While er70s 2 filler metal is a common choice for steel another popular option for welding sheet metal is silicon bronze.
Best welder for auto body sheet metal.
Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten.
It s also important to select a filler metal that is thinner than the base metal or as close as possible.
As i will prefer to call it the best mig welder for sheet metal it uses a flux core wire and self release metal inert gas while welding preventing the oxidation of the welded area.
The best way to weld sheet metal panels together is by butt welding which is joining them side by side see picture below.
Even though the miller electric manufacturing company has been making multi process welding machines for some time now and other fantastic welding products this is perhaps the best mig welder for auto body work that will handle all welding tasks.
After all so called tig welding for tungsten inert gas is also a metal inert gas welding process.
Mig welding this has become the most common type of repair and custom auto body welding.
If you also want to use the mig welder for diy projects or heavier steel structures we recommend that you look at a mig welder that operates at 230 volts.
It is softer and finishes well while reducing the heat required to weld it.
A 110 volt mig welder can work perfectly for you.
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.
Its name derives from the term metal inert gas which is really a misnomer.
The backing bar is used commonly by welders to cool the welded metals and they are generally made up of a copper or aluminum metal and clamped to the base of the weld piece whether it is just a piece of thin sheet metal or a body panel you can use it either way.
Making a patch panel take some time to make your patch a perfect fit.
It has a wide range of settings so you have every opportunity to complete your project as efficiently and cleanly as any tig welder could provide.
Since most body welds are made on sheet metal you do not need a high performance welding machine.