How To Weld Sheet Metal With A Mig Welder

For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder.

How to weld sheet metal with a mig welder.

Mig is one of the best ways to weld 20 gauge sheet metal. Forget the larger 1 8 inch tungsten electrode and use a smaller one. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Holding the tip too far from the surface will cause the wire to have to come out too far to touch the metal.

To weld sheet metal with solid wires use electrode positive ep or reverse polarity. Sheet metal has usage in sectors like making automobiles airplane wings and fuselages roofing and medicinal tables. Mig welding is one of the most appropriate methods used for sheet metal. The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder.

Keep in mind during the welding process it is important to direct the arc right at the center of the weld puddle and don t do movements like whipping or weaving. Mig welding is one of the simplest to use for welding. When starting to learn auto body sheet metal welding with a mig welder you should opt for a shielding gas that has a higher proportion of argon gas. Mig welder settings can vary substantially from model to model and certainly from brand to brand.

This method is favorable as it leaves room. It is an arc welding process that where you feed a solid wire electrode through a. Tig welding sheet metal. September 10 weldpros mig welding for sheet metal.

When mig welding sheet metal it is important to set the proper parameters to prevent warping and burn through or else it will create excess heat and easily blowholes on the metal. This article is more a general guideline to help the novice welder understand how the various settings will affect your results. The two most commonly used methods for welding sheet metal are mig and tig methods. Mig welding is the preferred method for most automotive bodywork and since sheet metal is the thinnest of metals a large expensive mig unit is usually not required.

Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet metal. However in some cases spot welding is also utilized. Unlike welding with a stick welder mig welding is a semi automatic process. Never go for a thinner base metal for the auto body sheet welding to get the best result out of it.