Welding Aluminium Dc Tig. But it is still possible to TIG weld aluminium with direct current also called DC. Ad China Welding Machine Tig.
Direct current is the only way to do it. So figured Id post something about it and see what all you welders around the world have to say. The YesWelder TIG 250P ACDC welder is a great unit for welding aluminum.
You can also get pretty good results on the 1100 series pure Aluminum and 2219 specialty alloy.
Ad China Welding Machine Tig. Helium increases penetration but a higher flow rate is required. Output 60 duty cycle and can cut aluminum up to 38 thick. Argon is used at a lower flow rate.