【正文】 Die CAD / CAM technology trends 21 basic features of the mold manufacturing industry is highly integrated, intelligent, flexible and work, and the goal is to improve product quality and production efficiency, shorten the design cycle and manufacturing cycle is short, lower production costs and maximize die the resilience of the manufacturing industry to meet customer needs. Concrete manifestation of the following: 1) standardized CAD / CAM systems can create standard parts database, a database of nonstandard parts and mold parameters database. Standard library in the CAD design of the parts can be called at any time, using GT (group technology) production. Stored in nonstandard parts library, although the structure and design of different needs, but the use of modeling system itself can easily be modified to speed up the design process, the typical mold structure library is based on the design parameters to achieve, according to user requirements to revise the structure of similar mold, can produce the required structure. 2) The integrated technology of modern mold design system should not only emphasize the integration of information, but should be emphasized that technology, and management integration. In the development of mold manufacturing system is stressed that more integrated concept, that is, information integration, intelligent integration, serial and parallel working mechanism of integration and to integrate it more suitable for future manufacturing systems. 3) The application of artificial intelligence technology to achieve intelligent technology product life cycle (including product design, manufacture, use) of all aspects of intelligence, to achieve the production process (including organization, management, planning, scheduling, control, etc.) all aspects of intelligence, and mold equipment, intelligent, but also between man and system integration and intelligence in which the full play. 4) The application of work technology, work technology, hardware and software integration, including implementation of various munication protocols and manufacturing automation protocol, the information munication interface, system operation control strategy is to achieve the basis for a variety of automated manufacturing systems. 5) MultiScience multifunctional integrated product design and technology used in future product development is not only a scientific theory and knowledge of machinery, but also use electromagism, optics, control theory and science and other knowledge. Product development to fullperformance multiobjective optimization design, a pursuit of static and dynamic characteristics of the mold product, efficiency, precision, service life, reliability, manufacturing costs and manufacturing cycle, the best bination. 6) The application of reverse engineering technology in many cases, some products are not from the design concept, but the origin and some other products or in kind, to or in kind, only the prototype model, but not under the conditions of product design mold design and manufacturing in order to produce a finished product. At this point needs to physical measurement, physical measurement data and then use the CAD geometry model to restructure, this process is the reverse engineering. Reverse engineering to shorten the cycle from design to manufacturing is to help designers achieve concurrent engineering and other modern design concept is a powerful tool, on being present in the more widely used. 7) rapid prototyping rapid prototyping manufacturing technology is based on layer manufacturing principle, to create a prototype quickly, and with the geometric plexity of nothing to do, especially with plex surface shape in the manufacture of products can show their superiority. It not only can quickly create prototypes for design review, assembly verification, but also can copy the shape of the mold and quickly create a product, thus avoiding the cost of the traditional mold manufacturing, the high cost of NC machining, which in mold manufacturing RPM play an increasingly important role. 4. Pilot program 1. Analysis of mobile phone parts and plastic parts plastic molding technology and processes. 2. Design mobile phone plastic parts diagram. 3. Using the principle of injection molding for molding plastic parts of mobile phones. 4. And injection mold design and drawing and assembly drawing die cavity