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Determination of a Critical Forming Parameter for the Cross-Wedge Rolling of Tubes

[+] Author Affiliations
Clint A. Morrow

Florida Institute of Technology, Melbourne, FL

Michael R. Lovell

University of Pittsburgh, Pittsburgh, PA

Qiang Li

Missouri Forge, Inc.

Paper No. WTC2005-63528, pp. 819-820; 2 pages
doi:10.1115/WTC2005-63528
From:
  • World Tribology Congress III
  • World Tribology Congress III, Volume 1
  • Washington, D.C., USA, September 12–16, 2005
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4201-0 | eISBN: 0-7918-3767-X
  • Copyright © 2005 by ASME

abstract

An explicit dynamic finite element model is used to analyze the tribological behavior of the cross-wedge rolling (CWR) of tubular structures. Cross-wedge rolling is a manufacturing process used to form axisymmetric parts by the relative motion of two opposing hardened dies. To date, the CWR process has been used to form only solid parts. In the present investigation, results are presented for the counteraction of flat dies that are used to deform tubular structures. By combining, numerical and experimental evidence, a critical forming parameter is developed which predicts the critical rolling conditions for the CWR forming of tubular structures. This parameter combines the effects of friction, wall thickness to radius reduction, and tube hardness.

Copyright © 2005 by ASME
Topics: Wedges

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