mig Welding

MIG Welding (Metal Inert Gas) or Gas Metal Arc (GMAW) is a welding process in which an electric arc forms between a wire electrode and the work piece. The wire is fed through a torch known as a gun surrounded by an inert gas.  Carbon dioxide is the preferred gas used for steel applications with a mixture of 75% Argon and 25% helium used for aluminum welding. The inert gas shields the weld from contaminants in the air. MIG welding is a much faster form of welding but limited to welding materials that are similar in thickness. Once the machine is setup for a particular job or workpiece the welder can perform the task of welding all day with little or no adustments to the machine. This type of welding is the best process for doing high production jobs of the same alloys and material thickness. MIG is the easiest form of welding to learn and can be taught quickly as long as the operator has good eye-hand coordination.