What welding processes use constant current arc welding machines?

Constant current arc welding machines are primarily used in processes such as Shielded Metal Arc Welding (SMAW), Gas Tungsten Arc Welding (GTAW or TIG), and some variations of Gas Metal Arc Welding (GMAW). These machines maintain a consistent current level to ensure stable arcs, which is especially important for manual and precise welding applications. SMAW and GTAW benefit from this characteristic, as they allow for better control over the weld pool and electrode.