Do You Know the Working Principle of Fiber Laser Cutting Machine


Fiber laser cutting machine is one of the laser cutting equipment, which utilizes light power to pierce the processing material.


In comparison with a normal light source, a laser generator has its unique character, like great directionality, monochromaticity, coherence and energy concentration. Among these factors, monochromaticity depends on frequency stability, while the best monochromaticity could be realized by the gas laser generator.


If you want to improve the quality of monochromaticity, frequency stabilization technology and mold selection technology could be adopted.


The basic operation principle is the photoelectric conversion, the laser generator is driven by electronic power, and transports the optical fiber into the cutting head.


Have you ever noticed the structure of the cutting head?


It is composed of 13 parts, including artifact, nozzle, oxygen intake pipe, nitrogen pressure gauge, lens cooling water jacket, focusing lens, laser beam, reflector, reflector cooling water jacket, servo motor, ball screw, application control and drive motor and position sensor.


Laser beam is reflected by the reflector, and then it would pass through the focusing lens and nozzle, arriving at the surface of the metal sheet or pipe. In addition, the nozzle plays a critical role in the process of cutting and engraving. The laser head could avoid being polluted by slag produced during the cutting since the nozzle could produce air while operating the machine.


It’ true that laser is the brightest light source in the world, hydrogen bombs could compare with it only at the moment of explosion. According to the scientific data, the brightest of sunshine is about 103-watt square centimeter, while the output brightness of a high power fiber laser generator could exceeds 7 to 14 magnitude.


That’s the reason why optical laser could easily reach the ultra-high temperature and high pressure at the part of the material.