When mig welding a patch panel onto your car you need to leave a small gap between the patch panel and the original metal.
Mig welding 16 gauge sheet metal settings.
To weld mild steel choose an american welding society classification wire such as er70s 6 which has a weld puddle that wets out nicely.
Mig welding electrode selection chart.
It should also be set in the position that you will be welding in.
Mig welder settings for sheet metal.
When the material is 18 gauge and thicker you may be able to use a 030 inch wire.
The gap is to compensate for expansion when the metal gets hot.
For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder.
Material thickness determines amperage.
This small gap will be filled in by the weld puddle.
So if you are welding 12 gauge mild steel with a thickness of 0 100 you would set the machine at 100 amps.
Learn how to mig weld automotive sheet metal in about 5 minutes or less.
Continue the same way along the sides of the piece of.
Holding the tip too far from the surface will cause the wire to have to come out too far to touch the metal.
Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet metal.
If you take your time following these steps then you will have a much easier time welding.
Test your settings on a piece of scrap metal that is very close to the thickness of the metal that you will be welding.
When good results are achieved record the parameters.
For mig welding sheet metal.
As a guideline each 001 inch of material thickness requires 1 amp of output.
Say if you are welding an 18 gauge stainless steel sheet that is 2 2 feet in size to repair the side of your tank start by creating a weld that is 1inch long then skip 6 inches and then create a 1 inch long weld.
Joint design position and other factors affect results and settings.
I keep it short and to the point in this welding instructional video and show how ve.
It s recommended to use a 023 or 024 inch wire for most light gauge sheet metal work.
125 inch 125 amps.
Test fit the panel until only an even 1 16 gap is left around the patch.
Metal thickness amperage settings.