Question

Q58. Spot welding is used for
(A) Thin sheets(10-12 mm thickness)
(B) Rough and irregular surfaces
(C) Thick sections
(D) Castings Only​

Answer 1

Answer: Here is your answer

Explanation:

Spot welding is primarily used for joining parts that are normally up to 3 mm in thickness. Thickness of the parts to be welded should be equal or the ratio of thickness should be less than 3:1. The strength of the joint depends on the number and size of the welds. Spot-weld diameters range from 3 mm to 12.5 mm.