Using a self-shielding method with flux core wire has a number of advantages for the home hobbyist or infrequent user. ![]() Since gas is released in this way, an external cylinder of gas isn’t required, simplifying the rig and the process. So-called “gasless” methods use a special flux core wire that is self-shielding, converting the flux to gas as the wire melts. So how can there be “gasless” MIG welding? Technically, there’s no such thing. It actually requires gas for shielding: the gas involved in the welding process prevents the molten welding pool from interacting with the surrounding gases in the air. “MIG,” short for metal inert gas, actually tells a lot about this method of welding. ![]() But you can-and should-consider using a “gasless” MIG method at home for smaller projects-and a smaller impact on your wallet. Do you need gas to weld? For big welding projects, yes. And then there’s the question of welding with or without gas. ![]() If you’re new to welding or primarily a hobbyist, choosing a welding method and the necessary equipment can feel overwhelming.
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