Plasma cutting technology was developed in the second part of the XX century. It is different from other existing technologies: plasma cutting does not require any additional equipment, as the metal cutting occurs by the plasma flow.
The operating process is as follows: an electric arc gets formed in the space between the nozzle and the metal. Simultaneously, plasma-forming gas is supplied, the high temperature and pressure transform it into a stream with a temperature of several thousand degrees (depends on the type of metal).
The max thickness of the metal can be up to 200mm, the plasma temperature can be 5000 -30 000 degrees. The gas used for cutting can be either active gas (oxygen) or inactive gas.