MIG Welding
What is MIG welding?
Metal inert gas (MIG) welding is an arc welding process used to join two base materials. A continuous wire electrode is heated and an electrical arc forms between the electrode and the base metal. The welding gun feeds a shielding gas — typically argon or carbon dioxide — alongside a solid wire electrode to protect the welding pool from contaminants.
Where is MIG welding used?
MIG welding is most commonly used to repair cars, motorbikes, recreational vehicles, vans, and more. This process can produce a strong weld between very thin materials, which makes it ideal for interior and exterior vehicle assembly and repair.
What’s the difference between MIG and TIG welding?
While metal inert gas (MIG) and tungsten inert gas (TIG) welding both use an electrical arc to perform the weld, they utilize different electrode wires. MIG welding uses a continuously fed electrode wire and the shielding gas is fed through a hand-held torch. TIG welding, on the other hand, uses a consumable tungsten electrode, and its shielding gas is fed through a supply line and a separate, hand-held filler rod.
These two processes serve different purposes in the welding industry, depending on the strength and thickness of materials being joined. MIG welding is often considered the simpler weld, and it is easier to learn due to the continuously fed electrode. TIG welding is a slower process and it is more difficult to perfect, but it often produces welds that are cleaner and look more finished.
Learn more about Goodwin University’s Welding certificate program today!
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