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LCLS Week 2 The Extruded Aluminum vacuum chamber…

Progress report on extruded aluminum vacuum chamber manufacturing, including polishing, machining, specifications, and delivery schedules. Continual adjustments and improvements made for consistent quality. Acknowledgments to key individuals and companies involved.

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LCLS Week 2 The Extruded Aluminum vacuum chamber…

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  1. LCLS Week 2The Extruded Aluminum vacuum chamber…

  2. Progress to Date… • Polishing continues… • Twenty-five pieces already delivered to Hi-Tech for Machining • We continued to adjust the recipe for polishing as we went along up to this point—we now feel we can polish more consistently within a more satisfying range. • Ten more pieces scheduled for delivery to Hi-Tech on 1/30 • The remaining ten pieces to be delivered to Hi-Tech in early February

  3. Polishing Results So Far…

  4. Progress continued… • Machining continues… • Six production chambers delivered to ANL • Chamber machining was temporarily on hold for machining of chamber alignment plates • This “hold” period allowed us to learn a little more about the alignment and machining of the production chambers • All 120 plates now fully machined. • The next batch of production chambers now being machined—delivery anticipated 2/3.

  5. Vacuum Chamber Specifications • A draft Engineering Specification Document (ESD) is written. Requirements are below.

  6. LCLS VC thickness inspection

  7. LCLS VC dimensional inspection and installation test LCLS VC on the alignment stand LCLS VC on the granite table for the length inspection

  8. Inspection and correction of the LCLS VC end flange perpendicularity (.003 - .004 precision)

  9. Inspection of the end length of the LCLS VC(.001” precision)

  10. Two LCLS VC on the baking stands

  11. Progress continued… • First Delivery to LCLS Soon… • On 1/28, the first five chambers will depart ANL

  12. First production LCLS VC in the shipping crate

  13. The Schedule…

  14. What we learned along the way… • The overall length is difficult to predict precisely due to shrinkage during the welding of the ends. • The Dycor RGA heads short out easily. • Two shorts in five chambers??? • The alignment system … • We are evaluating other options that we hope may be easier to use. • Eliminate the compound screw that limits roll adjustment???

  15. Minor changes in LCLS VC design to simplify its alignment First six chambers All other chambers

  16. CONCLUSION Manufacturing and certification of the LCLS vacuum chambers is proceeding according to our schedule and within the allocated budget

  17. ACKNOWLEDGMENTS A special “thank you” to: Mark Erdmann, Joe Gagliano, George Goeppner, Dana Capatina, Scott Doran, Esiquio Salazar, Kevin Knoerzer, Russel Otto, Dan Nocher, Mike Bosek, Dan VanLannan, Wayne Michalek, Mark Martens, Paul Aguirre, Aaron Lopez, Lahsen Assoufid, Jun Qian, Albert Macrander; Frank Bock(“Cardinal aluminum Co.”), Don Fulcher, Tom Inwood(“Engineered Finishing Co.”), Simon Sorsher(“Hi-Tech Mfg.”).

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