A lot of people have told me that you can’t weld galvanized for two reasons: the fumes will make you sick, and the galvanized coating ****s with the weld.
I make sure I have positive ventilation, I push the weld, and I keep the arc from touching the galvanization and let the weld puddle flown into the galvanized metal. Beer also helps.
You also can’t really swirl or agitate the weld puddle. Pushing the weld uses the shielding gas to push the burning fumes away from the weld puddle. If the arc touches galvanization it will sputter and pop. Keeping the garage door cracked 8” with the torpedo heater going will create enough positive venting to draw the fumes away from the weld puddle (and me) just enough to not draw the shielding gas away too quickly.
#tipsandtricksfrom****inhicks