Learn nothing, they have welders now that are wire feeds and have charts right on the panel under the power setting that tells you where to spin the dials to and you can weld anything with them, I think they're like 3K for a base, don't quote me but my uncle is a pro welder and cert for every metal known to man, he says its idiot proof and can weld almost anything, he stopped using his heliarch and tig welder in favor of it, I assume if you have something tricky just need a different wire spooled through it.