Increase ductility

Increase malleability

Increase strength

Increase brittleness

Improve hardness

Improve machinability

Improve brittleness

Improve weldability

More initial cost

Freedom from arc blow

More maintenance cost

Un suitable for non ferrous metal

Suitable for all ferrous and non-ferrous

Initial cost is lower

Maintenance cost in less

Not special safety precaution required

Motor generator set

Engine generator set

AC arc welding machine

AC welding transformer with a rectifier