Why SAW Welding is Beneficial ?

Submerged Arc welding is a wire-fed process typically used with carbon steels, stainless steels and some nickel alloys, and it is best suited for materials that are 1/2-inch to 5-inches thick. It’s a common misconception that SAW is only for thick metals, however. It can be used to weld material as thin as 3/16-inch thick, by accounting for travel speed and heat input to avoid burn-through.

 ( Submerged Arc welding)

In SAW, a granular flux is used to protect the arc from the atmosphere; the Submerged Arc name refers to the fact that the arc itself is buried in the flux. The arc is not visible when parameters are correctly set and the layer of flux is sufficient.

The wire is fed through a torch that moves along the weld joint. The arc heat melts a portion of wire, flux and base material to form a molten weld pool. In this area, all important functions of the flux — degassing, deoxidizing and alloying — take place. Behind the arc, molten flux and metal freeze to form a slag-covered weld bead. When the welding process is correctly set, the slag should come off easily. Because of the necessity of the flux coverage, the SAW process is limited to the flat and horizontal positions.

                                                                         ( Submerged Arc Welding Video) 

Advantages of Submerged Arc Welding

  1. Molten flux provides very suitable conditions for high current to flow. Great intensities of heat can be generated and kept concentrated to weld thicker sections with deep penetrations.
  1. Because of high heat concentration, considerably higher welding speeds can be caused.
  1. Because of high heat concentration and high welding speeds weld distortion is much less.
  1. High metal deposition rates can be achieved. Single pass welds can be made in thick plates with normal equipment.
  1. Welding is carried out without sparks, smoke, flash or spatter.
  1. Weld metal deposit possesses uniformity, good ductility, corrosion resistance and good impact strength and hence the Weld Quality is improved.
  1. Very neat appearance and smooth weld shapes can be got.
  1. The submerged process can be used for welding in exposed areas with relatively high winds.
  1. Practically, no edge preparation is necessary for materials under 12 mm in thickness.

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A thing well done is a reward in itself… when you begin with this philosophy excellence becomes a way of life, and you achieve more than you aimed for. Exemplifying this  spirit in  all its operation is REVA INDUSTRIES LTD. A company that has been set on a dynamic  track  record  ever since its inception, and has continued to move  from one  milestone  to another.  With  an  extremely  dedicated  team of enterprising engineers and   self-dedicated  workmen  as it’s  main assets.  It  manufactures  DG EOT Cranes,  Electric Wire Rope Hoists, Goliath Cranes, Jib Cranes,  Crane Kits,   Hazard  Area   Cranes & Hoists , Steel Mill Duty Cranes, Electric Winches, Transfer Trolleys, Electric Chain Hoist, Helical Gear Boxes, Geared Couplings, Geared Motors and Customized Material Handling Solutions.