How To Scratch Start Tig Weld Sheet Metal

Tig welding 1 8 thick angle using the scratch start method.

How to scratch start tig weld sheet metal.

Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Tig welding sheet metal. Tig welding for sheet metal. Forget the larger 1 8 inch tungsten electrode and use a smaller one.

Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten. To weld sheet metal with solid wires use electrode positive ep or reverse polarity. Subscribe for new videos every monday and friday. No pedal to control the amps.

Notice at the end i have to quickly pull it away to break the arc and quickly put the. For aluminum the best choice is a pure tungsten rod. Your tig is likely to have the right electrode in it already. Turn on the.

Using this process enables more than effective work on thin materials as it provides high precision and high quality work. Scratch start the oldest method is scratch start. The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten. How to weld auto body sheet metal with a tig welder.

But using this method also requires some practice and practice advice in order to understand it. However this technique may cause the tungsten to enter the weld and carries the risk of contamination of the weld. Just set it and go. It works by literally scratching the surface of the workpiece to form a short circuit to start an arc.

Insert the electrode into its collet. An air cooled tig torch regulator flowmeter and argon cyl. How to weld tig welding.