- DC TIG Welding is suitable to stainless steels, mild steels, bronze alloys, titanium, low alloy steel, etc. - AC TIG Welding is suitable to aluminum alloys, magnesium, brass, etc. - Mixed TIG Welding, a combination of each advantage of AC and DC TIG Welding, controls DC waveforms periodically among AC waveforms. It is wuitable to light alloys and...