Laser cutting machine has been widely used in the field of carbon steel processing because of its excellent performance, such as fast, efficient, high-quality, high income, etc. However, due to the lack of understanding of the laser cutting machine, many users may encounter various problems in the use process, which will affect the normal operation of the laser cutting machine and the cutting quality. The following three common problems and corresponding solutions are analyzed.

1. When laser cutting carbon steel, burrs appear on machined parts

Burrs on machined parts are generally caused by:

(1) If the laser focus position deviates, the focus position shall be tested and adjusted according to the deviation of the laser focus;

(2) The output power of the laser is not enough. Check whether the laser generator works normally. If it works normally, observe whether the output value of the laser control button is correct. If not, adjust it;

(3) The cutting line speed is too slow, so it is necessary to increase the line speed during operation control;

(4) The cutting gas purity is not enough, and high-quality cutting working gas is required;

(5) If the machine tool runs for too long and becomes unstable, it needs to be shut down and restarted.

2. The laser is not completely cut

Reasons for incomplete laser cutting:

(1) If the selection of laser nozzle does not match the thickness of the processing plate, replace the nozzle or processing plate;

(2) The linear speed of laser cutting is too fast, and the linear speed needs to be reduced by operation control.

3. Abnormal spark occurs when cutting low carbon steel

When cutting low carbon steel normally, the spark beam is long, flat and less split. The appearance of abnormal sparks will affect the smoothness of the cutting section of the workpiece and the machining quality.

Under the condition that other parameters are normal, the following conditions should be considered:

(1) The nozzle of the laser head is seriously damaged, and the nozzle should be replaced in time;

(2) In case of no new nozzle replacement, the cutting working gas pressure shall be increased;

(3) If the thread at the connection between the nozzle and the laser head is loose, immediately stop cutting, check the connection status of the laser head, and re install the thread.

Laser cutting machine is a valuable high-tech equipment. Once problems occur in operation, it will not only consume effort, but also increase costs. Therefore, it is best to choose equipment with good quality when purchasing.