Submerged arc welding in short is known as (SAW). The other name for SAW welding is sub arc, welding. In this welding procedure it requires a continuously fed wire electrode and a blanket of fusible, material – commonly known as flux. The importance of using the flux is to the shield the arc and molten material. An arc is generated between the material and wire electrode, and tip being submerged in the flux.
The process of welding is similar like arc welding process. The position of welding is limited to horizontal welding position. Saw welding procedure gives high quality of submerged arc welds. Since they provide high quality of welds they seek deep penetrations and deposition rates also being higher. The process of welding is automated or semi -automated. Sub arc welding is popular among the rebuilding steel fabrication industries, and hard facing industries.
The Equipment which comes into the contact for submerged arc welding process are- source of electricity, wire drive unit or head, flux storage, nozzle (combining wire and flux in the joint) and control units. The power to be used is DC or AC power or both powers can be used on multiple electrode systems. The flux been used can be recycled and reused.
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