The so-called intermediate frequency spot welding process: In fact, it refers to the use of resistance heat as the energy source for welding. This welding method is relatively simple, and starting welding is not so complex. Spot welding is an important high-speed and economical welding method, with a wide usage rate and no high technical requirements. Therefore, spot welding can be considered a simple mode of welding. Of course, Spot welding also involves using some welding equipment for spot welding, that is, using spot welding machines for spot welding connections. The use of spot welding equipment is relatively complex because spot welding machines are operated using programs, while some spot welding machines are manually operated.

The medium frequency spot welding machine is the most commonly used method in automobile manufacturing plants to weld the integral body on the assembly line. Squeeze resistance spot welding machine is suitable for welding thin components on integral vehicle bodies that require good welding strength and no deformation.

The common applications of medium frequency spot welding machines include roof, window and door openings, door sill panels, and many external wall panels. The small resistance spot welding machine used for car body repair can weld the repaired parts through conductive zinc substrate, and the appearance quality is identical to the welding of the manufacturer.

Its advantages lie in short heating time and concentrated heat, resulting in a small heat affected zone, small deformation and stress, and usually no need to arrange correction and heat treatment processes after welding.