Settings For Mig Welding Sheet Metal

I keep it short and to the point in this welding instructional video and show how ve.

Settings for mig welding sheet metal.

When welding thin metal the main objective is to avoid warping burn through and excessive heat affected zones while still ensuring the weld has enough mechanical strength for the application. Metal thickness amperage settings. 125 inch 125 amps. 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.

The following basic guidelines are for mig welding steel with solid wire. Joint design position and other factors affect results and settings. In most cases a mig welder will utilize dc direct current. Material thickness determines amperage.

How to adjust a mig welder voltage settings. 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. For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder. Keep in mind during the welding process.

Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet metal. When good results are achieved record the parameters. Welding car panels if you are welding a large panel then the expansion of the metal during welding is likely to cause the panel to distort. Andy gives helpful insights and tips to mig weld thin sheet metal.

Your machine s electrodes are responsible for leading the electricity flow from the metal into the welding handle. Tig welding is the way forward for metal under 0 6mm and a mig welder with decent power and wire control is needed for anything less than 0 8mm. Therefore the voltage setting will decide how deep the welding torch penetrates through the material and also the quality of the welding joints. Mig welder settings for sheet metal.

The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder. When welding mild steel a good rule of thumb is to set the amperage level at 1 amp for every 0 001 of thickness. So if you are welding 12 gauge mild steel with a thickness of 0 100 you would set the machine at 100 amps. Holding the tip too far from the surface will cause the wire to have to come out too far to touch the metal.

Learn why mig pulsed mig tig and pulsed tig are the ideal choices when welding sheet metal.