2. Status quo of China's RP&M development
China's research on this new technology started from the "Eighth Five-Year Plan" period and made breakthrough progress during the "Ninth Five-Year Plan" period. In the first year of the "Ninth Five-Year Plan", the government listed the technology in the "Ninth Five-Year Plan" project. The National Natural Science Foundation also listed the RP as a key project for advanced manufacturing technology. At the same time, in the "Ninth Five-Year Plan" national scientific and technological research, Advanced manufacturing technology is listed as one of the key areas of funding, and several important aspects of advanced manufacturing technologies, such as precision forming, CAD promotion, parallel design and concurrent engineering, agile manufacturing, virtual manufacturing, etc. are all related to RP. Even the main support is RP. This marks the beginning of a new level of domestic RP&M technology research.
China has developed four RP&M processes, equipment and supporting materials such as SLA, LOM, FDM and SLS, and its scientific and technological achievements have been commercialized. In 2002, the number of rapid prototyping equipment in China was nearly 1,000 sets, ranking second in the world after the United States and Japan, 60% of which were made by China. China has independently developed several rapid prototyping manufacturing technologies such as moldless sand manufacturing (PLC), low temperature ice type (LIR P) process and ultraviolet light rapid prototyping machine without laser, which has attracted great attention from domestic and foreign counterparts.
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