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Metal Gas Metal Arc Welding (GMAW), commonly known as MIG (Metal Inert Gas) welding, is a welding process that uses a consumable wire electrode and a shielding gas to join metal components. Here's a simple explanation:

Wire Electrode:

GMAW uses a continuously fed wire electrode, usually made of the same material as the workpieces.

Shielding Gas:

A shielding gas, such as argon or a mixture of argon and carbon dioxide, is used to protect the weld pool from atmospheric contamination.

Arc Formation:

An electric arc is created between the wire electrode and the workpiece, melting both the electrode and the metal surfaces to be joined.

Molten Weld Pool:

The molten metal forms a weld pool, and the consumable wire is continuously fed into the pool to provide additional material for the weld.

Solidification:

As the weld pool solidifies, it forms a fused joint between the workpieces.

Applications:

GMAW is versatile and widely used for welding various materials, including steel, aluminum, and stainless steel.

Automatic Feeding:

The wire electrode is automatically fed through a welding gun, allowing for a continuous and efficient welding process.

Advantages:

High deposition rates.

Suitable for both thin and thick materials.

Can be automated for increased productivity.

Generally provides a clean and aesthetically pleasing weld.

In simple terms, Metal Gas Metal Arc Welding (GMAW) or MIG welding is a process where a continuously fed wire electrode and a shielding gas are used to create an electric arc, melting the metal surfaces and forming a welded joint. It is a versatile and widely used welding method in various industries.

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