![]() There is also the possibility of developing tailor-made solutions adapted to the specific requirements of the sector and each company. Laser cutting machines allow the cutting of multiple types of metal, such as steel, stainless steel, aluminum, brass and copper, among others, as well as cutting different thicknesses according to the client’s needs. There are many other parameters that affect cut quality as well, but when all are controlled properly, laser cutting is a stable, reliable, and exactly accurate cutting process.TCI Cutting’s laser cutting machines meet the specific cutting needs of sheet metal processing and industrial cutting companies in the metal sector thanks to a wide range of state-of-the-art cutting solutions of high-end technology. 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. This distance is important because it determines where the focal point is relative to the surface of the plate. A capacitive height control system maintains an exactly accurate distance between the end of the nozzle and the plate that is being cut. On a CNC laser cutter, the laser cutting head is moved over the metal plate in the shape of the desired part, thus cutting the part out of the plate. 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. When cutting mild steel, the heat of the laser beam is enough to start a typical “oxy-fuel” burning process, and the laser cutting gas will be pure oxygen, just like an oxy-fuel torch. The high power density results in rapid heating, melting and partial or complete vaporizing of the material. Now think about focusing 6 KWatts of energy into a single spot, and you can imagine how hot that spot will get. Think about using a magnifying glass to focus the sun’s rays onto a leaf, and how that can start a fire. ![]() By focusing the large beam down to a single pinpoint, the heat density at that spot is extreme. The beam has to be precisely focused so that the shape of the focus spot and the density of the energy in that spot is perfectly round and consistent, and centered in the nozzle. Beam Focusingįocusing the laser beam can be done by a special lens, or by a curved mirror, and this takes place in the laser cutting head. Also flowing through that nozzle bore is a compressed gas, such as Oxygen or Nitrogen. The focused laser beam goes through the bore of a nozzle right before it hits the plate. It may be bounced in different directions by several mirrors, or “beam benders” before it is finally focused onto the plate. 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. ![]() In the case of a typical CO 2 laser, that wavelength is in the Infra-Red part of the light spectrum, so it is invisible to the human eye. The laser beam is a column of very high-intensity light, of a single wavelength, or color. How Does Laser Cutting Work? Beam Generation But how does light cut through a steel plate? Most people already know that the word “LASER” is an acronym for Light Amplification by Stimulated Emission of Radiation. On mild steel, stainless steel, and aluminum plate, the laser cutting process is highly accurate, yields excellent cut quality, has a small kerf width and small heat affect zone, and makes it possible to cut very intricate shapes and small holes. One way they are used is for cutting metal plates. Laser cutting technique is considered very versatile as it can cut a vast range of materials with varying thicknesses. A laser cutting machine can also be used for drilling and engraving materials. Based on the requirement, laser beam can help trim down the material or cut the material into complex shapes that conventional drills would otherwise struggle with. It is the process of cutting materials using a laser beam. An Introduction To Laser Cutting Technique What Is Laser Cutting?
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