During the long-term use of the fiber laser cutting machine, there are some more or less losses, such as slow cutting speed and poor cutting accuracy. Many people think that the laser power has decreased. There are many reasons that affect the power drop of the laser cutting machine, not necessarily the problem of the laser. Qingyuan laser helps you analyze the reasons for the power drop of the fiber laser cutting machine:
1、 Focal position, which affects the cutting accuracy, especially the diameter of the focal spot. The focal spot diameter should be as small as possible to produce a narrow slit; The focal spot diameter is proportional to the focal depth of the focusing lens. The smaller the focal depth of the focusing lens, the smaller the focal spot diameter.
2、 The distance of the nozzle and the distance between the workpiece and the nozzle also affect the power drop of the fiber laser cutting machine. Too far away will cause unnecessary waste of kinetic energy. Too close will affect the dispersing ability of splashed cutting products. The appropriate distance is 0.8mm In addition, the optical fiber laser cutting machine cuts the workpiece with uneven surface mainly by its follow-up adjustment, and the height of the nozzle and the workpiece should always be consistent during the operation.
3、 Cutting speed, the cutting speed has a great influence on the power of the fiber laser cutting machine, and the cutting speed is proportional to the power of the fiber laser cutting machine. At the same time, the cutting quality is related to the quality of the laser beam, and also to the characteristics of the laser beam focusing system, that is, the size of the laser beam after focusing has a great impact on the laser cutting quality.
4、 The auxiliary gas, the auxiliary gas and the gas pressure also have an impact on the power of the fiber laser cutting machine. The auxiliary gas is compressed air or inert gas. If the thickness of the processed material increases or the cutting speed is slow, the gas pressure should be properly reduced. Cutting with a lower gas pressure can prevent the edge from frosting.
If the first four items have been excluded, finally check whether the laser power is decreased. Some parts of any equipment will be aged after long-term use. The laser is the core component of the fiber laser cutting machine, and the power will drop after long-term use. In addition to the above points, the performance, size and thickness of the processing material will also affect the power drop of the fiber laser cutting machine.