Correction method of cutting path deviation of laser cutting machine ‌

As an important equipment in modern industrial manufacturing, laser cutting machine plays an irreplaceable role in metal processing, automobile manufacturing, aerospace and other fields with its high-precision and high-efficiency cutting ability. However, in practical applications, laser cutting machines sometimes have problems with cutting path deviation, which not only affects the cutting quality, but also may reduce production efficiency. This article will start from the causes of cutting path deviation of laser cutting machines, explore effective correction methods, and provide strong support for the stable operation of laser cutting machines.

1. Analysis of causes of cutting path deviation ‌Optical path system deviation ‌The optical path system is one of the core components of the laser cutting machine, which is composed of components such as laser tube, reflector, and focusing mirror. When any component in the optical path system is offset or contaminated, the transmission path of the laser beam will change, causing the cutting path deviation.

‌Cutting material factors ‌

The thickness, surface flatness and material properties of the cutting material will affect the cutting effect of the laser cutting machine. For example, when there is an oxide layer or impurities on the surface of the material, it will absorb part of the laser energy, causing the cutting path to deviate. At the same time, excessive thickness of the cutting material will also increase the difficulty of cutting and cause deviations in the cutting path.

‌Equipment hardware problems‌

Hardware problems of the laser cutting machine, such as uneven installation of the cutting head, substandard laser output power, and incorrect configuration of the focusing system, may lead to deviations in the cutting path. In addition, after long-term use of the equipment, problems such as aging of the laser tube and contamination of the lens may also affect the cutting accuracy.

‌Programming and operation errors‌

During the programming process, if there is an error between the processing trajectory fitting curve and the actual curve, or if the operator fails to accurately adjust the equipment parameters in actual operation, it may lead to deviations in the cutting path.

2. Correction method for cutting path deviations

‌Adjust the optical path system‌

For the deviation of the cutting path caused by the offset of the optical path system, the laser tube, reflector, focusing mirror and other components should be cleaned and inspected first. Ensure that the surface of each component is free of pollution and damage. Then, use professional optical path adjustment tools to fine-tune the optical path system so that the laser beam can be accurately transmitted to the cutting point.

‌Optimize cutting materials‌

When selecting cutting materials, ensure that their thickness, surface flatness and material properties meet the cutting requirements of the laser cutting machine. For materials with oxide layers or impurities on the surface, appropriate surface treatment should be performed. At the same time, during the cutting process, the laser output power and cutting speed should be adjusted according to the characteristics of the material to ensure the cutting quality.

‌Check and maintain equipment hardware‌

Regularly check and maintain the hardware of the laser cutting machine, including the cutting head, laser tube, lens, focusing system, etc. Ensure that each component is installed correctly, without looseness, and has good performance. For aging or damaged components, they should be replaced in time to ensure the stable operation of the equipment.

‌Calibrate equipment parameters‌

During programming and actual operation, the various parameters of the laser cutting machine, such as laser output power, cutting speed, focal length, etc., should be accurately adjusted. At the same time, use professional calibration tools to calibrate the equipment to ensure the accuracy of the cutting path.

‌Optimize cutting path planning‌

By optimizing cutting path planning, the error accumulation in the cutting process can be reduced and the cutting accuracy can be improved. In actual operation, the appropriate cutting path and cutting sequence should be selected according to the characteristics of the material and the cutting requirements.

III. Conclusion

The cutting path deviation of laser cutting machine is a complex problem, involving multiple aspects such as optical path system, cutting materials, equipment hardware, programming and operation. To effectively solve this problem, it is necessary to take comprehensive correction measures from multiple angles. By adjusting the optical path system, optimizing cutting materials, checking and maintaining equipment hardware, calibrating equipment parameters, and optimizing cutting path planning, the cutting accuracy and stability of laser cutting machines can be significantly improved, contributing to the high-quality development of the industrial manufacturing field.

In addition, for operators of laser cutting machines, they should continue to learn and master new technologies and knowledge, and improve their professional quality and operating skills. Through continuous practice and exploration, we will continue to summarize and improve the correction methods of cutting path deviation, providing strong guarantees for the stable operation of laser cutting machines and the improvement of cutting quality.