Welding 20 Gauge Sheet Metal With Flux Core

Mig is one of the best ways to weld 20 gauge sheet metal.

Welding 20 gauge sheet metal with flux core.

Once you have the the welder set then the trick is to keep a steady a arc. If you are using mig it s best to weld vertically down. The settings for flux core wire and non ferrous metals will be completely different. Mig welding is one of the simplest to use for welding.

Metal thickness amperage settings. Then hold the face shield with one hand over your face and the welding gun in the other. Tig welding sheet metal. When welding mild steel a good rule of thumb is to set the amperage level at 1 amp for every 0 001 of thickness.

Always wear welding gloves even during setup and cleanup to prevent cuts from metal edges. Flux core welding is a specific process that uses a hollow wire electrode fed through the welding gun and into the joint. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. When welding sheet metal you re going to want to tack your joints every 1 5 to 2 inches.

That will keep your joint from spreading on you while welding. To weld sheet metal with solid wires use electrode positive ep or reverse polarity. It has a variety of benefits over standard welding in some situations and the flux core process doesn t require a shielding gas to protect the weld pool. Forget the larger 1 8 inch tungsten electrode and use a smaller one.

It is an arc welding process that where. So if you are welding 12 gauge mild steel with a thickness of 0 100 you would set the machine at 100 amps. Mig welding for thin metal. Make sure to wear safety goggles at all times even during cleanup.

Typically the gauges run from 7 to 30 gauge. Use a hammer to tap all the spots that aren t tacked together.