Submerged Arc Welding – What is it and how is it done?
Submerged arc welding (SAW) is an arc welding process in which two metals are joined by producing heat with an arc between the workpiece and a bare metal electrode.
Before starting, the one that’s welding place a thin layer of flux powder on the workpiece surface. During the process, the arc moves along the joint line and excess flux is recycled via a hopper. The remaining fused slag layer is easily removed after welding.
Submerged arc welding usually is operated as an automatic or a fully mechanized process. Nevertheless, we have seen it done semi-automatic as well. Most often it is used to weld duplex stainless steels,carbon-manganese steels, carbon steels etc. Check out the process in the video below!