【正文】 by the general diffusion to the CVD, PVD, PCVD, ion peration , the direction of ion implantation, etc.。 used a prehardened plastic mold steel (such as the . P20), agehardening steel (such as the . P21, Japan NAK55, etc.), heat treatment hardened steel (such as the United States, D2, Japan, PD613, PD555, Sweden wins the White 136, etc.), powder die steel (such as Japan KAD18 and KAS440), etc.。 Fused Deposition Molding (FDM) and threedimensional printing forming technology (3DP) and so on. 16 (2) the surface forming tooling. It refers to the use of spray, chemical corrosion, electroforming and new method for the formation of the cavity surface and a fine pattern technology. (3) Casting forming tooling. There are bismuth tin alloy tooling, zinc alloy tooling, resin posite forming technology and silicon rubber mold molding technology. (4) cold extrusion mold technology and ultramolded shapes. (5) multipoint forming technology. (6) KEVRON steel blanking blanking tooling. (7) mold blank rapid manufacturing technology. Mainly dry sand Mold Casting, Vacuum Mold Casting, Resin Sand Mold Casting Lost Wax Casting, and other technologies. (8) Other aspects of technology. Such as the use of nitrogen gas spring pressure side, discharge, quick die technology, stamping unit technology, and cutting edge technology and solid surfacing edge inserts die casting technology. mold materials and surface treatment technology developed rapidly Industry to the level of mold, material application is the key. Due to improper selection and use of materials, causing premature die failure, which acco unts for more than 45% failure die. In the mold material, monly used cold work tool steel with CrWMn, Cr12, Cr12MoV and W6Mo5Cr4V2, flame hardened steel (such as Japan, AUX2, SX105V (7CrSiMnMoV), etc.。 laminated profile manufacturing (LOM)。s AQ325L, AQ550LLSWEDM have driven fast response, transmission and high positioning 15 accuracy, the advantages of small thermal deformation. Switzerland Chanmier pany NCEDM with PE3 adaptive control, PCE energy control and automatic programming expert systems. Others also used the powder mixed EDM machining technology, microfinishing pulse power and fuzzy control (FC) technologies. (3) highspeed milling machine (HSM) Milling is an important means of cavity mold. The lowtemperature highspeed milling with the workpiece, cutting force is small, smooth processing, processing quality, processing efficiency (for the general milling process 5 to 10 times) and can process hard materials (60HRC) and many other advantages. Thus in the mold processing more and more attention. Ruishikelang pany UCP710type fiveaxis machining center, machine tool positioning accuracy up to 8μm, homemade closedloop vector control spindle with a maximum speed 42020r/min. Italy RAMBAUDI39。s PIX30, PIX4 desktop scanner and the United Kingdom Taylor Hopson39。s Psmold and Hitachi Shipbuilding of SpaceE/mold are professional injection mold 3D design software, interactive 3D cavity, core design, mold base design configuration and typical structure . Australian pany Moldflow realistic threedimensional flow simulation software MoldflowAdvisers been widely praised by users and applications. China Huazhong University of Science have developed similar software and Zhengzhou University, Zmold software. For manufacturing, knowledgebased intelligent software function is a measure of die important sign of advanced and practical one. Such as injection molding experts Cimatron39。 Beijing Beihang Haier Software Ltd. CAXA Series software。s mold inconsistent with their value, resulting in mold industry own little economic benefit, social benefit big phenomenon. Dry as dry mold mold standard parts, standard parts dry as dry mold with pieces of production. Dry with parts manufactured products than with the mold of the class of anomalies exist. 12 4 Die trend mold CAD / CAE / CAM being integrated, threedimensional, intelligent and work direction (1) mold software features integrated Die software features of integrated software modules required relatively plete, while the function module using the same data model, in order to achieve Syndicated news management and sharing of information to support the mold design, manufacture, assembly, inspection, testing and production management of the entire process to achieve optimal benefits. Series such as the UK Delcam39。s mold industry, decentralized management system. There are 19 major industry sectors manufacture and use of mold, there is no unified management of the department. Only by China Die amp。 diefunded enterprises branch, the organizational model and professional mold factory is similar to small but the main。s mold industry is relatively backward and still could not be called an independent industry. Mold manufacturer in China currently can be divided into four categories: professional mold factory, professional production outside for mold。s mold standard parts production, the formation of the early 80s only smallscale production, standardization and standard mold parts using the coverage of about 20%, from the market can be assigned to, is just about 30 varieties, and limited to small and medium size. Standard punch, hot runner ponents and other supplies just the beginning, mold and parts production and supply channels for poor, poor accuracy and quality. Die amp。s mold industry and technical personnel, only 8% of employees 12%, and the technical personnel and skilled workers and lower the overall skill level. Before 1980, practitioners of technical personnel and skilled workers, the aging of knowledge, knowledge structure can not meet the current needs。 in the application process planning CAPP techn