All About Mig Welding

By Author: William Hauselberg
Total Articles: 816
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Metal inert gas (MIG) welding is a method of joining two or more pieces of metal together using equipment that is different from more traditional welding gear. MIG welding creates an arc of electricity between a conductive wire at the end of the welding torch and the pieces of metal that are being welded. The heat of the electrical arc melts the metal and the conductive wire that is coming out of the end of the welding torch. This creates a strong weld between the pieces but consumes the conductive wire, which must be constantly fed through the welding nozzle as work is performed.

The Advantages of MIG Welding

MIG welding has several benefits over other types of welding. The head of the welding nozzle distributes a layer of gas around the area being welded. This inert or semi-inert gas protects the weld point from contamination by particles that could be carried in the air. This results in a very clean weld. The technique that is required to perform MIG welding also helps to create a firm bond with a minimal amount of debris and splatter. MIG welding is not like traditional welding, however, and a MIG welding course ...
... is required to correctly use the tools.

The Disadvantages of MIG Welding

MIG welding training can be difficult for individuals who are used to traditional gas or stick welding. The welding torch must be moved in the opposite direction and the automatically fed wire can be frustrating to manage. Since MIG welding uses a protective gas barrier, welding cannot be performed outdoors or in areas with turbulent winds. MIG welding also requires that objects that are worked on are electrically grounded. This can be a problem for those without MIG welding training and can lead to damaged equipment and potentially serious injuries.

Primary Uses for MIG Welding

MIG welding is known for being a very flexible type of gas metal arc welding. It is also very fast compared to some other types of welding. MIG welding is often used in automated processes such as the production of automobiles and car parts because it is predictable and consistent. It is also used for the repair of metal structures, car parts and metal piping. The compact nature of the machine and the relative ease of a MIG welding course have made it very popular for hobbyists and other home uses. Overall, MIG welding is the most common type of modern welding that is used across nearly all industries.

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