The three-dimensional numerical simulation on welding stress in pulsed TIG welded joint of aluminum alloy thin plate was performed by means of thermal-elastic-plastic FEM technology.

• 采用热弹塑性有限元方法,对铝合金薄板脉冲TIG焊接接头的焊接应力进行了三维数值模拟,考虑材料性能随温度的变化,对焊接残余应力进行测量。