Spot Welding of Galvanized Steel ASTM A653 Using Oxygen Free High Conductivity Copper Interlayer

The effect of spot welding parameters (Current and Applied Load) are studied in welding ofgalvanized steel specimens. Three values of current 9600, 11000 and 12300 AMP and load of350, 400, 450 kg are used. The results indicate that the shear force improve with increasing thecurrent and decreasing the load. The optimum shear force is achieved with current of 12300AMP and load of 350 kg. Those parameters is used to weld steel (with and without galvanizelayer) using the OFHC copper as interlayer with different thickness (0.1, 0.2 and 0.3mm). Theresu lts show that OFHC as interlayer reduce the shear force.