What is Laser Cutting?
Laser cutting, which originated in the mid-1960s, is a cutting process characterized by the use of an amplified laser as a "cutter" and the use of computer numerical control (CNC) programs to perform the cutting operation.
The main types of lasers used in laser cutting are CO2, Neodymium (Nd), Yttrium Aluminum Garnet (Nd:YAG), and Fiber Lasers. Each of these lasers has its own advantages and disadvantages, for example, CO2 lasers are ideal for cutting and engraving, Nd lasers are better suited for cutting applications that require a large amount of energy, and Fiber lasers are replacing the other lasers for an ever wider range of applications.
What is plasma cutting?
Originating in the 1950s, plasma cutting is another cutting method characterized by the use of a plasma torch. The plasma torch generates a plasma heat stream capable of melting materials hard enough to be cut.
Instead of using fire or flame, plasma cutting uses an electrically conductive ionized gas, also known as plasma. Plasma can reach very high temperatures, such as 20,000 degrees Celsius.
Workers who perform plasma cutting must wear proper personal protective equipment to prevent the development of arcing eye, also known as photokeratitis or ultraviolet keratitis, which is an injury that occurs when a worker's eyes are exposed to high doses of radiation. Since plasma torches emit radiation, workers must wear goggles.
Both laser cutting and plasma cutting cut metal workpieces; they work in completely different ways. Laser cutting uses an amplified laser light, while plasma cutting uses plasma.
