Inverter Arc Welding Machines The arc of the plasma cut a 6 to 7 degree angle to the vertical face and metal fecal material?? inch or greater may very well be dressed with some electric grinder to experience a true perpendicular angle in relation to the horizontal surface. To cut using any metal by employing plasma arc system requires an arc that's created between work piece and nozzle and in addition, 50 to 60 volts is usually maintain the arc. The electrodes are negatively charged along with the work piece is pos...