Among the traditional processing methods, the punch press is warmly sought after, but with the emergence of fiber laser cutting machine, the punch press is increasingly rejected. The way of punching machine is not only low in accuracy, but also has many burrs, and requires subsequent polishing process. These shortcomings create opportunities for fiber laser cutting machine.
What are the advantages of laser cutting machine? More and more enterprises begin to use laser to cut round holes because of the flexibility and effectiveness of laser processing. The speed of 130 meters per minute of laser clearance can meet the needs of many sheet metal processing plants for high speed. In addition, the section of the round hole processed by laser is smooth, and the diameter of the round hole can also be modified to meet the diversified needs of the plant.
However, using laser cutting machine to process round holes is not simple, but requires some skills. Now let the technician of Xinquanli Laser analyze the reasons and precautions for cutting round holes.
1. The blowing pressure is not suitable
During the blowing process, when the pressure is too low, the edge scraping and carbonization will occur, and the hole is easy to burst when the pressure is too high. Therefore, this requires the process proofing engineer to cooperate with the machine and select the appropriate air pressure based on experience, so as to make the cut round hole fuller.
2. The round hole is too small
The scheme of laser cutting machine to cut round holes is that the ratio of round 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 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 residual breakpoints and round holes.
3. Servo motor parameter error
Sometimes the round hole may appear elliptical or irregular, which is related to the X Y axis motion mismatch, and the direct cause of the X Y axis motion mismatch is the improper adjustment of servo motor parameters. Therefore, the quality of cutting round holes also has certain requirements for servo motors.
4. Caused by precision error of guide rail and lead screw
If the parameter error of servo motor affects the cutting quality, the accuracy error of guide rail and lead screw will also directly lead to the round hole accuracy not meeting the expectation. This is related to the strength of the laser cutting machine manufacturer. Generally, some small factories will cheat customers that the accuracy of the laser cutting machine can reach 0.1mm, but in fact, in the actual operation process, the quality and effect of laser drilling will be poor, affecting the added value of products. Therefore, it is important to select a guaranteed laser cutting machine manufacturer.
All these parameters are used to identify whether the accuracy, speed and other parameters of cutting round holes meet the standard requirements, and are sufficient to identify whether the purchased laser cutting machine is qualified. Therefore, customers should keep their eyes open when purchasing laser cutting machines.
