project Description
Task Sharing:
• Fermilab has the responsibility for the design and procurement of the components for all the CMS EMU chambers
• Chamber Production:– ME234/2 Assembled in MP9 (USA)
144+2 chambers– ME2/1, ME3/1 Assembled at PNPI (Russia) 72+2chambers– ME1/2, ME1/3 Assembled at IHEP (China) 144+2 chambers
• Fermilab has the responsibility for the shipment of kits and critical tooling to PNPI and China IHEP.
11/05/2000 Wire Chamber Working Group
Mechanical Design:
Anode Panels
Cathode Panels
CMS EMU - Chamber Design
11/05/2000 Wire Chamber Working Group
Chamber Design
Chambers consist of six major parts:– Panels - Made by Plascore from skins procured from GE and
machined at Lab 8 (PPD) and supplied to MP 9 as finished panels ready for cleaning and assembly
– Frames - Designed and Supplied by University of Wisconsin, Madison
– Wires - Supplied by Luma Metals to FNAL Specifications
– FR 4 Insulators and Separators - Manufactured by Eptam for FNAL under contract with the University of Florida
– Wire Fixation Bars - Supplied by Capital Electronics or PNPI
– Electrical components
11/05/2000 Wire Chamber Working Group
Chamber Design
Status:
• The chamber design is complete and all component and assembly drawings are released: http://tdpc01.fnal.gov/uscmsemu/Released Drawings/
• After completing several R&D prototypes, one production prototype has been built according to final released drawings
• Frame design and drawings may change as integration issues are resolved; additional components may be added to the outside of the chamber. None should affect basic chamber design
11/05/2000 Wire Chamber Working Group
Tooling Summary:
- Panel Preparation Tooling: Axxiom MachineGerber Machine
- Major Assembly Tooling: Gap bar gluing and clamping Station
Epoxy Curing StationAnode Wire Winding MachineAnode Wire Gluing MachineAnode Wire Soldering Station Ionized Air Cleaner
- Carts, Racks, and Assembly Tables:Anode Panel Cart Panel Table Cart Assembly TableSealing (RTV) & Transport
- Quality Assurance Tooling:Panel Vendor Inspection ToolingWire Tension and Spacing
TesterHV Test and Train
InstrumentationCosmic Ray Test Station
CMS EMU - Manufacturing Tooling
11/05/2000 Wire Chamber Working Group
• All Manufacturing Tooling Designs are Complete
• Drawings for All FNAL Designed Tooling are Engineering Released
• At Least One Each of All Production Tools have been Built to Final Released Drawings and are Ready for Use
Manufactoring Tooling
11/05/2000 Wire Chamber Working Group
CMS EMU - Manufacturing ToolingAnode Panel Gluing & Clamping:
These machines place
precise amounts of epoxy
glue on panels to bond
wire fixation boards and
guard strips; boards are
clamped in place to maintain
uniform solder pad to panel
surface height.
11/05/2000 Wire Chamber Working Group
Anode Panel Winding Machine:• Winding Machine in operation• For largest panel winds 1000 turns of wire in about 4 hrs.
CMS EMU - Manufacturing Tooling
11/05/2000 Wire Chamber Working Group
CMS EMU - Manufacturing Tooling
Anode Wire Soldering Machine:This machine uses a concentrated beam of intense light to melt precise amount of solder to bond anode wire to circuit pad of anode wire fixation board.
It is capable of soldering 1000 wires in a little more than 1 hr., taking about 5 hrs to complete one large panel.
11/05/2000 Wire Chamber Working Group
Ionizing Air Cleaner:
Cleans finished Anode Panel just prior to assembly into Chamber
CMS EMU - Manufacturing Tooling
11/05/2000 Wire Chamber Working Group
CMS EMU - Manufacturing ToolingWire Tension Machine:
Electronically excites wires, measures and converts natural frequencyinto tension.
11/05/2000 Wire Chamber Working Group
CMS EMU - Manufacturing Tooling
Cathode Panel Gluing Station:
A computer controlled mixingand dispensing system placesprecise amounts of epoxy onto each panel in preciselocations as required.
11/05/2000 Wire Chamber Working Group
Frame Assembly:
Chamber P2’ (ME 2/2) is shown assembled with frame attached. Note the main alignment pin and critical mounting plate assembly.
CMS EMU - Manufacturing Tooling
11/05/2000 Wire Chamber Working Group
Chamber Design: – The conceptual design of the CSC Chambers is solid
Tooling and Production:– The manufacturing process of the CSC chambers is
optimized for mass production – The experience and knowledge gained from completed full
size CSC Prototype chambers is of tremendous value for us
-> Given the time available for us to finalize the chamber design and prepare for mass production, we should follow the CMS EMU chamber and tooling design as closely as possible.
Summary and Conclusions
Recommended