1.The contact between welding plate and fixture is treated as constraint in the finite element model of dynamic welding angular distortion simulation for overlayer in CO2 gas arc welding.

1.摘要采用有限元数值模法研究了CO2气体保护堆焊的变形动态过程。为了反映焊接件的接触状态，将焊件统一建立有限元模型。