With the continuous maturity of laser technology in China, three-dimensional cutting, automatic focusing, constant light path and other technologies are gradually applied to various fields, and the technology of thick plate laser cutting by moving the beam is also about to be perfected.

First, the connotation analysis of CNC laser cutting technology

The working principle of laser cutting is to use a mirror to control the laser beam to process the material to be cut. The mirror emits the beam emitted by the laser, and then focuses it by a special lens to form a beam of high energy density and then treats the surface of the material.

In the process of laser cutting, the auxiliary gas is sprayed into the laser focusing beam by the nozzle, and the coaxial gas can increase the cutting ability of the laser beam or protect the characteristics of the material to be cut.

The power of laser cutting is affected by the moving speed of the nozzle, and the cutting treatment on the cut material needs to be realized by referring to the movement trajectory of the machine tool platform.

CNC laser cutting is mainly used to cut metal, in addition to cutting this high-hardness material, different laser technology can also be cut cloth, glass, ceramics and other materials.

In the control of laser cutting quality system, technicians should reasonably adjust the position of different focusing lenses, and use multi-axis motion control card to control the motion trajectory of the filter and CCD beam. In CNC laser control activities, technicians should reasonably adjust the positioning speed of the laser beam movement (X/Y axis) according to the parameters that can withstand the size of the processed sheet in the CNC system. The maximum machining speed is determined according to the effective cutting length, and the positioning error of the cutting is controlled within a reasonable range in the direction processing of the laser beam. According to the development trend of CNC laser cutters, the cutting thickness of different materials is different.

Second, the development trend of CNC laser cutting technology

Laser cutting technology is widely used, it is a kind of precision technology in China's CNC machine tool production, it has a variety of different modes and attributes.

Different laser types work in different modes, and the difference in laser power and beam polarization determines that the laser has different mode stability in the cutting process.

The new laser processing technology mainly includes laser three-dimensional etching, laser microstructure fabrication, laser SPM composite machining and excimer mask etching. China's industrial processing and production fields pay more attention to CNC laser technology, technology research and development personnel should carefully analyze the characteristics and application status of CNC laser cutting technology, and optimize the application mode of CNC cutting technology. China's CNC laser cutting technology will develop in the direction of high speed and multiple degrees of freedom, due to the obvious growth trend of the domestic high-power CNC laser cutting machine market in recent years, the total demand for laser cutting machines in the field of industrial manufacturing continues to rise.

In order to meet the development of market demand, in the field of domestic CNC laser machine production and manufacturing, there will be high-speed and high-precision laser cutting machines, three-dimensional laser cutting machines, large-format thick plate laser cutting machines and other special laser cutting machines. The cutting ability of the laser cutting machine is gradually enhanced, and the adaptability and freedom of cutting technology will continue to increase. Transverse laser cutting machine uses gantry moving optical path processing technology to complete plasma cloud detection and other operations while cutting. The new 2.5D and 3D laser cutting machines with dual laser cutting systems can meet the requirements of high-speed cutting in industrial manufacturing and meet the needs of processing difficult parts. The use of fiber laser cutting machine equipment can also cut high-hardness materials, and the section after cutting is relatively neat, which is conducive to the later painting processing operation.