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Causes of sawtooth in the laser cutting process

Causes of sawtooth in the laser cutting process

Metal laser cutting is often used in the sheet metal processing industry. It has the characteristics of good cutting effect and high cutting surface finish, which is very popular in the sheet metal processing industry. The popularization and promotion of metal laser cutting is inseparable from the technological progress of major laser equipment manufacturers. Good equipment manufacturing technology and brand accessories are the guarantee of the quality of laser cutting processing. In daily processing and production, various problems will appear, such as saw teeth appear in the processing process. Why is this happening?

1. Machine tool parallelism

If the parallelism of the laser cutting machine is not installed correctly, the equipment will be unstable during the laser cutting process, vibration will occur, and the cross section of the processed material will be sawtooth.

The metal laser cutting machine has two kinds of vibration. One is the vibration of the equipment itself during the laser cutting process, which will affect the cutting effect. The second is the problem of external equipment, such as exhaust fans, water tanks, etc. It is easy to make the device vibrate.

2. Gear related aspects

When the gear seat slips, it will also cause the machined part to produce jagged.

3. Rail installation is not parallel

Sometimes, the Y-direction guide rails are not installed in parallel, and the equipment will get stuck during the laser cutting process, so the cutting part may also have serrations.

4. Improper lens fixation

If the lens is not properly fixed, the lens will vibrate when the device is running, and the beam will also vibrate, causing the cut part to appear jagged. When the metal laser cutting machine is used for a long time, the slider will wear and there will be foreign objects in the inner ball, which will cause the guide rail to vibrate during the working process, and there will be jagged problems after laser cutting.

When we see a jagged problem on a metal laser cutting machine, we can hold the laser head with our hands to prevent it from shaking. If there is no sawtooth problem after pressing by hand, it is a slider problem. If this happens after the laser cutting process, you need to check the belts, gears and other accessories. If such problems occur in the new treatment process, you need to consider whether the installation is incorrect or the control drive does not match the motor.