Plasma cutting, or plasma arc cutting, is a fabrication process that uses superheated, ionized gas to cut metal into custom shapes and designs. The plasma torch utilizes a copper nozzle to constrict and focus the stream of plasma. The nozzle contains an electrode that creates an arc between the electrode and the material to be cut. The compressed gas stream, combined with the electrical charge running through it, creates an intense, highly accurate stream capable of quickly and easily creating precision cuts in most metals.