Shielding Gas For Mig Welding Aluminum. The four most common shielding gases used in MIG welding are Argon Helium Carbon Dioxide and Oxygen. A Argon Helium.
Setting Up The Shielding Gas. Pure argon is the most popular shielding gas and is often used for both gas metal arc and gas tungsten arc welding of aluminum. The shielding gas provides the gas needed for MIG welding.
FLOW RATE FOR ALUMINUM MIG WELDING.
Each provides unique benefits and drawbacks in any given application. Or Argon O2. Pure argon is the preferred shielding gas for welding thin sections of aluminum. This gas is good for shielding welds in the flat position and in deep groves.