- With the rapid development of laser rapid prototyping (RPM), China has reached the international level and gradually realized commercialization. The commercial rapid prototyping processes in the world mainly include SLA (stereolithography), LOM (layered and separated manufacturing), SLS (selective laser sintering) and 3d-p (three-dimensional printing).
Tsinghua University first introduced sla250 (stereolithography or photosensitive resin laser curing) equipment and technology from 3D company of the United States and carried out research and development. After several years of efforts, it improved and launched the “m-rpms type multi-functional rapid prototyping manufacturing system” (with layered solid manufacturing SSM and melt extrusion molding MEM), which is the only world with independent intellectual property rights in China The system of rapid prototyping process (national patent) has good performance price ratio.
- Die less multi-point forming technology is another advanced manufacturing technology that uses the height adjustable punch group to replace the traditional die for sheet metal surface forming. The die less multi-point forming system takes CAD / CAM / CAT technology as the main means to realize the automatic forming of three-dimensional surface rapidly and economically. Jilin University of technology has undertaken the national key scientific and technological research projects related to dieless forming, and has independently designed and manufactured die-free multi-point forming equipment with international leading level.
Compared with MIT, Tokyo University and Tokyo University of technology in the United States, China’s technology is in a leading position in theoretical research and practical application, and is now developing in terms of popularization and application.
- The resin stamping die has been successfully applied in the trial production of domestic car for the first time. The main features of the former and the second models of the former and the second type of the former and later parts of the car were manufactured by the former and the latter, respectively The gap between punch and die is accurately controlled by imported special wax. The dimension precision of the die is high. The manufacturing cycle can be shortened by half to two thirds, and the manufacturing cost can be saved about 10 million yuan (12 sets of dies). It opens up a new way for trial production and small batch production of cars in China. The experts of Ciba fine chemicals in Switzerland believe that it can reach the international level in the 1990s.
- On site inspection technology of mould
With the development of precision mould, the requirement of measurement is higher and higher. For a long time, the precise CMM is limited by the environment and seldom used in the production site. The new generation CMM has the characteristics of temperature compensation, anti vibration material, improving dust-proof measures, improving environmental adaptability and reliability, so that it can be easily installed in the workshop and used in order to realize the field measurement.
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