Precision mass production equipment has been put into use in a certain enterprise

The traditional mechanical processing methods (ordinary processing) are the same as the precision and ultra-precision processing methods. With the adoption of new technologies, new processes, new equipment, as well as new testing techniques and instruments, the processing accuracy is constantly improving.
The continuous improvement of processing accuracy reflects the development trend that the material division level during the processing of workpieces is constantly moving from the macroscopic to the microscopic world. As time goes by, the processing accuracy that was originally considered difficult to achieve will become relatively easy. So, are ordinary processing, precision processing and ultra-precision processing just relative concepts? The boundary between them keeps changing over time. The typical representative of precision cutting and ultra-precision machining is diamond cutting.
Take diamond cutting as an example. The arc radius of its blade edge has been constantly developing towards a smaller direction. Because its size directly affects the roughness of the processed surface and is directly related to the reflectivity of optical mirrors, the requirements for the reflectivity of instruments and equipment are getting higher and higher. For instance, the reflectivity of laser gyro mirrors has been proposed to reach 99.99%, which inevitably requires diamond tools to be sharper. To conduct the extremely thin cutting test, the objective is to achieve a chip thickness of nm, and the arc radius of the cutting tool edge should approach 2.4nm. To reach this height, the diamond grinding machine was prompted to change its traditional structure. Among them, the main shaft bearing adopts air bearing as the support, and the end face runout of the grinding disc can be self-corrected on the machine tool, keeping the end face runout below 0.5μm.
In terms of cutting tools, diamond grinding wheels are used, and the depth of cut and feed rate are controlled. On ultra-precision grinding machines, ductile grinding, that is, nano-grinding, can be carried out. Even the surface of glass can obtain an optical mirror surface. From a long-term perspective, manufacturing technology is the main direction and strategic decision for the development of the national economy in countries around the world at present. It is one of the important means for a country's economic development, and at the same time, it is a long-term plan for a country to achieve independence, prosperity, sustained and stable economic development, and maintain a leading position in science and technology. The development trends of precision machining and ultra-precision machining. The development of science and technology has also put forward higher requirements for precision processing and ultra-precision processing technologies. From the lenses of astronomical telescopes to the micro-nano size parts of micro-engineering and micro-mechanics that require a line width of μm for large-scale integrated circuits, regardless of their volume, their highest dimensional accuracy approaches the nanometer level. The shapes of parts are becoming increasingly complex, and various aspheric surfaces have become very typical geometric shapes at present. Does micro-mechanical technology bring about a brand-new trend for ultra-precision manufacturing technology? Its fineness poses a new challenge to traditional manufacturing techniques, promoting the improvement of technical performance of various products. The development process shows a spiral circular development, directly contributing to the progress of science and technology and human civilization. The pursuit of high quality, miniaturization, high reliability and high performance of products has enabled the rapid development of ultra-precision processing technology, which has now become an important part of modern manufacturing industry