When using laser cutting machine to cut metal, various problems may occur, which seriously affect the work efficiency. So how should we solve these problems? This article will summarize some problems and solutions of metal laser cutting machine in use.
Solution to Burr in Cutting Low Carbon Steel with Metal Laser Cutting Machine
According to the working and design principles of laser cutting, the following reasons are the main causes of workpiece burrs:
If the focus is not in the correct position, focus position test shall be carried out to correct the deviation
The output power of the laser is insufficient. It is necessary to check whether the laser generator works normally. If it is normal, please check whether the output value of the laser control button is correct, and then adjust it accordingly.
The cutting line speed is too slow, so the line speed needs to be increased during operation;
The purity of cutting gas is not enough, and high-quality cutting working gas must be provided.
Long time operation of the laser cutting machine will cause instability, and the machine should be shut down and restarted.
Solution to Incomplete Cutting of Metal Plate
The main reasons for incomplete metal plate cutting are:
The nozzle of the laser head does not match the thickness of the processing plate, please replace the nozzle.
The linear speed of laser cutting is too fast, reducing the linear speed;
If the error of focusing position is too large, it is necessary to re detect the nozzle sensing data, which is easy to occur when cutting aluminum.
Common problems and solutions of laser cutting machine
Solution to Abnormal Spark in Laser Cutting Low Carbon Steel
This will affect the quality of the cut. In this case, if there is no problem with other parameters, the following situations should be considered:
The laser head nozzle is worn, please replace it in time. In case of shortage of new nozzles, increase the air pressure of laser cutting.
The thread at the joint between the nozzle and the laser head is loose. In this case, stop cutting quickly, check the connection status and tighten the thread.
Hole Deformation in Metal Laser Cutting
This is because when using high-power laser cutting machine to process small holes, pulse piercing will be used, which will cause laser energy to concentrate on small areas, resulting in burning of unprocessed areas and hole deformation.
In this case, change the pulse drilling (soft pricking) method to sand blasting drilling (normal drilling) in the processing program.
For small power laser cutting machine, pulse piercing shall be adopted in small hole processing to obtain good surface finish.
I hope these solutions can help you solve the problems that occur in the use of metal laser cutting machines.
