With the continuous change of vehicle plates, new energy vehicles are becoming more and more strict on the thickness and working strength of plates, and the original welding tongs must meet the welding of existing processes
(hot-stamped steel plate and thickened plate), the welding pressure and current of the on-site part of the welding tongs need to be greatly improved, under this working conditions, resulting in rapid deformation of the electrode cap, deepening of the erosion of the oxide layer of the end face, and it is difficult to use the oxygen on the surface of the electrode cap when using the original grinding machine
The chemical is completely cleaned so that the end face always adheres to the oxide layer, and after several mold modifications, the end face oxide layer erodes deeper and deeper, resulting in regrinding
The R angle disappears, forming a deep oxidation groove, resulting in virtual welding of solder joints, unsightly end face shape, frequent spatter and other situations.