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CHANG Bao-hua, DU Dong, CHEN Qiang, ZHOU Y. Finite element simulation of resistance spot welding process of aluminum alloys[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (2): 19-22.
Citation: CHANG Bao-hua, DU Dong, CHEN Qiang, ZHOU Y. Finite element simulation of resistance spot welding process of aluminum alloys[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (2): 19-22.
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Finite element simulation of resistance spot welding process of aluminum alloys

  • 1.

    Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

  • 2.

    Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, N21 3G1, Canada

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  • Received Date: June 19, 2003
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    • Abstract
  • A finite element analysis model was established for resistance spot welding of aluminum alloys, and a contact resistance model based on micro-contact theory was employed to describe the contact resistance at the faying surface. The variation of contact radii at electrode/workpiece and workpiece/workpiece interfaces, in addition to the distribution of stress, current density and temperature at the faying surface during spot welding process were all obtained. Experiments were conducted to examine the process of nugget initiation and growth. Comparisons show that the calculated and experimentally measured results agreed with each other very well, which validate the correctness and suitablilty of the contact resistance model in modeling the resistance spot welding of aluminum alloys.
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