Factors affecting the cutting accuracy of laser cutting machines

The size of the laser coalescence of the laser generator: after gathering if the spot is small, the cutting accuracy is high, if the gap after cutting is also small. It means that the laser cutting machine has high precision and good quality. This condition, the greater the thickness of the workpiece, the lower the accuracy will be, so the larger the slit.

The accuracy of the table: fiber laser cutting machine table accuracy if very high, so that the accuracy of cutting also increased. Therefore, the accuracy of the table is also an important factor in measuring the accuracy of the laser generator.

Laser beam cohesion into a cone: fiber laser cutting machine cutting, the laser beam is to cone down, this time if the thickness of the cutting workpiece is larger, the accuracy of the cut will be reduced, then cut out the gap will be larger.

Cutting materials are different: the same situation, fiber laser cutting machine cutting stainless steel and cutting aluminum its accuracy will be different, stainless steel cutting accuracy will be higher, and the cut surface will be smooth some.

For example, brass laser cutting machinein the specific operation process of cutting round holes, the shape is not round enough, you can analyze the following aspects of the possible problems.

1. may be that the light intensity is not well adjusted, resulting in the final ending does not overlap, generally speaking, 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, too fast, then you may also jump the frame, the results do not overlap.

2. Then look at the hardware: beam, lenses, nozzles, etc. for problems.

3. Check if the servo motor, or the cutting head is fixed loosely.

4. Blowing air pressure is not suitable
Blowing process, when the air pressure is too small will appear edge scraping slag, charring phenomenon, the pressure is too large and easy to burst holes. So this requires the process of proofing and machine perfect cooperation, with experience to choose the right air pressure, so that the cut round hole more full.

5. Round hole is too small
Laser cutting machine cutting round hole the best solution is round hole ratio 1:1, that is to say, the ratio of hole diameter and plate thickness is 1:1, of course, this ratio, that is to say, the larger the hole diameter, cutting out high quality round holes more easily. Otherwise, when the fiber laser cutting machine energy is not enough, cutting small holes are easy to point out the residue of broken points and round holes are not round.

6. Servo motor parameters are wrong
Round hole will sometimes appear oval or irregular phenomenon which is related to the XY axis movement mismatch, and the direct cause of XY axis movement mismatch is the servo motor parameters are not adjusted appropriately.