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Friction Stir Welding in Pipeline Applications

[+] Author Affiliations
Russell Steel, Scott Packer

MegaStir Technologies

Colin Sterling, Tracy Nelson

Brigham Young University, Provo, UT

Paper No. IPC2004-0164, pp. 1515-1519; 5 pages
doi:10.1115/IPC2004-0164
From:
  • 2004 International Pipeline Conference
  • 2004 International Pipeline Conference, Volumes 1, 2, and 3
  • Calgary, Alberta, Canada, October 4–8, 2004
  • Conference Sponsors: International Petroleum Technology Institute
  • ISBN: 0-7918-4176-6 | eISBN: 0-7918-3737-8
  • Copyright © 2004 by ASME

abstract

Friction stir welding (FSW) is a relatively new joining process which has exhibited many advantages over traditional arc welding processes such as the elimination of solidification defects and reduced distortion. With the introduction of new tool material technology such as the use of polycrystalline cubic boron nitride, materials such as steels, stainless steels, and nickel base alloys have successfully been FSW. Though there are many advantages to friction stir welding, there has been very little work in applying the process to out of position welds, such as those found in pipelines. This study outlines the progression from linear friction stir welding to initial work consisting of the rotation of pipe coupons on a turn table and finally to the design of a portable FSW machine able to weld 305 mm (12 inches) diameter line pipe. A brief summary of FSW weld characteristics are given for API grades X65, X80, and X100 steels.

Copyright © 2004 by ASME
Topics: Friction , Welding , Pipelines

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