Introduction of laser generator of laser cutting machine

by:Caodahai     2021-08-25
The development of laser cutting machines has now been subdivided into many different types of cutting equipment. The mechanism of the laser cutting machine is composed of a laser generator, an (external) beam transmission component, a workbench (machine tool), a microcomputer numerical control cabinet, a cooler, and a computer (hardware and software). Although the types of cutting machines are different, the cutting principle is the same, mainly because the laser generator is different. Let's introduce it below. The fiber laser is doped with the pump material into the fiber, and the laser of a specific wavelength emitted by the semiconductor laser is coupled. Make the optical fiber produce laser light. The advantage is that the model is good, which is conducive to cutting. The photoelectric conversion rate is as high as twice that of carbon dioxide. And it has an advantage when cutting sheet metal, because the light emitted by the fiber laser has a wavelength of 1064 nanometers, so the absorption rate is higher. The focus of fiber cutting is relatively sensitive, so thick plates are not easy to cut. In addition, the power of existing fiber lasers is relatively small, so the speed of cutting thick plates is slow. For the purpose of laser cutting machines, except for a few occasions, YAG solid-state lasers are used. , Most of them use CO2 gas lasers with higher electrical-optical conversion efficiency and higher output power. Because laser cutting machines require high beam quality when working, not all lasers can be used for cutting. Now the general solid-state lasers are YAG basically without ruby, which is the first generation of lasers in China, with low efficiency and high cost. Generally speaking, the absorption of YAG by metal objects is better than the absorption of carbon dioxide laser, because their wavelength is just an order of magnitude worse. However, the laser photoelectric conversion efficiency of YAG is not as high as that of carbon dioxide. Therefore, the same output power will consume more energy. For the same input, the actual output of carbon dioxide is of course larger, but it does not mean that the processing effect is better. Their general structures and uses are different. One is a gas laser, the other is a solid-state laser, the other is a high-power tens of thousands of watts, and the other is generally several tens of hundreds of watts. 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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