Fiber laser cutting machine drilling is a very common technology in sheet metal laser processing. Circular cutting is not circular, which involves part matching. Many manufacturers said that I processed according to computer drawings. Why is the hole finally cut not round? Possible factors are as follows.

1. Check the hardware of optical fiber laser cutting machine: 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 has been correctly adjusted so that the end does not overlap in the final sheet metal laser processing. In general, the difference between the maximum light intensity and the minimum light intensity should not exceed 5%, and the speed adjustment should not be too fast. If the speed is too fast, the frame may jump and the results will be inconsistent.

4. The blowing pressure is inappropriate. In the process of blow molding, when the air pressure is too small, scratching and carbonization will occur in the laser processing of sheet metal. If the pressure is too high, the hole will burst easily. Therefore, it is required that the sheet metal master plate and the optical fiber laser cutting machine should be perfectly matched, and appropriate air pressure should be selected according to experience to make the round hole fuller.

Why is the round cutting hole of the laser cutting machine not round?

5. Check whether servo motor parameters are wrong. Sometimes the ellipse or irregularity of the round hole occurs, 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 servo motor has certain requirements on the laser quality of round holes processed on the sheet metal laser cutting machine.

6. Accuracy error of guide rail and lead screw. The accuracy error of the guide rail and lead screw of the optical fiber laser cutting machine will directly lead to the failure of the round hole accuracy to meet the expectations. This relates to the strength of fiber laser cutting machine manufacturers. Generally, some small factories will cheat customers that the accuracy of optical fiber laser cutting machine can reach 0.1mm, but in fact, in the actual process of sheet metal laser processing, the quality and effect of laser drilling are not good, which affects the added value of the laser cutting machine. Therefore, it is very necessary to choose high-quality, big brand optical fiber laser cutting machine.

7. The round hole is too small. The best scheme for fiber laser cutter to cut round holes is 1:1, that is, the ratio of aperture to plate thickness is 1:1. Of course, this ratio means that 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, the cutting hole is easy to leave a breakpoint, and the round hole is not round.

The above is the solution that can be taken to solve the problem that the optical fiber laser cutting machine is not cutting round holes. Optical fiber laser cutting machine has been widely used in sheet metal laser processing manufacturers. The traditional stamping process depends on the external force directly acting on the workpiece surface, which is easy to cause low accuracy and many burrs. As long as the optical fiber laser cutting machine can be operated, the round hole can be cut well. In addition, the fiber laser cutter can also cut any pattern without opening the mold.