Plasma cutting, when combined with different working gases, can cut various metals that are difficult to cut with oxygen cutting, especially non-ferrous metals (stainless steel, aluminum, copper, titanium, nickel). Its main advantage lies in its high cutting speed, particularly when cutting thin carbon steel sheets, where it can reach speeds 5-6 times faster than oxygen cutting. It also produces a smooth cut surface, minimal thermal deformation, and virtually no heat-affected zone. (The working gas is the conductive medium of the plasma arc, the heat carrier, and also removes molten metal from the cut.)
Most plasma power supplies have an arc ignition signal, an arc ignition success signal, and an actual arc voltage output.
Arc ignition signal: This is an input signal, essentially our start signal.
Arc ignition success signal: (This is what the plasma itself detects after successful arc ignition and outputs a switching signal). However, some plasma systems do not have this function; this should be noted when communicating with customers.
Actual arc voltage output: During operation, the plasma system detects the actual arc voltage between the cutting edge and the cutting plate, which is used to power external automatic voltage adjustment systems.
