| Title |
Metallurgical Evaluation of Dissimilar Metal Joints for Accelerator Vacuum Chamber Construction at the Advanced Photon Source Upgrade Project |
| Authors |
- G. Navrotski, B. Brajuskovic
ANL, Argonne, Illinois, USA
|
| Abstract |
Tubular vacuum chamber assemblies made of aluminum, copper and stainless steel alloys will be used in the new Multi Bend Achromat (MBA) storage ring that is being developed at Advanced Photon Source (APS). Details of the new lattice magnet system design and ring impedance considerations continue to drive these vacuum chambers to smaller dimensions and thinner walls with tighter geometric tolerances under higher thermal loads. It is important to carefully evaluate the methods used to join these dissimilar metal components looking for compromise in primary strength, permeability, electrical and thermal properties while still creating structures that are ultra-high vacuum compatible and leak-tight. This paper visually details the underlying metallurgical changes that occur when joining various combinations of aluminum, OFE copper, GlidCop® and stainless steel using brazing, bonding and welding techniques. Each of the techniques has its advantages and disadvantages with engineering and economic consequences.
|
| Funding |
Funding provided by the Advanced Photon Source, U.S. Department of Energy, Office of Science, Argonne National Laboratory under Contract No. DE-AC02-06CH11357. |
| Paper |
download TUPE25.PDF [1.336 MB / 3 pages] |
| Poster |
download TUPE25_POSTER.PDF [2.312 MB] |
| Export |
download ※ BibTeX
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※ EndNote |
| Conference |
MEDSI2016 |
| Series |
Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation Conference (9th) |
| Location |
Barcelona, Spain |
| Date |
11-16 September 2016 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Joan Casas (ALBA-CELLS, Cerdanyola del Vallès, Spain); Volker RW Schaa (GSI, Darmstadt, Germany); Isidre Costa (ALBA-CELLS, Cerdanyola del Vallès, Spain); David López (ALBA-CELLS, Cerdanyola del Vallès, Spain); Montserrat Prieto (ALBA-CELLS, Cerdanyola del Vallès, Spain) |
| Online ISBN |
978-3-95450-188-5 |
| Received |
07 September 2016 |
| Accepted |
15 September 2016 |
| Issue Date |
22 June 2017 |
| DOI |
doi:10.18429/JACoW-MEDSI2016-TUPE25 |
| Pages |
220-222 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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