95% of them can't. Aluminum requires AC Arc. Some say they can do aluminum by Scratch Starting. I've seen it done, but don't realy understand the process. Anyone want to enlighten me?

 

Mine does not do aluminum.

 

damn =/ all aluminum tig welders cost a shitload of cash

 

I recently bought a Thermal Arc 185TSW, darn good buy for an ac/dc tig machine. One of the best things I have bought lately. I have not welding much aluminum with it yet as I have been to busy using it for other things. But the few times I have it has worked very well.
Here is a practice weld I did yesterday.


Later
Randy

 

^^ that looks hella good. lets see some pics on the inside of the penetration

 

i say there isn't much point in getting a tig if you skimp out on the ac. otherwise, you could just get by with a mig. i bought a miller 180sd in the spring and glad i spent the extra to be able to do aluminum. why keep buying stuff? just get it once.