Resistance welding is used to weld sheet metal, thus with applications in any sector
This process allows better control over the precision and pressure to be applied.
Resistance welding involves a thermoelectric process of creating heat by passing electric current between electrodes. It is an autogenous welding method, in which a fusion of the parts to be joined takes place.
The most common techniques are:
Spot welding can be manual, through the use of resistance welding machines, or automatic, with the insertion of spot welders into robotic resistance welding systems.
Roller resistance welding involves the use of copper discs that make spots in succession on overlapping metals.