The cleaning action by electrons leaving the surface of the metal is most important when welding on ____.

Question

Quizplus · Accepted Answer

The cleaning action by electrons leaving the surface of the metal is most important when welding on aluminum. This is because aluminum has a thin, impervious oxide layer that must be removed before welding. The electrons leaving the surface of the aluminum help to remove this oxide layer, allowing for better bonding between the two metal pieces being welded together.

The Cleaning Action by Electrons Leaving the Surface of the Metal