The flanges must be at least equal to the thickness of the metal.
Welding sheet metal to plste.
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Butt weld vs lap weld.
A lap weld is much easier than a butt weld but doesn t seal correctly and will promote moisture from the back side.
This restraint creates high residual tensile stress that causes the weld to act like a stretched rubber band with the workpiece holding the ends figure 1 for this reason when the clamps that hold the workpiece are removed the base metal is allowed to move or spring.
I m welding very t.
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Forget the larger 1 8 inch tungsten electrode and use a smaller one.
While wire feed welding sheet metal go for short bursts of welding instead of a going on a long bead.
The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder.
Just grab a piece of sheet metal to get the heat set correctly and go to town.
The weld wants to shrink as it cools to room temperature but is restrained from doing so by the adjacent cold base metal.
Tig welding sheet metal.
Stick welding super thin sheet metal welding thin metal.
Welds in sheet metal up to 1 16 in.
To weld sheet metal with solid wires use electrode positive ep or reverse polarity.
This is the thinnest sheet metal i have ever welded using this process.
Short bursts or tacks will help.
A good heat setting for 1 8 6011 rods on thin material is about 80 90 amps.
An overlapping joint.
Lap welds are used when quick results are needed.
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.
Everyone is different but those settings will get you in the right ballpark to weld sheet metal.
Try going for a wire of 023 inches when welding sheet metal.
1 6 mm thick can be made satisfactorily by flanging the edges at the joint.
For welding purposes the term sheet metal is restricted to thicknesses of metals up to and including 1 8 in.
For 3 32 7018 s it s about the same.