9.82 Explain the process of air carbon arc cutting.

9.83 Explain the resistance welding process giving the equipment, parameters controlled and the

applications.

9.84 What are the parameters to be controlled in the resistance welding process?

9.85 Distinguish giving reasons, between joining of sheets in resistance welding and arc welding, from the

point of current required and duration of the welding.

1.5Show by a schematic sketch, a resistance welding operation labelling the important features.