What Type Of Gas For Mig Welding Aluminum. However GMAW uses a mechanical wire feeding system. It requires the base metal to be thoroughly cleaned and the moment that the aluminum hits the air it begins oxidizing again immediately.
If you normally MIG weld mild steel using C25 gas dont worry you can use the same gas hose and your regulator designed for Argon gas. Inert gases like noble gases resist chemical reactions which means less weld spatter compared to semi-inert gases like carbon dioxide. For a pure 100 percent argon shield gas a flow rate of 20 to 30 cubic feet per hour is recommended when welding aluminum Shield Gas.
The 4 common gases used for MIG welding are generally Argon Helium and Carbon Dioxide since any kind of mixture normally revolves around these 4 gases.
Ad Find China Manufacturers Of Aluminum Welding. 050819Metal inert gas MIG welding uses a consumable wire electrode and shielding gas which is continuously fed through a welding gun. Because aluminum is a non-ferrous metal it requires a 100 percent argon shielding gas. Gas metal arc welding GMAW commonly referred to as metal inert gas MIG welding is another common method used for aluminum welding.