Oxy-fuel cutting is a process used to cut metals by combining oxygen and a fuel gas, typically acetylene. The equipment consists of a cutting torch, which mixes the gases and produces a flame that can reach high temperatures. When the flame is directed at the metal, it heats the material until it reaches its ignition point, allowing the operator to cut through it. This method is commonly used in industries such as construction and manufacturing for its efficiency and versatility. Oxy-fuel cutting can be applied to various metals, including steel and aluminum, making it a valuable technique for metalworking tasks.