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Submerged Arc Welding

A high-yield automated welding process

Submerged arc welding is commonly used in industries where thick steel sheets are involved or where long welds are required. The process consists in creating a welded joint between steel components using an electric arc submerged beneath a layer of powdered flux.

 

Oerlikon can provide a complete and optimized range of automatic installations and equipments for submerged arc welding such as our SUBARC 7i installation equipped with STARMATIC 1200i AC/DC power source.
Our experts will be able to advise and propose customized columns & booms installations, beams, remote controls units, such as 3A welding system… to suit customers needs.

Principle of the process

Submerged-arc welding (SAW) involves the formation of an arc between a continuously fed wire and the workpiece. A blanket of powdered flux creates a protective gas shield and a slag for the weld zone. A shielding gas is not required. The arc is submerged beneath the flux blanket and is not normally visible during welding.

SAW is normally operated in the automatic or semi-automatic mode. The process is normally limited to the flat or horizontal-fillet welding positions.

Discover the submerged arc welding process through this video

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