How To Weld Aluminum With A Tig Welder. But are the top choice are the following. Since youre going to weld aluminum using TIG welding youll need to choose either the DC positive or DC negative power.
To weld it you either need pure Tungsten or Zirconium Tungsten. Most high-power machines have DC capability but because of its low melting point and other special features it cannot be used to weld thin materials like aluminum. If you intend to weld aluminum with your TIG welder then the AC capability is a must-have.
Keep the torch in a steady forward-moving position with a slight backward tilt of 5 to 15 degrees.
How to TIG Weld Aluminum With AC When your TIG machine has an ACDC switch AC is the way to go for welding aluminum. The tricky part when you TIG weld aluminum is applying proper heat input. Since youre going to weld aluminum using TIG welding youll need to choose either the DC positive or DC negative power. Use an aluminum feeding kit to feed the electrodes and soft aluminum wire.