Technician A says that MIG welding uses a welding filler that melts at a relatively low temperature,resulting in a minimum amount of warpage when welding, particularly in areas such as the sail panel where a large amount of filler is required for filling a seam. Technician B says that during welding, the area immediately around the weld site that may become slightly weaker from the effects of the heat is the heat affect zone. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct. The heat-affected zone (HAZ) is the area around the weld that may become weaker due to the heat of welding. Technician A's statement is incorrect because MIG welding filler does not necessarily melt at a low temperature compared to other welding processes.

Technician a Says That MIG Welding Uses a Welding Filler