Ultra-precision machining is a very fine machining technique that involves the fine machining of material surfaces. Extreme accuracy, as in the case of ultra-thin gears with a finish of Ra50nm and mould microchannels with dimensions as small as 10μm.

The main feature of ultra-precision machining is the ability to obtain requirements such as high surface finish, high dimensional accuracy and extremely high accuracy of form and position tolerances. Its processing methods are diverse, including grinding, scraping, lapping, and fine engraving, all of which involve the use of ultra-precision machining technology to achieve the best results.

The equipment and technology used in ultra-precision machining are also very high-precision, including ultra-fine machine tools and ultra-high-precision measuring instruments. The application of these equipments and technologies has led to a wide range of applications of ultra-precision machining in the fields of medicine, optics, semiconductors, precision engineering, and so on.

Ultra-precision machining has a wide range of applications, including aerospace, military, precision instrument manufacturing and other fields. For example, in the aerospace field, ultra-precision machining can be used to manufacture high-precision aero-engine blades, aircraft parts and components. In the military field, ultra-precision machining can be used to manufacture high-precision missiles, radar and so on. In the field of precision instrument manufacturing, ultra-precision machining can be used to manufacture high-precision measuring instruments, optical instruments and so on.