薄板镁合金激光焊接温度场分布的模拟研究  

Simulation Research on Temperature Field of Laser Welding for Magnesium Alloy Thin Sheet

作　　者：陈浩[1] 高传玉[1] 曹敏[1] 陈楼[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《热加工工艺》2012年第3期154-156,159,共4页Hot Working Technology

摘　　要：采用ANSYS的APDL语言编写子程序,对0.6mm的薄板镁合金AZ61激光焊的温度场分布进行了数值模拟研究。分析了ANSYS在模拟镁合金激光焊接温度场中存在的各种难点,如热流密度的加载方式、热物理性能参数的选择、熔化潜热、对流以及一些关键参数的处理原则。结果表明,模拟能较好的反应出薄板镁合金激光焊接的温度场分布,对研究镁合金薄板激光焊接的温度场具有参考价值。Using APDL program in ANSYS,temperature field distribution in laser welding process of 0.6mm thick magnesium alloy thin sheet was simulated.Some problems in simulation,such as loading mode of heat flux density,thermal physical performance parameters,latent heat of fusion,convection boundary condition and other key parameters choice principle were analyzed.The results show that,simulation by ANSYS can reflect the laser welding of AZ61 thin sheet temperature field distribution vividly,which assists to study the temperature field of the laser welding for magnesium alloy thin sheet.

关 键 词：激光焊接 温度场 有限元 薄板 

分 类 号：TG456.7[金属学及工艺—焊接]