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CHEN Shuhai, ZHANG Mingxin, LI Meng, HUANG Jihua. Numerical simulation of fiber laser welding-brazing of Fe/Al dissimilar metals[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 21-24.
Citation: CHEN Shuhai, ZHANG Mingxin, LI Meng, HUANG Jihua. Numerical simulation of fiber laser welding-brazing of Fe/Al dissimilar metals[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 21-24.
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Numerical simulation of fiber laser welding-brazing of Fe/Al dissimilar metals

  • School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

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  • Received Date: January 12, 2014
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    • Abstract
  • In this paper, a finite element model of fiber laser welding-brazing process for steel/Al dissimilar metals was established by ANSYS. The accuracy of the finite element model was verified by fusion zone boundary criteria. The stress field and welding deformation were simulated based on this mode. The results showed that the peak tensile stress along welding direction appeared on the lower surface of the steel and near the welds behind the heat source. This peak tensile stress increased continually with the welding process continued and it reached a maximum of 203 MPa when welding finished (13s). The stress distribution was asymmetric and there was high stress gradient close to the heat source. The maximum deformation of the specimen was 0.882 mm.
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