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SEAM WELDING AND ITS PROCESS

Seam welding is a method of making a continuous joint between two overlapping pieces of sheet metal. The normal procedure for making a seam weld is to place the work between the wheels which serve as conductors for producing continuous welds. As pressure is applied, the drive is started and the welding current switched on. Then at the same time, the over-lapping surfaces of the metal are forced together as fast as they are heated. A coolant is applied to conserve the electrodes and cool the work rapidly to speed the operation. 

The materials that may be seam welded include most of those that may be spot welded. Steel plates 10 mm thick have been seam welded to hold about 200 kg/cm2 (20000 KN/m2) pressure. Seam welding is used on many types of  pressure tight or leak proof tanks for various purposes and numerous other products.

 

Seam Welding




 

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