I'm trying to understand the process behind welding aluminum.
I think I understand the physical basis for AC TIG on aluminum, the ac tries to reduce/remove the oxide to give a clean weld. The welder manually adds filler rod and all is well;-)
My real question is how does aluminum wire feed welding work? Do you still use AC? If you don't use AC how do you keep the aluminum oxide off the weld?
What is typically used to weld Aluminum in a production environment?
How are large things like welded aluminum boats constructed?
Can some one reccomend a good background article on the basics of the different welding technologies?
Paul