|
I do not have much experience mig welding large sections of auto body panel, but in general when welding thin stuff, you want to see penetration on the back side from a weld joint strength perspective. Obviously flares are not something that you need to worry about strength, but still.... I personally would be happy to have 100% penetration which will help prevent grinding through the weld leaving an unnoticed crack which will later cause rust issues or a witness line in the paint finish.
As everyone else already mentioned, you have to really jump around with very small weld beads to help control warpage even with the initial tacks.
__________________
German autos: '79 911 SC, '87 951, '03 330i, '08 Cayenne, '13 Cayenne
0% Liberal
Men do not quit playing because they get old.... They get old because they quit playing.
|