The optical fiber laser cutting machine is a very common process in the laser processing of sheet metal. The cutting circle is not round, which involves the matching of parts later. They are all processed according to computer drawings. Why is the final cut hole not round? The possible factors are as follows.

1: Check the hardware of the optical fiber laser cutting machine: whether there is any problem with the beam, lens, nozzle, etc.

2: Check whether the servo motor of the optical fiber laser cutting machine or the cutting head is loose.

3: Check whether the light intensity of the optical fiber laser cutting machine is adjusted properly, resulting in no coincidence at the end of the final sheet metal laser processing. Generally, the difference between the maximum light intensity and the minimum light intensity should not exceed 5%, and the speed should not be adjusted too fast. If it is too fast, it may skip frames, and the results will not coincide.

4: The blowing pressure is not suitable. In the process of air blowing, when the air pressure is too low, there will be slag scraping and carbonization at the edge of the sheet metal laser processing, and the hole is easy to burst when the pressure is too high. Therefore, it requires that the sheet metal worker and the optical fiber laser cutting machine cooperate perfectly, and select the appropriate air pressure based on experience, so as to make the round hole cut fuller.

5: Check whether the servo motor parameters are incorrect. The round hole sometimes appears elliptical or irregular, which is related to the mismatch of XY axis movement. The direct cause of the mismatch of XY axis movement is the improper adjustment of servo motor parameters. Therefore, the quality of the round hole processed by the optical fiber laser cutting machine sheet metal laser also has certain requirements for the servo motor.

6: The precision error of guide rail and lead screw is caused. The precision error of the guide rail and lead screw of the optical fiber laser cutting machine will directly cause the round hole precision to fail to meet the expectation. This is related to the strength of optical fiber laser cutting machine manufacturers. In the actual process of sheet metal laser processing, the quality and effect of laser drilling will be poor, affecting the added value of products. Therefore, it is very necessary to select high-quality and big brand fiber laser cutting machine.

7: The round hole is too small. The best scheme for optical fiber laser cutting machine to cut round holes is 1:1, that is, the ratio of aperture to plate thickness is 1:1. Of course, this ratio, that is, the larger the aperture, the easier it is to cut high-quality round holes. Otherwise, when the energy of the fiber laser cutting machine is insufficient, it is easy to cut small holes with broken points and round holes that are not round.

The above is the solution that can be taken when the optical fiber laser cutting machine cuts the round hole out of round. If you want to know more about the laser cutting machine, you can pay attention to us. We will update the relevant information about the laser cutting machine from time to time.