What is DC reverse polarity in welding?

AC is good for welding material that is magnetized to eliminate arc blow. The penetration by AC is also more than with straight polarity but less than that of the reversed. Just to make it simple, here's how it goes - For deepest penetration, use DC reverse polarity (Electrode Positive). read more

Polarity Welding with DC Straight and Reverse Polarity Welding with DC Straight and Reverse Polarity To understand welding with DC straight and reverse polarity, it is important to understand the electrical arc welding circuit, which is the same as any electrical circuit. read more

Direct current (DC) flows in one direction, resulting in a constant polarity. Alternating current (AC) flows half the time in one direction and half the time in the other, changing its polarity 120 times per second with 60-hertz current. A welder should know the meaning of polarity, and recognize what effect it has on the welding process. read more