Resistance Spot Welding Machine

Spot welding machine produces serious indentation and extrusion, what is the problem?

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Update time : 2022-05-25 15:44:22
Due to its high production efficiency, low cost and material saving, spot welding machines are widely used in handicrafts, electronic components, instrumentation, electrical switches, cable manufacturing, mufflers, metal packaging, chemical containers and other industries. The working principle of spot welding machines It uses the high-temperature arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder on the electrode and the material to be welded to achieve the purpose of combining them.


The process parameters that affect the welding quality of the spot welding machine include welding current, electrode pressure, energization time, and electrode working surface size.

Severe indentation and extrusion:
a. Check whether the current is too large.
b. Check whether the welding workpiece is uneven.
c. Check whether the electrode pressure is too large, and whether the shape and cross-section of the electrode head are appropriate.

When operating the spot welding machine, it is necessary to wear gloves, aprons and protective glasses to avoid sparks flying out and scalding. Oxides, dirt, oil and other impurities on the workpiece surface increase the contact resistance. An overly thick oxide layer can even prevent current flow.