4 ms·
This is essentially a big variable resistor - how does one apply that to arc welding?
by 0_____0 2y ago
This is essentially a big variable resistor - how does one apply that to arc welding?
- idiotsecant 2y agoWhat is it that you suppose a modern arc welding system does? Stick welding needs about 20-30 volts during the weld (60v to strike the arc if we have a fancy machine). In a modern machine we turn high voltage low current mains power into low voltage high current arc welding power. This rheostat would turn it into low voltage slightly lower current but it would still work fine for light gauge.
- 0_____0 2y agoI've done a fair bit of TIG, a little bit of SMAW. Are we talking about welding with basically reduced mains current? AC? SMAW and TIG both require current well in excess of what you can get out of a wall without tripping a breaker. I think for welding 14ga mild steel I was running at minimum 80A on the machine, but more like 130A with the foot pedal. Are you talking light gauge like as in spot welding territory?