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What is Argon vs. Helium in MIG Welding about?

The document discusses the effects of different shielding gases on metal inert gas (MIG) welding performance. It finds that straight carbon dioxide produces the deepest penetration but the worst surface appearance, while addition of argon or helium significantly enhances weld bead profile and finish. Experiments show that a mixture of 80% carbon dioxide and 20% helium or 60% carbon dioxide, 20% argon, and 20% helium produces excellent weld bead profile, surface finish, and uniform penetration compared to ot

Author

Mayank Singla

Language

EN