Analysis of the characteristics of three common laser cutting machines

by:Caodahai     2021-08-20
YAG laser cutting machine, CO2 laser cutting machine and fiber laser cutting machine are the three commonly used laser cutting machines. Many customers don't know much about these three types of laser cutting machines, so let's introduce them to you. YAG solid-state laser cutting machine has the characteristics of low price and good stability, but the energy efficiency is generally less than 3%. The output power of current products is mostly below 600W. Due to the small output energy, it is mainly used for drilling and spot welding and thin plate Cutting. As an emerging laser technology, fiber laser cutting machine is far less popular than CO2 laser cutting machine.   CO2 laser has a wavelength of 10.6um, which is relatively easy to be absorbed by non-metals. It can cut wood, acrylic, PP, organic glass and other non-metal materials 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 increase the cutting speed and the smoothness of the cut. The CO2 laser cutting machine can stably cut carbon steel within 20mm, stainless steel within 10mm, and aluminum alloy within 8mm.  The photoelectric conversion rate of fiber laser is as high as 25%, and the advantages of fiber laser in terms of electricity consumption and supporting cooling system are quite obvious. Its green laser beam can be applied under pulse or continuous wave conditions. It has short wavelength and good light concentration. It is suitable for precision machining, especially hole machining under pulse. It can also be used for cutting, welding and lithography, etc. . The wavelength of YAG solid laser cutting machine laser is not easily absorbed by non-metal, so it cannot cut non-metal materials. What YAG solid laser cutting machine needs to solve is to improve the stability and life of the power supply, that is, to develop a large-capacity, long-life optical pump Excitation light sources, such as the use of semiconductor light pumps, can greatly increase the energy efficiency. According to international safety standards, laser hazard levels are divided into 4 levels, and CO2 laser is the least hazardous level. Because it can transmit through optical fiber, the degree of flexibility is unprecedentedly improved, the failure point is less, the maintenance is convenient, and the speed is extremely fast. Therefore, the optical fiber cutting machine has great advantages when cutting thin plates within 4mm, but it is affected by the solid laser wavelength. The effect of it is poor quality when cutting thick plates. In the field of laser cutting machines, YAG solid-state laser cutting machines and CO2 laser cutting machines are currently showing great momentum, while fiber laser cutting machines are coming from behind. With the rapid development of the laser industry, related laser technology and laser products have become increasingly mature. The wavelength of fiber laser cutting machine is 1.06um, which is not easily absorbed by non-metal, so it cannot cut non-metal materials. In order to improve the stability and life of the power supply, the discharge stability of the high-power laser must be solved for the CO2 gas laser.   Wuhan Gaoneng Laser Equipment Manufacturing Co., Ltd. is a high-tech enterprise integrating Ru0026D, production and sales of professional laser complete sets of equipment. Not only successfully developed laser equipment with advanced technology, but also used self-support import and export rights to promote products to more than forty global products including Hong Kong, South Korea, Vietnam, Malaysia, Thailand, Australia, the United States, Japan, Germany, the Netherlands, Jordan, etc. nation.
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