Tig Welding 18 Gauge Sheet Metal

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Tig welding 18 gauge sheet metal.

Tig welding takes allot of practice to master so don t get discouraged. With the pedal i m able to fluctuate the amperage to get exactly the size weld and penetration i need. Practice on some scrap steel till you get the feel for the melting point of the steel. How to weld auto body sheet metal with a tig welder.

Because it will have you a lot more control over the whole process and it is more forgiving in. Continue the same way along the sides of the piece of sheet metal. I have a hobart 135 with 023 wire that works perfectly on 22 gauge body panels. However if you are dealing with materials that are 18 gauge or thicker one should be able to use 030 inch welding wire.

If you are working on auto body sheet metal you may want to buy a 120 volt mig welder. I use a 1 16 red electrode and either 030 or 035 tig filler rod. As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal. It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work.

For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder. Holding the tip too far from the surface will cause the wire to have to come out too far to touch the metal. Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten. Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet metal.