The so-called spot welding refers to a form of resistance welding, wherein the workpieces are selectively compressed by means of two electrodes and welded by the supply of electrical voltage and the entsptrechenden heating of the metal. Spot welding often occurs in sheet metal processing, e.g. used in vehicle construction.
Both to facilitate the work and to enable the most accurate execution possible in welding, welding devices, e.g. Welding gauges or welding tables used.