Weldingcity tig welding torch wp 17 25r complete ready to go package air cool 25 foot cable 150amp.
Scratch start tig sheet metal.
There are also hand controls that can be added to tig torches.
With scratch start tig your amperage is constant and you won t have to use any sort of pedal.
This is a great way to convert your stick machine into a tig welder and you can check out our article here if that interests you.
And i know that some pieces may be really thin sheet metal and i wonder if a scratch start tig setup would be worth investing in.
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Sideways grinding marks are not nearly as much of a problem on thicker metal because.
It s almost the same as sparking a match.
Speaking of which i still need and o a setup haha.
Assuming my mig using 025 wire couldn t.
The scratch start method is probably the oldest method in existence for starting the arc.
However this technique may cause the tungsten to enter the weld and carries the risk of contamination of the weld.
It works by literally scratching the surface of the workpiece to form a short circuit to start an arc.
Weldflame wp 17fv 12r 12 ft flexhead valve 150amp air cooled tig welding complete torch.
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For applications like pipe welding using a scratch start tig setup start amperage is welding amperage.
You can start at a high amperage and get a crisp start.
Scratch start the oldest method is scratch start.
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Amazon s choice for scratch start tig kit.
So a lot of pipe welders use a 1 8 electrode even for amperages around 100 amps.
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