What is Spot welding?

[Audi]

The heat requires for melting and join of the plates is obtained through electrical resistance of the circuit called as
Resistance Welding Operation

RWO classified as follows.
Resistance Seam, Projection Welding, Resistance Spot Welding, Percussion Welding.

Advantages of RSW:
Cost-effectiveness, Easy automation, Low fumes, No filler materials are required.
Applications of Resistance Spot Welding:
RSW is Railway tracks, Used for joining of vehicle body parts, Fuel tanks, Domestic radiators, Pipes of gas oil and water pipelines, Turbine blades.

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