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Experimental Study of Resistance Spot Welding Technique on Dissimilar Steels


Praveenbereddy , gnit; B. Vijaya Kumar, guru nanak institute of technology; Praveen Kumar, guru nanak institute of technology; Sasanka Jonnalagadda, guru nanak institute of technology


Low Carbon Steel, Austenitic CrNi Stainless Steel, Welding Parameters, Resistance Spot Welding


The experimental study of resistance spot weld deals between low carbon steel and austenitic CrNi stainless steel. The thickness of the welded dissimilar materials was 2 mm. A Delta Spot welding gun with a process tape was used for welding the dissimilar steels. Resistance spot welds were produced with various welding parameters (welding currents ranging from 7 to 8 kA). Light microscopy, micro hardness measurements across the welded joints were used to evaluate the quality of the resistance spot welds. The results confirm the applicability of Delta Spot welding for this combination of materials. Typically the sheets are in the 0.5 to 3 mm (0.020 to 0.118 in) thickness range. The attractive feature of spot welding is that a lot of energy can be delivered to the spot in a very short time (approximately 10–100 milliseconds). The properties of resistance spot welds of dissimilar steels have been studied and the influence of the welding parameters on the weld metal size has been evaluated.

Other Details

Paper ID: IJSRDV5I50591
Published in: Volume : 5, Issue : 5
Publication Date: 01/08/2017
Page(s): 451-456

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