The effect of having too high or too low an arc voltage is the same of having too high or too low a wire feed speed.

Question

Quizplus · Accepted Answer

While both incorrect arc voltage and incorrect wire feed speed can affect the quality of the weld, they impact it in different ways. Too high or too low an arc voltage affects the arc length and thus the bead shape and penetration, while too high or too low a wire feed speed affects the amount of filler metal deposited, leading to issues like burn-through or lack of penetration.

The Effect of Having Too High or Too Low an Arc