There are some more or less losses in the long-term use of fiber laser cutting machine, 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 reduction of laser cutting machine, not necessarily the problem of laser. Xinquanli Laser helps you to analyze the reasons for the power reduction of the fiber laser cutting machine:

1. The focus position affects the cutting accuracy, especially the focus spot diameter. 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 focus lens. The smaller the focal depth of the focus lens, the smaller the focal spot diameter.

2. The distance between the nozzle and the distance between the workpiece and the nozzle also affect the power reduction of the fiber laser cutting machine. Too far away will cause unnecessary waste of kinetic energy, and too close away will affect the dispersion ability of sputter cutting products. The appropriate distance is 0.8mm. In addition, the optical fiber laser cutting machine can cut the workpiece with uneven surface mainly by its follow-up adjustment, and the height of nozzle and workpiece should always be consistent during operation.

3. Cutting speed, cutting speed has a great impact 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 laser beam quality, 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 size of auxiliary gas, auxiliary gas and gas pressure also affect the power of the fiber laser cutting machine. It is recommended to use compressed air or inert gas as auxiliary gas. If the thickness of the processed material increases or the cutting speed is slow, the gas pressure should be properly reduced. Cutting with lower gas pressure can prevent the edge from frosting.

If the first four items have been ruled out, the laser power reduction is considered. Some parts of any equipment will age after being used for a long time. The laser is the core component of the fiber laser cutting machine, and the power will also drop after a long time of use. In addition to the above points, the performance, size and thickness of the processed materials will also affect the power reduction of the fiber laser cutting machine.