According to the characters of helium arc welding of tantalum sheet,based on ANSYS,three-dimensional transient numerical dynamic simulation of tantalum TIG helium arc welding was carried out.

• 针对钽薄板氦弧焊接的特点,基于有限元分析软件ANSYS,对钽薄板TIG氦弧焊接的温度场进行三维数值动态模拟,并将计算量控制在可接受的范围内。