Originally Posted by
dumbwelder
I see. I'm glad there are people who know this stuff! I think where I lose interest is, for instance, when wiring something there is 4 colors, but in some instances this particular color is one thing, but in other cases it can be different. I'm not into burning the building down by accident. Or purposefully for that matter! I'll leave that to the professionals and the insurance companies to sort out.
I remember working at a place welding forged aluminum engine blocks with a 375 amp Lincoln 'Sledge Hammer' when a salesman came in and sold us on a torch, which was a 20, good for 400 amps. Or so the story went. I believe it was a Speedway. I think it was purple. I have no idea if it would've handled that kind of heat, but for the money they charged, it better!
So what do you think? Will I be good with a 9 for .125" aluminum and no helium?