Mig Welding Wire Size For Sheet Metal

From automotive parts to fabricated structures shipbuilding metal buildings and sheet metal applications all have often reaped benefits from the switch to mig wire.

Mig welding wire size for sheet metal.

In this video we cover which size welding wire you should use when to change sizes and how to adjust your mig welder machine settings for different wires. Learn how to mig weld automotive sheet metal in about 5 minutes or less. Mig welding sheet metal always use the smallest wire diameter possible since smaller wires take less heat to melt and heat the metal less. I keep it short and to the point in this welding instructional video and show how ve.

Holding the tip too far from the surface will cause the wire to have to come out too far to touch the metal. The material also determines the wire size and material as well as the gas needed. Advantages include slag free welding with less clean up even in multiple pass operations. For mig welding sheet metal it is often recommended to use an electrode wire of the smallest diameter to prevent burn through and warping.

For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder. Small wires also provide more control over the weld bead and a better chance of recovering from mistakes due to lower deposition rates. The main reason to use a smaller diameter wire is that it takes less heat for melting and hence the metal around the weld is not heated to a very great extent. The metals that can be welded with a mig machine can be grouped into three basic classifications.

The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder. The type of metal that you will be welding has a great influence on mig welder settings.