Assume that the two 2 mm thick steel sheets are being sport welded at a current of 5500 A and current - flow time t = 0.15s. Using electrodes 6 mm in diameter, estimate the amount of heat generated in resistance spot welding. (Take RC = 250 μΩ)
1
1032 J
2
1120 J
3
995 J
4
1134 J