How To Weld Aluminum Tungsten. A TIG welder basically comes with both AC and DC power options. Pure tungsten DC only.
Learn About Tungsten for TIG Welding Aluminum. Tungsten Inert Gas TIG aluminum welding refers to the use of a non-consumable tungsten electrode to deliver current to the welding arc. Sharpen one side of the pure- tungsten electrode to a spiky tip using a bench grinder.
Red tungsten is also preferred for DC welding using straight polarity or electrode negative on nickel steel stainless steel and titanium.
You should select the perfect color size and shape. Make sure you use a tungsten electrode large enough in diameter to carry the welding current you plan to use. Again let the electrode rest. Use a pure tungsten or zirconiated tungsten electrode when AC welding aluminum.