Submerged flux-cored welding
Arc welding

Submerged arc powder welding (SAFP) is the automation of coated electrode welding. It combines a fusible wire electrode, unwound from a reel, with protection provided by vapors from a composite powder comparable to the coating and delivered directly to the arc zone, but independently of the electrode. This arrangement makes it possible to produce multi-hour, uninterrupted welds. This process is also known as submerged arc welding (SAW).

Submerged arc welding is carried out almost exclusively automatically by means of the systems shown...