Oxy-fuel cutting is very popular on CNC machines for cutting shapes out of steel plates and is a widely applied industrial thermal cutting process as it can cut through thicknesses of 0.5mm to 25mm.
The Oxyfuel cutting equipment is usually low cost and can be operated manually or mechanised. The machines come with varied fuel gas and nozzle design options that help improve performance in terms of cut quality and cutting speed.
It involves 3 stages of Preheating - Piercing - Cutting
The area to be treated is preheated and a jet stream of pure oxygen is directed to it resulting in a vigorous exothermic chemical reaction between the metal and the O2 to form an oxide or slag, also referred to as "rapid rusting". The jet pierces through the material continuing to cut it and depending on the plate's thickness it can take anywhere from a fraction of a second up to several seconds. The resultant slag is continuously blown away by the oxygen jet.