Forget the larger 1 8 inch tungsten electrode and use a smaller one.
Welding sheet metal tig.
Tack welding is the best way to hold the metal in place before you fully weld it to the original metal.
The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten.
Using a tig welders means that one can work on materials of 26 gauge.
Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal.
But using this method also requires some practice and practice advice in order to understand it.
Because it will have you a lot more control over the whole process and it is more forgiving in.
While sheet metal is primarily a tig welding job there are times when it s handy to have an available mig welder to fuse sheet metal.
To weld sheet metal with solid wires use electrode positive ep or reverse polarity.
This will hold it in place and allow you to weld it properly.
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Tack weld different areas of the joint about an inch apart.
For welding sheet metal in aerospace applications use a 15 cup 15 16 inch diameter.
Using this process enables more than effective work on thin materials as it provides high precision and high quality work.
How to weld auto body sheet metal with a tig welder.
It s one of the highest quality machines available and comes incredibly low priced.
Tig welding for sheet metal.
Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten.
Other sheet metal applications e g stainless steel in food service typically call for a size 7 tig cup.
The hobart handler 140 mig is the best affordable mig welder for sheet metal.