Cutting round holes on metal sheets and pipes is a common process, but some customers found that the round holes cut by fiber laser cutting machines are not round after purchasing metal fiber laser cutting machine. It is a problem with the equipment or process.

More and more metal processing companies are beginning to choose laser cutting of round holes. The processed section is smooth, and the diameter can be changed at any time, with high operational flexibility. However, the use of modern processing methods requires skilled operators. Improper operation can cause irregular circles. 1. It may be that your light intensity is not adjusted well, resulting in non-overlapping of the final result. 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. If it is too fast, frames may be skipped and the results will not overlap. 2. Then check your hardware: whether there are problems with the beam, lens, nozzle, etc. 3. Check the servo motor, or whether the cutting head is fixed loosely. 4. The blowing pressure is not appropriate. During the blowing process, when the air pressure is too low, scraping and carbonization will occur on the edge, while excessive air pressure will easily cause holes to burst. Therefore, this requires perfect cooperation between the process proofer and the machine, and the appropriate air pressure should be selected according to experience, so that the cut circular hole can be fuller. 5. The circular hole is too small. The best solution for metal laser cutting machine to cut circular holes is that the ratio of circular holes is 1:1, that is, the ratio of hole diameter to plate thickness is 1:1. Of course, this ratio, that is, the larger the hole diameter, the higher the quality of cutting circular holes and the easier it is. Otherwise, when the energy of the fiber laser cutting machine is insufficient, the cutting hole is prone to residual breakpoints and non-circular holes. 6. The parameters of the servo motor are incorrect. Oval or irregular phenomena sometimes appear in the circular hole, which is related to the mismatch of XY axis movement, and the direct cause of the mismatch of XY axis movement is the improper adjustment of servo motor parameters. Therefore, the quality of cutting circular holes also has certain requirements for servo motors. 7. Causes precision errors of guide rails and lead screws. If the parameter error of the servo motor affects the cutting quality, the precision error of the guide rails and lead screws will directly lead to the precision of the circular hole failing to meet the expected requirements. This is related to the strength of the laser cutting machine manufacturer. Usually, some small factories will deceive customers and say that the accuracy of laser cutting machines can reach 0.1mm, but in fact, in the actual operation process, the quality and effect of laser drilling will be very poor. Affecting the added value of the product. Therefore, it is very necessary to choose high-quality and large-brand laser cutting machines. All these parameters are used to identify whether the parameters such as the accuracy and speed of cutting circular holes meet the standard requirements, and are sufficient to identify whether the quality of the purchased laser cutting machine is qualified. Therefore, customers must keep their eyes open in the process of purchasing laser cutting machines.

Four factors affecting the cutting accuracy of fiber laser cutting machines. 1. The laser condensation size of the laser generator: If the smaller the spot after gathering, the higher the cutting accuracy, if the gap after cutting is also smaller. It shows that the fiber laser cutting machine has the characteristics of high precision and good quality. However, the beam emitted by the laser is conical, so the slit cut is also conical. Under this condition, the greater the thickness of the workpiece, the lower the accuracy, so the larger the slit. Fiber laser cutting machine. 2. The accuracy of the worktable: If the worktable accuracy of the fiber laser cutting machine is very high, the cutting accuracy will also increase accordingly. Therefore, the accuracy of the workbench is also an important factor in measuring the accuracy of the laser generator. 3. The laser beam converges into a cone: When the fiber laser cutting machine cuts, the laser beam is tapered downward. The thicker the workpiece is, the lower the cutting accuracy will be and the larger the cutting gap will be. 4. The different cutting materials will also affect the accuracy of the fiber laser cutting machine. Under the same conditions, the cutting accuracy of the fiber laser cutting machine for stainless steel and aluminum will be different. The cutting accuracy of stainless steel will be higher and the cutting surface will be smoother.