Three common problems of laser cutting in the processing of carbon steel
Laser cutting machines are widely used in the field of carbon steel processing because of their excellent performances such as fast, efficient, high quality and high yield. However, due to the lack of understanding of laser cutting machines, many users may encounter various problems during use, which affects the normal operation and cutting quality of laser cutting machines. The following are three common problems and corresponding solutions for everyone.
1. When laser cutting carbon steel, burrs appear on the processed parts
1) The laser focus position shifts, do the focus position test and adjust according to the laser focus shift amount;
2) The output power of the laser is not enough, you need to check whether the laser generator is working properly. If it is normal, observe whether the output value of the laser control button is correct, and adjust it if it is incorrect;
3)The cutting line speed is too slow, you need to increase the line speed during operation control;
4) The purity of the cutting gas is not enough, and it is necessary to provide high-quality cutting working gas;
5) Instability that occurs when the machine tool is running for too long. At this time, it needs to be shut down and restarted.
The reason why the laser is not completely cut:
1) The choice of laser nozzle does not match the thickness of the processing board, replace the nozzle or processing board;
2) Laser cutting line speed is too fast, need to control the operation to reduce the line speed.
3) Abnormal sparks appear when cutting low carbon steel
When normally cutting low-carbon steel, the fire bouquet is long and flat, with few forks. The occurrence of abnormal sparks will affect the smoothness and processing quality of the cut section of the processed parts.
At this time, when the other parameters are normal, the following situations should be considered:
1)The laser head nozzle is seriously worn, and the nozzle should be replaced in time;
2) In the case of no new nozzle replacement, the pressure of the cutting working gas should be increased;
3) If the thread at the connection between the nozzle and the laser head is loose, the cutting should be suspended immediately, check the connection status of the laser head, and re-thread
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