Arc welding may be done with direct current (DC) with the electrode either positive or negative or alternating current (AC). The choice of current and polarity depends on the process, the type of electrode, the arc atmosphere, and the metal being welded.

How to Arc Weld - Tutorial . This tutorial is intended to offer practical advice to beginner arc welders. It was produced with a great deal of help and guidance from professional welders whose time was funded by forum members and supporters. Take the tuto

Welding is more than dragging a welding rod across a piece of steel and gluing it to another one. The process begins with properly fitting and securing the work pieces, or metal to be welded, together. For thicker pieces, you may want to grind a bevel so