The process works by having a focused and precise laser beam run through the material that you are looking to cut, delivering an accurate and smooth finish. This article will describe the laser cutting process and how it works. Laser cutting is a digital manufacturing technology, working on 2D vector files. In the case of a typical CO2 laser, that wavelength is in the Infra-Red part of the light spectrum, so it is invisible to the human eye. If the focal point is even slightly too low or too high, it can alter the quality of the cut. Laser cutting is a type of thermal separation process. How Fibre Lasers Work Light out of glass. CO2 lasers produces a beam of infrared light to cut and engrave flat sheet materials, see one in action here: Laser cutting uses a computer to direct light at the material to be cut. The dot of the fiber laser beam can be made incredibly small, perfect for applications such as laser cutting. Initially, the beam pierces the material with a hole at the edge, and then the beam is continued along from there. This thermal cutting process is favored for a variety of applications and particularly useful with soft and mild metals that are prone to excess damage from more traditional cutting tools. The narrowest part of the focused beam is generally less than 0.0125 inches (0.32 m… This is a quick and easy way to replicate the same design on different materials, or create multiple copies of the same object. Cut quality can be affected by raising or lowering the focal point from just above the surface of the plate, at the surface, or just below the surface. When cutting stainless steel or aluminum, the laser beam simply melts the material, and high pressure nitrogen is used to blow the molten metal out of the kerf. This distance is important, because it determines where the focal point is relative to the surface of the plate. But how does light cut through a steel plate? Laser-guided robots are used to cut fabrics and metals that were once cut by hand. In order create the necessary files, designers will have to use a vector based program, like Adobe Illustrator. The laser burns away or vaporizes the material, leaving the desired shape behind. Welding varies in methodology and requirements for each material. Th… Cutting Systems Also flowing through that nozzle bore is a compressed gas, such as Oxygen or Nitrogen. While the quality remains high, so too does the level of power that the fiber laser beam delivers. The laser cutter is one of the most useful tools in a modern shop. If you've ever seen a laser pointer projecting a spot onto a screen, you'll realise that a laser … Lasers can etch and cut through many different materials. It's no doubt thanks to these sorts of stories that we now associate lasers with futuristic warfare and sleek spaceships. The beam has to be precisely focused so that the shape of the focus spot and the density of the energy in that spot are perfectly round and consistent, and centered in the nozzle. The Fibre Laser uses the same physics principles as any other laser, but there are several properties that make it special, and very useful. So how does the light come out of the cavity? Laser light - a special wave. The beam is only about 3/4 of an inch in diameter as it travels from the laser resonator, which creates the beam, through the machine’s beam path. The laser light is so high powered, that when focused, it raises the temperature of the material to be cut high enough to melt or vaporize the material, in the small area the beam is focused. The laser beam is a column of very high intensity light, of a single wavelength, or color. In the case of a typical CO2 laser, that wavelength is in the Infra-Red part of the light spectrum, so it is invisible to the human eye. 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