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.

摘要采用有限元数值模拟方法研究了CO2气体焊的变形程。为了反映夹具和焊接件的接触状，将夹具和焊件统一建立有限元模型。