Is a dc welder electrode positive?

In a DC welder, the polarity can be either direct current electrode positive (DCEP) or direct current electrode negative (DCEN), depending on the desired welding characteristics. DCEP, where the electrode is positive, is commonly used for processes like TIG welding, as it provides better penetration and a hotter arc. Conversely, DCEN is often used for processes like MIG welding, providing a different heat distribution and weld bead profile. The choice of polarity affects the welding process and the type of materials being welded.