Paper Title:
Numerical Simulations of Friction Stir Welding Process and Subsequent Post Weld Cold Rolling Process
  Abstract

A sequential coupled three-dimensional thermo-mechanical analysis was conducted first to simulate friction stir welding (FSW) of aluminum alloy. In thermal analysis, the model included adaptive heat source, contact heat transfer both between work piece and clamps and between work piece and backing board etc; in the mechanical analysis, the model involved contact interaction both between work piece and clamps and between work piece and backing board, mechanical load of tool etc. The simulation results indicate that the longitudinal residual stress is unsymmetrical about weld centerline; the magnitude of longitudinal residual stress for FSW process is lower than that for fusion welding process. Based on simulated results of FSW process, a three-dimensional elastic-plastic analysis was then carried out to simulate rolling process, the simulation result show that rolling process not only causes a marked reduction in the longitudinal tensile residual but also reverse the sign of the longitudinal residual stress.

  Info
Periodical
Key Engineering Materials (Volumes 419-420)
Edited by
Daizhong Su, Qingbin Zhang and Shifan Zhu
Pages
433-436
DOI
10.4028/www.scientific.net/KEM.419-420.433
Citation
Y. J. Sun, Y. Zang, Q. Y. Shi, "Numerical Simulations of Friction Stir Welding Process and Subsequent Post Weld Cold Rolling Process ", Key Engineering Materials, Vols. 419-420, pp. 433-436, 2010
Online since
October 2009
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Price
$32.00
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