Generally, the normal life of laser cutting machines is around 5 years, so the power will definitely decrease after long-term use. Now, let’s summarize the reasons for the power decrease of laser cutting machines:
1. The focus position will affect the cutting accuracy, especially the focus diameter. The focal diameter should be as small as possible to form a narrow slit, and the focal diameter is proportional to the focal depth of the focus lens. The smaller the focal depth, the smaller the focal diameter.
The distance between nozzles and the distance between workpiece and nozzle can also affect the power of the fiber laser cutting machine. Too long a distance can lead to unnecessary waste of kinetic energy, while too close a distance can affect the diffusion ability of the spatter cutting product. The appropriate distance is 0.8 mm. In addition, the optical fiber laser cutting machine can mainly cut workpiece with uneven surface through the following adjustments, and the height of the nozzle and workpiece should always be the same during operation.
3. Cutting speed has a significant 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 quality of cutting is related to the quality of the laser beam, as well as to the characteristics of the laser beam focusing system. That is, the size of the focused laser beam has a significant impact on the laser quality.
Auxiliary gas, auxiliary gas, and gas pressure can also affect the power of the fiber laser cutting machine. It is recommended to use compressed air or nitrogen as an auxiliary gas. If the thickness of the material increases or the cutting speed is slow, the air pressure should be lowered appropriately. Use low pressure cutting to prevent edge cutting from frosting.
If the first four items are excluded, it is necessary to consider reducing the laser power. Long term use of any equipment can cause partial aging. Laser is the core component of fiber laser cutting machines. In addition to the above, the performance, size, and thickness of the processed material can also affect the power of the fiber laser cutting machine.