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What is the working principle of the optical fiber laser marking machine?
Apr 25, 2018


Fiber laser marking machine is composed of power supply system, laser, cooling system, optical scanning system, Q switch, focusing system and so on. AC power supply to the computer, Q switching power supply, cooling circulation pump, laser power supply, He Ne laser and other power supply. The half reverse mirror, the YAG cavity and the full reverse mirror form the resonant cavity to produce the laser. After the modulation of the Q switch, the pulse laser with high frequency peak power is formed. After the optical scanning and focusing, the laser can reach the surface of the worktable.



The surface of the worktable can be moved up and down to adapt to the workpiece with different thickness. The surface of the workpiece is on the focal plane of the laser. The computer input the inscribed text and pattern through the special marking control software, set the size of the text and pattern, the total area, the speed of the laser beam and the number of repeated times. The scanning system can move under the control of the computer, manipulate the laser beam to engraved the set of text and pattern on the workpiece. Now the software has automatic image distortion correction function, and can achieve the precision image marking.



The deionized circulating water in the cooling system will cool the Q switch and the condensing chamber to maintain a certain temperature and prevent them from burning out. The He Ne laser has two functions: one is to indicate the processing position of the laser, and the other two is to provide indication when the optical path is adjusted.



Characteristics and application range of optical fiber laser marking machine



Laser marking machine has the characteristics of short pulse, high beam quality, high peak power and so on. It has excellent application characteristics in the field of metal processing, and is suitable for many kinds of non-metallic materials, such as ABS, nylon, PES, PVC and so on. It is more suitable for application in some more precise and higher precision occasions. It is applied to electronic components, plastic buttons, integrated circuits (IC), electrical appliances, mobile phone communications and other industries.

  


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