将金属板待焊部分重迭,用模具压紧,防止移动,然后用上、下冲头对板材需焊部位施压,同时冲头又作小幅度的上下往复运动。由于冲头往复运动,冲头下降时,上板嵌入下板(图b);冲头上升时,下板又嵌入上板中。在往复压嵌过程中,剪切面处因切断和非切断部分的反复的摩擦而生热,形成熔敷区,使两块板牢固焊在一起。 The metal plate to be welded partially overlap, with the mold pressure to prevent movement, and then use the upper and lower punch on the plate to be welded pressure, while the punch again for small amplitude reciprocating motion. As the punch reciprocates, punch down, the upper plate embedded in the lower plate (Figure b); punch raised, the lower plate and embedded in the plate. In the process of reciprocating press-in, the shearing surface is heated by the repeated friction of the cut and non-cut portions to form a welding area for the two plates to be firmly welded together.