How To Tig Weld Sheet Metal

To weld sheet metal with solid wires use electrode positive ep or reverse polarity.

How to tig weld sheet metal.

Tig welding sheet metal. Tig welding for sheet metal. Mig welding is the easiest process to learn that has revolutionized autobody repair. Then as the bead cools and solidifies it contracts but by this time the metal pieces are fused together.

What is an invisible weld. Tig welding is one type of welding amongst a few choices you have mig stick oxyacetylene etc. The term invisible weld is kind of misleading. When welding steel this weld bead is laid down at around 2 500 f 1 370c.

In this welding sheet metal video what is meant by invisible weld is a tig weld that is ground flat planished with a dolly and auto body tool and then fine sanded so that it looks like shiny bright metal and it is not obvious where the weld is. In this article we are taking a look at how people should go about welding sheet meta l what kind of wire and shielding gas need to be used along with some tips and tricks. Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten. Welding sheet metal is a special type of welding which requires a special technique.

Arc welding mig and tig entails fusing a filler metal with the materials being joined. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Watch the welding sheet metal video and learn. Forget the larger 1 8 inch tungsten electrode and use a smaller one.

For welding sheet metal in aerospace applications use a 15 cup 15 16 inch diameter. Using a tig welders means that one can work on materials of 26 gauge. How to weld auto body sheet metal with a tig welder the best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten. S curves or welds on round things.

Tig generates heat via an arc of electricity jumping from a tungsten metal electrode to the metal surfaces you intend to weld usually aluminum. Other sheet metal applications e g stainless steel in food service typically call for a size 7 tig cup. Tig can be used to weld copper titanium even two dissimilar metals and is handy for making tricky welds e g. Using this process enables more than effective work on thin materials as it provides high precision and high quality work.

That heat spreads out making the metal expand. Learn how to weld sheet metal on a car.