China became the third country to master high-precision optical manufacturing and processing

How long is 1 nanometer? Equivalent to 1/80000 of a hair wire diameter. How long is sub-nano? Less than 1 nanometer! In mid-January, two kinds of ultra-precision polishing equipment, magnetorheological and ion beam, independently developed by the National Defense Precision Engineering Innovation Team, created sub-nanometer precision in the processing of optical parts, and passed acceptance by the national authorities. According to experts, this achievement has made China the third country after the United States and Germany to master high-precision optical component manufacturing and processing technologies, and has become the only country in the world that has both R&D capabilities for magnetorheological and ion beam polishing equipment.

Nano-precision is hailed as the "crown pearl" of ultra-precision machining technology. In the 1990s, most of our country adopted the traditional processing technology of “hand-made mechanical polishing”, and it was impossible to process large-caliber, high-precision, complex-shaped optical parts. Under the leadership of Prof. Lisheng Sheng under the leadership of Prof. Lisheng Sheng, the National Defense University Precision Engineering Innovation Team has worked hard for more than 20 years and has broken through the technical bottlenecks. It has independently developed magnetorheological and ion beam ultra-precision polishing equipment to create sub-nanometer precision in the field of optical component processing in China. .

In the past three years, the team has cooperated with the Chinese Academy of Sciences, China Aerospace Science and Technology Corporation and other units to promote the development of space optics and high-end equipment manufacturing in China. It has independently developed two types of seven types of magnetorheological and ion beam polishing machine tools. Significant economic and social benefits. The team has received the Outstanding Contribution Award and the Outstanding Achievement Award issued by the major scientific and technological projects of the Ministry of Science and Technology.