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    张瑞华, 樊丁, 片山聖二. 深熔激光焊接熔池温度场的数值模拟[J]. 机械工程材料, 2007, 31(2): 71-74.
    引用本文: 张瑞华, 樊丁, 片山聖二. 深熔激光焊接熔池温度场的数值模拟[J]. 机械工程材料, 2007, 31(2): 71-74.
    shu
    ZHANG Rui-hua, FAN Ding, SEIJI Katayama. Numerical Simulation of Heat Process of the Laser Welding[J]. Materials and Mechanical Engineering, 2007, 31(2): 71-74.
    Citation: ZHANG Rui-hua, FAN Ding, SEIJI Katayama. Numerical Simulation of Heat Process of the Laser Welding[J]. Materials and Mechanical Engineering, 2007, 31(2): 71-74.
    shu

    深熔激光焊接熔池温度场的数值模拟

    Numerical Simulation of Heat Process of the Laser Welding

      摘要
    • 摘要: 利用旋转Gauss曲面体新型热源模型,忽略深熔激光焊时小孔对传热的影响,建立了移动激光热源作用下的三维数学模型.利用PHOENICS3.4软件,模拟了SUS304不锈钢深熔激光焊接热过程的温度场和熔池熔合线形状,得到了不同焊接速度下的温度场分布云图和“钉头”状的熔池形状.数值模拟结果与试验结果基本吻合.

       

      Abstract: A mathematical model to describe moving laser welding was developed by using the Rotary-Gauss body heat source model and neglecting the effect of keyhole on thermal conduct.Numerical simulation was conducted by PHOENICS 3.4 software.The model was applied to laser welding processing of SUS304 stainless steel.The shape of molten pool and the temperature field were analyzed.The shape of molten pool looks like “nailhead” shape.The simulation results of molten pool shape provide good agree with the practice welding results.

       

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