Why the power of fiber laser cutting machine is reduced

As long as it is a machine, there will be loss, and the metal laser cutting machine will also lose. In the process of long-term use, the cutting speed will slow down and the cutting accuracy will deteriorate. Many people think that the laser power of laser cutting equipment must be reduced, which is actually incorrect. There are many reasons that affect the power drop of the laser cutting machine, not necessarily the problem of the laser. The following analyzes the power drop of the fiber laser cutting machine.

Focus area

The focus position will affect the accuracy of laser cutting, especially the diameter of the focus point. The diameter of the focus point should be as small as possible to create a narrow gap: the diameter of the focus point is proportional to the focus depth of the focus point lens. The smaller the focus depth of the focus lens, the smaller the focus point diameter.

The distance between the nozzle and the work piece

The distance between the nozzle and the worktable will also affect the power reduction of the fiber laser cutting machine. Too far will cause unnecessary waste of kinetic energy, and too close will affect the dispersion ability of splash-cut products. The appropriate distance is 0.8mm. In addition, the fiber laser cutting machine mainly realizes the uneven cutting of the surface workpiece through subsequent adjustment, and the height of the nozzle and the working table should always be consistent during the operation.

Cutting speed

Cutting speed has a great influence on the power of fiber laser cutting equipment, and the cutting speed is directly proportional to the power of fiber laser cutting machine. At the same time, the cutting quality is related to the quality of the laser beam and the characteristics of the laser beam concentration system, that is, the size of the laser beam after concentration has a great influence on the quality of the laser beam.

Assistant gas

The size and pressure of the assistive gas also affect the power of the fiber laser cutting machine. The auxiliary gas is preferably compressed air or inert gas. If the thickness of the processed material increases or the cutting speed is slow, the air pressure should be appropriately reduced. Cutting with lower air pressure can prevent frosting.

Laser power

If the previous item is excluded, consider the laser power reduction. After any equipment is used for a long time, some parts will deteriorate. The laser is the core and most important part of the metal laser cutting machine, and the power will decrease after long-term 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.

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