Working principle, function and characteristics of automotive sheet metal molding machine (commonly known as meson machine) \x0d\ 1. Working principle: The high-resistance heat generated when low-voltage and high-intensity current flows through two iron plates is used to melt the metal in the contact part, and they are fused together by the extrusion force of the welding gun electrode, so as to achieve the purpose of welding. \x0d\2。 Functions: welding meson (medium for drawing), single-sided electric welding, electric fire extinguishing, carbon rod repair heating, steel plate pressing. \x0d\3。 Features: fast welding speed, small heating range, difficult deformation of metal and convenient operation. \x0d\4。 Advantages: No matter what the structure of the car body is, different media can be welded at the depression, and it can be repaired by pulling. It integrates many functions such as welding and heating, which brings convenience to the plastic repair of the car body.