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LUO Yi, LIU Jinhe, YE Hong. Numerical simulation on keyhole thermal effect of vacuum electron beam welding of magnesium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (12): 73-76.
Citation: LUO Yi, LIU Jinhe, YE Hong. Numerical simulation on keyhole thermal effect of vacuum electron beam welding of magnesium alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (12): 73-76.
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Numerical simulation on keyhole thermal effect of vacuum electron beam welding of magnesium alloy

  • 1.

    School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China;School of Material Science and Engineering, Chongqing Institute of Technology, Chongqing 400050, China

  • 2.

    School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

  • 3.

    School of Material Science and Engineering, Chongqing Institute of Technology, Chongqing 400050, China

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  • Received Date: August 16, 2009
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    • Abstract
  • The keyhole thermal effect of vacuum electron beam welding for magnesium alloy was analyzed.In view of the thermal effect of high-temperature metal vapor and the deep-penetration effect of keyhole during welding,a composite heat source model applying to magnesium alloy,which was made up of Gaussian surface source and conebody source,was developed.By the different valuation to the power coefficients of Gaussian surface source and cone body source,the various focus states of electron beam were simulated to get the welding temperature fields.And then,the simulation results were favorable for the shape calculation to keyholes and welds.The experimental results show that the simulation results have good consistency with the experiment welds.
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