How is the quality of laser cutting machine processing sheet metal processing manufacturers are judged?

At present, our country in the power of laser cutting and related machinery and equipment level of technology has long been very perfect, but the high precision laser cutting technology of independent research and development and application is still in its infancy, whether in laser cutting machinery and equipment or titanium sheet metal processing technology are dependent on foreign imports. Therefore, to deal with the technical monopoly of the western developed countries, grasp the high precision laser cutting technology and related machinery and equipment production and processing, will have an important significance to the development trend of national industry, to enhance the competitiveness of our country's science and technology.

Laser processing as a modern advanced technology in the 21st century, with a broad development prospects. But it is not perfect as a developing regenerative processing technology, it is not as traditional processing technology that has long established a sound set of basic theory and standardized steps.

For CNC sheet metal processing center, the review of its processing quality includes the following multiple criteria: 1, cutting smooth, no pattern, and no brittle break; 2, the total width of the cut, which is critically related to the laser light point aperture size; 3, the vertical angle of the cut is good, and the heat-affected zone is small; 4, there is no raw material ignition, and there is no molten layer produced, and there is no large slag; 5, the trauma surface is not smooth plating, and the appearance roughness The high or low is an important consideration of the laser cutting surface quality. In addition to the above criteria, the condition of the molten layer in the processing situation and Z final shape, directly related to the above processing quality evaluation index system.

The key to laser cutting appearance roughness lies in the following three aspects: ① original parameters of the cutting system software, such as light point way, lens focal length, etc.; ② adjustable processing parameters in the cutting situation, such as power size, cutting rate, assist vapor type and working pressure, etc.; ③ physical performance parameters of the processing raw materials, such as the digestibility of the laser, melting point, molten hydroxide viscosity index, hydroxide interface tension, etc. In addition, the thinness of the processed part also has a greater risk to the laser cutting surface quality. Relatively speaking, the thinner and thicker the alloy product workpiece is, the higher the roughness level of the cut surface. To achieve a good surface quality level, it is necessary to carry out several upgrading solutions for the production sheet metal processing process parameters such as laser power and cutting rate. Generally speaking, for raw materials with the same characteristics and thinness, there is a set of better cutting process parameters for processing process parameters. It will also get different surface quality of the wounds.