利用余高-熔宽比表示焊缝表面铺展性并与焊缝熔宽比一起作为参数来评价热源焊缝表面的成形性,探讨了焊接参数包括焊接电流、激光功率和焊接速度对焊缝成型的影响。结果表明:随着激光功率的增大,焊缝余高-熔宽比降低,焊缝背宽比增大;随着焊接电流和焊接速度的增大,焊缝余高-熔宽比和焊缝背宽比增大。 Using the residual height-width-to-breadth ratio to represent the surface spreadability of the weld and evaluating the formability of the heat source weld surface with the weld width ratio, the effects of welding parameters, including welding current, laser power and welding speed, Impact. The results show that with the increase of laser power, the residual height-weld-to-weld ratio decreases and the back-to-back width of weld increases. With the increase of welding current and welding speed, the residual weld- Back-to-back ratio increases.