Tech Tips: Shielding Gas Selection for MIG Welding (an Excellent Lincoln Electric Video)

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October 11th, 2012

Shielding gases are inert or semi-inert gases that are commonly used in several welding processes, most notably gas metal arc welding and gas tungsten arc welding (GMAW and GTAW, more popularly known as MIG and TIG, respectively). Their purpose is to protect the weld area from atmospheric gases, such as oxygen, nitrogen and water vapor. Shielding gas can play a big role in the appearance of your weld and the cost of your project. Just watch the Lincoln Electric video below to find out why selecting the right gas for MIG welding matters.

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