The Submerge Arc Welding is an arc welding process that produces coalescence of metals by heating them with an arc between a bare metal electrode and workpiece. The arc and molten metal are submerged in a blank of granular fusible flux on the workpiece. The control system used for semiautomatic submerge arc welding are simple wire feed controls. SAW is used in a wide range industrial application. High weld quality, high deposition rates, deep penetration. It is used extensively in pressure vessel fabrication, ship, and barge building, railroad car fabrication, pipe manufacturing.