How Arc Welding works?

Nice topic…really want to know. Let’s talk about it. In arc welding, the work to be welded becomes part of an electric circuit (hopefully you read last posting).

In a simple welding circuit, a power source (generator ) provides the current. From one pole on this source comes the electrode cables which carries the current. At the end of the cable is the electrode holder and the electrode itself. An electrode is a rod to melt down as filler metal. The current flows through the electrode cable into the electrode.

The electrode is held against the workpiece and then drawn back slightly causing a short. The electric current jumps the gap, creating a continuous spark which is called the arc. The workpiece is attached to ground cable which connects it to the opposite pole of the power source and completing the circuit.