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Digital Imaging of an ERW Pipe Forming Process

[+] Author Affiliations
J. B. Wiskel, H. Deng, M. Rieder, A. Ben-Zvi, H. Henein

University of Alberta, Edmonton, Alberta, Canada

Paper No. IPC2008-64036, pp. 15-19; 5 pages
doi:10.1115/IPC2008-64036
From:
  • 2008 7th International Pipeline Conference
  • 2008 7th International Pipeline Conference, Volume 3
  • Calgary, Alberta, Canada, September 29–October 3, 2008
  • Conference Sponsors: International Petroleum Technology Institute and the Pipeline Division
  • ISBN: 978-0-7918-4859-3 | eISBN: 798-0-7918-3835-8
  • Copyright © 2008 by ASME

abstract

A deformation analysis of an ERW forming operation for a 114.3 mm (NPS 4) diameter steel pipe was undertaken using digital imaging technology. Digitals images taken of the inside profile of the pipe were calibrated and converted into Cartesian coordinates and a profile map along length of the forming operation was generated. A numerical curve fitting technique was applied to each individual profile to calculate the circumferential strain around the inside diameter. The circumferential strains calculated using the digital imaging technique corresponded well with strain gauge measurements. The calculated strains were combined into a 3D contour plot of strain along the length of the ERW process.

Copyright © 2008 by ASME
Topics: Tube bending , Imaging

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