Submerged Arc Welding (SAW) – This Is How It’s Done!

Submerged Arc WeldingSubmerged Arc Welding

Sub arc welding (SAW) is a common arc welding process. Submerged arc welding is a process in which the joining of metals is produced by heating with an arc between a bare metal electrode and the work piece.

Submerged Arc Welding (SAW) – This Is How It’s Done!

Prior to welding, a thin layer of flux powder is placed on the workpiece surface. The arc moves along the joint line and as it does so, excess flux is recycled via a hopper. Remaining fused slag layers can be easily removed after welding. This thick layer of flux completely covers the molten metal thus preventing spatter and sparks as well as the intense ultraviolet radiation and fumes.

SAW is usually operated as a fully-mechanised or automatic process, but it can be semi-automatic. SAW is commonly used to weld stainless steels, duplex stainless steels, carbon steels, carbon-manganese steels in pressure vessel and structural fabrication.

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