What are the differences between an electric welder and an arc welder?
Lies in an AC dc. Arc welding can protect oxygen from inert gas. It can weld thinner construction.
Welding machine is the floorboard of welding equipment. Manual welding is also called manual arc welding machine. Most welding equipment produce arc when it is welded (Hu Han).
Electric welding machine is a general term, including arc welding, argon arc welding, pressure welding, welding, ultrasonic welding, seam welding, etc.Arc welding machine is to produce high temperature welding weldment by gas arc. It's one of the electric welding machines.