In the process of DC upsetbuttwelding, the joint quality was strongly effected by the temperature distribution in the direction of the plate width.
板材直流电阻对焊过程中，对接端面沿板宽方向的温度分布对焊接接头的质量有很大的影响。
2
The joint deformation of DC upsetbuttwelding was studied by using theory of plastic deformation and rigid-viscosity plastic material model.
采用塑性变形理论和刚粘塑性材料模型研究了直流电阻对焊接头的塑性变形。
3
A displacement threshold was used to control DC upsetbuttwelding process, and constant pressure and varied pressure tests were carried out on Q235 a steel strips.