Now that I have a plasma torch and Beverly shear, I'd like to play with copper and brass.
My first concern is the lead and Zink. I'm thinking of several possibilities to protect myself: disposable welding mask, a respirator, opening the garage door and turning on a fan (cold option in Minnesota), blowing outside air (through a heat exchanger) into my hood with shop vac hose like someone here said, and some combination of the previous.
Then I get to wondering about lead dust settling on everything in the shop from sanding and polishing?
I'm also wondering about what alloys are best to use. I want to make leaves and such and be able to weld or braze them to copper or steel. The local metal supplier has 260 copper. I didn't find anything on it except one site that discussed brass 260, 70% copper and 30% zink.
I once tried to hot forge brass, which seemed stupid. It really didn't seem to get much easier to work hot, then if it got just a little too hot it would crumble like a cookie. Wouldn't welding copper with 30% zink be sort of the same? I'd expect thr zink to just burn off.
Thanks for any help ?