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Precision Ultra-precision Machining Technology Is The Basis For The Development Of Modern High-tech Industry
Jul 12, 2018

The country currently attaches great importance to the development of high-tech industries such as transportation, energy, information, biomedicine, etc. However, the core technologies of these industries are still not in the country at present, and key equipment or components still rely on imports. For example, high-performance bearings are the key to aircraft engines, high-speed rail, wind power and other products. However, due to current domestic materials and processes, their service life is far from satisfactory. Other components that are subject to high-frequency loads also face these problems. In recent years, the anti-fatigue manufacturing technology that has been studied in China is based on the fatigue strength and fatigue life of the workpiece. One of the core technologies is the precision ultra-precision machining process, which can improve the surface quality and improve the surface stress state. Improve the fatigue life of parts, which not only requires ultra-precision processing equipment and processes, but also needs to develop fatigue life testing equipment for materials and parts.


Although the new energy industry (such as solar energy) is developing rapidly in China, the core technology is still in foreign countries, such as wafer cutting, grinding, polishing, scoring equipment, high-concentration Fresnel lens mold ultra-precision processing equipment, etc. There is a big gap. The development of the information industry has promoted the development of chips, storage, etc. As the storage density becomes larger and larger, the requirements for the surface roughness of the disk and the corresponding suspension height of the reading and writing device and the up and down jump of the magnetic head are greatly improved. It is possible to control the relative gap of the magnetic head and the magnetic disk to be equal to about 1 nm. In the medical device industry, ultra-precision machining technology also plays a big role. The artificial joints are made of titanium alloy or other precious metal materials. The surface treatment of these high-precision parts has extremely high requirements on cleanliness, smoothness and surface roughness. Need ultra-precision research and polishing, the shape should be customized according to the individual's body structure, foreign prices are expensive, and there is a big gap in terms of service life and safety in China. Other micro-lens and devices such as micro-endoscopes, heart bypass and blood dilators, medical micro-injection arrays, etc. are not currently available in China.