With the progress of science and technology, the era of revival of sheet metal processing industry in processing centers has quietly arrived. High-precision parts processing has been extended to many areas of the national economy, and the scope of application has also been greatly increased.

precision machining refers to submicron (standard deviation 0.3~0.03 μm, surface roughness Ra0.03 ~ 0.005μm) and nanometer (precision error 0.03 μm, surface roughness less than Ra0.005μm) precision machining. The process methods and technical measures employed to conclude these machining operations are collectively referred to as finishing technology. Coupled with measurement technology, environmental assurance and data issues, people call this technology a general engineering.

the opening of high-precision parts processing technology directly affects the opening of a country's high-end technology and national defense industry. therefore, countries all over the world attach great importance to box body sheet metal processing, invest great efforts in research and development, and jointly implement technology confidentiality, control the export of key processing technology and equipment.

China's high-precision parts processing and manufacturing industry has entered a high-speed opening stage. China's private enterprises have sufficient economic strength to make enterprises move towards modernization, the introduction of advanced equipment and the influx of many professional talents make the manufacturing level of many coastal areas move forward. Although the development prospect of high-precision special-shaped sheet metal processing industry is good, its technical threshold is high, and risks and opportunities coexist.