How To Tig Weld Sheet Metal

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.

How to tig weld sheet metal.

Watch the welding sheet metal video and learn. Tig generates heat via an arc of electricity jumping from a tungsten metal electrode to the metal surfaces you intend to weld usually aluminum. Tig welding is one type of welding amongst a few choices you have mig stick oxyacetylene etc. Welding sheet metal is a special type of welding which requires a special technique.

But using this method also requires some practice and practice advice in order to understand it. When it comes to welding thin sheet metal like car body panels if you are not experienced and skilled enough then you can easily create a mess as blow holes in the sheet and make the metal useless. When welding steel this weld bead is laid down at around 2 500 f 1 370c. When you re welding body panels you can either mig weld or tig weld.

Tig welding for sheet metal. Then as the bead cools and solidifies it contracts but by this time the metal pieces are fused together. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Using this process enables more than effective work on thin materials as it provides high precision and high quality work.

Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten. Using a tig welders means that one can work on materials of 26 gauge. Tig welding sheet metal. 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.

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. Learn how to weld sheet metal on a car. Arc welding mig and tig entails fusing a filler metal with the materials being joined. To weld sheet metal with solid wires use electrode positive ep or reverse polarity.

S curves or welds on round things. Other sheet metal applications e g stainless steel in food service typically call for a size 7 tig cup. The term invisible weld is kind of misleading. Tig can be used to weld copper titanium even two dissimilar metals and is handy for making tricky welds e g.

That heat spreads out making the metal expand. Forget the larger 1 8 inch tungsten electrode and use a smaller one.