I would add an option to to clamp pipes so that i could use backing gas with tig welds.
Some kind of clamps that presses pipe from the sides, then it would be possible to plug both ends of the pipe.
My intention isn't whine, just my toughts.
Pipe qualification welds with tig, except fillet welds, must be weld trough and with backing gas.
Also, backing gas makes welding easier. (imo) So, that option could be possibly useful when training.
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