Applications of spot welding
As spot welding can be employed for Al, Cu, Ni and Mg alloys. It is not advisable to spot weld steels with carbon content greater than 0.25 % unless post weld heat treatment facilities are available and possible. Spot welding is used in aircraft industry, automobile industry, rail car industry, instrument Industry and for making attachment braces, bracket pads, clips and sheet metal parts like cases, covers, bases and trays.