In the process of DC upset butt welding, 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
A displacement threshold was used to control DC upset butt welding process, and constant pressure and varied pressure tests were carried out on Q235 a steel strips.
采用位移门槛电压控制焊接过程，对Q 235 - A钢进行了变压式和等压式扁钢带直流电阻对焊试验。
3
The joint deformation of DC upset butt welding was studied by using theory of plastic deformation and rigid-viscosity plastic material model.