Tig welding sheet metal.
How to weld sheet metal with a arc welder.
The heat produced by the short circuit along with a non reactive hence inert gas locally melts the metal and allows them to mix together.
Yes arc welding sheet metal is difficult tedious and probably a bit insane but it is feasible.
Disclaimer due to factors beyond the.
As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal.
If you are new to welding and only have room.
It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work.
I would compare it to performing plastic surgery with butcher knives.
So you can keep the other hand free for manipulating your materials and other tools.
Try going for a wire of 023 inches when welding sheet metal.
Now you know the secret of arc welding thin metal sheets.
Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal.
That makes this a one handed process.
Any arc welding process general recommendations the best way to weld galvanized steel regardless of welding process is to remove the zinc coating from the joint.
A standard arc welder is undoubtedly the best way to weld galvanized steel.
Removing the coating and re spraying or painting the weld seam after welding to regain corrosion resistance.
A wire feed or tig welder is ideal for sheet metal but we will assume that you don t have one.
The real trick to weld sheet metal is to use a wire feed.
This adds two operations.
How to weld thin gauge steel similar to car body panel down to 8mm or 1 32 of an inch thick with arc or stick welder.
Forget the larger 1 8 inch tungsten electrode and use a smaller one.
There is occasionally splatter from the spread of the arc.
Short bursts or tacks will help.
Just kidding this tip is to explain how to weld sheet metal with a stick welder.
Mig or metal inert gas welding aka gas metal arc welding or gmaw also uses a gas shield and filler material however in this case the filler is a wire fed directly through the welder.
For sheet metal i use ine welding wire and it is just as good as their flux cored wire if you want you can grab one here.
Mig welding uses an arc of electricity to create a short circuit between a continuously fed anode the wire fed welding gun and a cathode the metal being welded.
We need to establish what is considered thin metal.
Arc welding is a versatile method that uses alternating currents to create a high heat arc that melts your flux.
To weld sheet metal with solid wires use electrode positive ep or reverse polarity.
