Plasma cutting is a process used to cut various types of metals, e.g. steel, aluminium alloys, copper alloys, etc., where a plasma arc is used. Plasma cutting can be carried out in a mechanised manner, using numerically controlled machines, or by hand, where hand torches are mainly used. Mechanized cutting processes mainly concern cutting with the use of CNC cutters or industrial robots. The source of heat, i.e., the element that melts and thus cuts the metal, is the plasma arc glowing between the electrode and the workpiece. Plasma cutting is an advanced and effective machining method that is characterised by precision, but in this respect, it gives way to the laser cutting method, which is much more accurate, and allows you to cut irregular shapes, and leaves smooth edges, which reduces the time needed for grinding.