Metallurgical Engineering > GATE 2022 > Welding
Steel plates are welded autogenously using Gas Tungsten Arc welding with an arc heat transfer efficiency of 0.65. The first weld is made using a welding current of 200 A at an arc voltage of 18 V with a welding speed of 0.002 m⋅s-1. The second weld is made at a welding speed of 0.0022 m⋅s-1 with the same arc voltage. If both the welds have identical heat input, the welding current of the second weld is _______ A (round off to the nearest integer).
Correct : 220
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