How To Tig Weld Aluminum With Dc. He’s put together a great video that walks you through the details. This page focuses on welding aluminum with a dc tig welder, electrode negative (dcen), argon, and flux.
A tig welder basically comes with both ac and dc power options. Not the best place for this. The dc (direct current) is suitable for welding thicker materials like steel and stainless steel.
Tig welding aluminum with a straight current can be tricky, but these tactics can help you get it done.
This also determines the types of materials you will be able to work on. Since you’re going to weld aluminum using tig welding, you’ll need to choose either the dc positive or dc negative power. In order to weld aluminum one needs to remove the oxide layer. A tig welder basically comes with both ac and dc power options.