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CO2 laser cutting machine and fiber laser cutting machine with different process of laser cutting machine

by:Transon     2021-01-11
Due to the different physical properties of laser cutting machine, of course, both have their advantages and disadvantages, each has its own advantages and disadvantages, depending on the processing object.



fiber laser cutting machine is Yb ( Yb) Compound crystal, place it in as a medium of optical fiber, and with beam, the crystal to obtain crystal beam. Solid laser wavelength of 1. 08年μ m。 Physical properties of the different wavelength has a great influence on the processing characteristics of the two.



initially recognized the concept of optical fiber laser cutting machine, because it is a by the laser optical fiber transmission. It can be transmitted through optical fiber is the cause of its wavelength can be through the optical fiber transmission, because of its wavelength of 1. 08年μ m。 With optical fiber communication has the advantage of the optical element has a longer service life and higher maintenance performance.



from vibration oscillator to processing point, CO2 laser cutting machine laser transmission through the mirror, and usually in the light path from the outside air diffusion. Although the light path is filled with air and no ordinary dust or foreign body, but the surface of the mirror attached to the dirt after long time use, need to clean. In addition, due to the absorption of a small amount of laser energy, the mirror itself will be lost, need to change. In addition, you need to use multiple mirrors to adjust the Angle of reflection of laser, to spread to the processing point coming from the laser oscillator. Therefore, it is necessary to keep certain technical ability and the management, in order to maintain the normal operation.



however, optical fiber laser cutting machine from the point of oscillator marching to the processing and laser through a optical fiber transmission. The optical fiber is usually called optical fiber. Because do not need optical components, such as a mirror and the laser with the external air isolation of the optical fiber transmission, laser almost will not be lost, but strictly speaking, the laser in optical repeat spread around. Fiber. Therefore, optical fiber itself can run out of a little, but the life is longer than CO2 laser cutting machine in the mirror several times. In addition, if the path is higher than the minimum curvature optical fiber, are free to determine the path, so the adjustment and maintenance is very convenient.



in the laser generation process ( The laser oscillator structure) , both are different. CO2 laser oscillator by placing mixed with CO2 gas in the discharge space to produce laser. In order to ensure that derived from the normal operation of the resonance length of the laser output power, optical components is set inside the vibrator, and the need to regularly clean and replace the vibrator inside the optical components. As mentioned above, the optical fiber laser oscillator in the inner of optical fiber laser and isolated from outside air. No optical components, therefore hardly need regular maintenance.



the maintenance period of CO2 laser generator set for about 4000 hours, and the optical fiber laser generator set for about 20000 hours. As mentioned above, in terms of service life and maintenance performance, optical fiber laser processing machine has a lot of advantages, so to speak.



in addition, we can also try to compare from the perspective of operating costs, such as power consumption. It is said that the CO2 laser oscillator photoelectric conversion rate is about 10 - The photoelectric conversion rate of 15%, while the fiber laser is about 35 - 40%. Photoelectric conversion rate is high, so is converted to electrical energy to reduce heat dissipation, and fiber laser machine can be cooler cooling devices such as power consumption control much lower. Usually, the optical fiber laser processing machine vibration generator cooling temperature management of oscillator accuracy is higher than CO2 generator, but the vibration of the fiber laser processing machine in terms of laser power output is the same. CO2 laser oscillator 1/2 to 2/3 of the cooling capacity is enough. Therefore, considering the power consumption of all device laser processing machine, fiber laser machine can in about a third of the power consumption of the CO2 laser processing machine, it is very energy saving of the laser cutting machine.
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