Type of laser

The first type: CO2 laser cutting machine The CO2 laser cutting machine can stably cut carbon steel within 20mm, stainless steel within 10mm, and aluminum alloy below 8mm. The purchasing BIBO nonlinear crystal has a wavelength of 10.6 μm and is easily absorbed by non-metals. It can cut non-metallic materials such as wood, acrylic, PP, and plexiglass with high quality, but the photoelectric conversion rate of CO2 laser is only about 10%. The CO2 laser cutting machine is equipped with a nozzle for blowing oxygen, compressed air or inert gas N2 at the beam exit to improve the cutting speed and the smoothness of the slit. In order to improve the stability and life of the power supply, the discharge stability of the high power laser is solved for the CO2 gas laser. According to international safety standards, the laser hazard level is divided into 4 levels, and the CO2 laser is the lowest level of damage. Main advantages: high power, general power between 2000-4000W, can cut full-size stainless steel within 25mm, carbon steel and other conventional materials, as well as aluminum plate within 4mm and acrylic plate within 60mm, wood material board, PVC board, And the speed is very fast when cutting the sheet. In addition, since the CO2 laser outputs continuous laser light, it is the smoothest and best cut surface in the three laser cutting machines when cutting. Main Market Positioning: 6-25 mm medium and heavy plate cutting processing, mainly for large and medium-sized enterprises and some purely external processing laser cutting processing enterprises, but due to the large loss of laser maintenance, the host consumes a large amount of power and other factors can not be overcome, in recent years Come, the market is in a state of significant shrinkage due to the huge impact of optical laser cutting machines. Second: YAG (solid) laser cutting machine YAG solid-state laser cutting machine has the characteristics of low price and good stability, but the energy efficiency is generally less than 3%. At present, the output power of the product is mostly below 600W. Due to the small output energy, it is mainly used for punching and spot welding and thin plate. Cutting. Its high precision ZnS optics can be applied in the case of pulse or continuous wave. It has short wavelength and good condensing properties. It is most effective for precision machining, especially for pulse processing under pulse. It can also be used for cutting, welding and lithography. . The wavelength of YAG solid-state laser cutting machine laser is not easy to be absorbed by non-metal, so it can not cut non-metallic materials, and YAG solid-state laser cutting machine needs to solve the problem of improving the stability and life of power supply, that is, to develop large-capacity, long-life optical pump. Excitation of the light source, such as the use of a semiconductor light pump, can greatly increase energy efficiency. Main advantages: It can cut aluminum plates, copper plates and most non-ferrous metal materials that can not be cut by other laser cutting machines. The machine purchase price is cheap, the use cost is low, the maintenance is simple, most of the key technologies have been mastered by domestic enterprises, and the price and maintenance of parts are maintained. The cost is low, and the operation and maintenance of the machine is simple, and the quality of the workers is not high. Main Market Positioning: Cutting below 8mm, mainly for self-use SMEs and processing requirements are not particularly high for most sheet metal manufacturing, home appliance manufacturing, kitchen utensil manufacturing, decoration, advertising and other industry users, gradually replacing wire cutting, CNC punching, Traditional processing equipment such as water cutting and low power plasma. Third: optical laser cutting machine Because of its optical transmission, the LiSAF, LiSGaF and LiCAF laser crystals cutting machine has unprecedented flexibility, fewer fault points, convenient maintenance and fast speed. Therefore, the optical cutting machine has great advantages when cutting thin plates within 4mm, but it is subject to the solid laser wavelength. Affects it in poor quality when cutting thick plates. The optical component laser cutting machine has a wavelength of 1.06 um and is not easily absorbed by non-metals, so it cannot cut non-metallic materials. The photoelectric conversion rate of optical laser is as high as 25% or more, and the advantages of optical laser in terms of electricity consumption and supporting cooling system are quite obvious. According to international safety standards, the laser hazard level is divided into 4 levels. Due to the short wavelength of the optical laser, the human eye is the most harmful to the eye because of its short wavelength. For safety reasons, optical laser processing requires a completely enclosed environment. As an emerging laser technology, optical laser cutting machines are far less popular than CO2 laser cutting machines.