【正文】 s, the proportion exceeded 60%. Such as aircraft manufacturing, the use of a certain type of fighter dies more than 30,000 units, of which the host 8000 sets, 2020 sets of engines, auxiliary 20 000 sets. From the output of view, since the 8039。s, mechanical and electronic technologies in close connection with the development of NC machine tools, such as CNC wire cutting machine, CNC EDM, CNC milling, CNC coordinate grinding machine and so on. The use of puter automatic programming, control CNC machine tools to improve the efficiency in the use and scope. In recent years, has developed a puter to timesharing by the way a group of direct management and control of CNC machine tools NNC system. With the development of puter technology, puters have gradually into the mold in all areas, including design, manufacturing and management. International Association for the Study of production forecasts to 2020, as a means of links between design and manufacturing drawings will lose its primary role. Automatic Design of die most fundamental point is to establish the mold standard and design standards. To get xxx大學(xué)畢業(yè)設(shè)計（論文） 6 rid of the people of the past, and practical experience to judge the position of the design center, we must take past experiences and ways of thinking, for series, numerical value, the number of typebased, as the design criteria to the puter store. Components are dry because of mold constitutes a million other differences, to e up with a can adapt to various parts of the design software almost impossible. But some products do not change the shape of parts, mold structure has certain rules, can be summed up for the automatic design of software. If a Japanese pany39。s national economy in the weak links and bottlenecks constraining sustainable economic development. xxx大學(xué)畢業(yè)設(shè)計（論文） 8 Research on the Structure of industrial products mold In accordance with the division of China Mould Industry Association, China mold is divided into 10 basic categories, which, stamping die and plastic molding two categories accounted for the main part. Calculated by output, present, China accounts for about 50% die stamping, plastic molding die about 20%, Wire Drawing Die (Tool) about 10% of the world39。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。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。s PIX30, PIX4 desktop scanner and the United Kingdom Taylor Hopson39。 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.。s AQ325L, AQ550LLSWEDM have driven fast response, transmission and high positioning xxx大學(xué)畢業(yè)設(shè)計（論文） 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 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. 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 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 plastic molding mold design, production technology started relatively late, the overall level of low. Currently a single cavity, a simple mold cavity 70%, and still dominant. A sophisticated multicavity mold plastic injection mold, plastic injection mold has been able to multicolor preliminary design and manufacturing. Mould is about 80 million times the average life span is about, the main difference is the large deformation of mold ponents, excess