Injection mould is an important process equipment for the production of various industrial products. With the rapid development of plastic industry and the popularization and application of plastic products in aviation, aerospace, electronics, machinery, ship and automobile industries, the requirements of products for moulds are getting higher and higher, and the traditional design methods of moulds can not adapt to today's. Requirements. Comparing with traditional die design, computer aided engineering (CAE) technology has great advantages in improving productivity, ensuring product quality, reducing cost and reducing labor intensity.

Injection moulds are used in all kinds of NC processing, most of which are CNC milling and machining centers. CNC WEDM and CNC EDM are also widely used in NC processing of injection moulds. WEDM is mainly used in the processing of various straight wall moulds, such as concave and convex moulds in stamping and injection moulds. Inserts, sliders, electrodes for EDM, etc. For the die parts with high hardness, it is impossible to process them by machining method, mostly by EDM. In addition, EDM is also used for the sharp corners, deep cavity parts, narrow grooves of the die cavity. The NC lathe is mainly used to process standard parts of mould rods, as well as die cavity or core of revolving body, such as injection moulds of bottle and basin, forging dies of shaft and disk parts. In die processing, the application of NC drilling machine can also improve the processing accuracy and shorten the processing cycle.

Moulds are widely used in modern manufacturing industry. Molds are almost needed to complete the forming process of product components. Therefore, the die and mould industry is an important part of the national high-tech industry and an important and valuable technical resource. Optimize the structure design of the die system and the CAD/CAE/CAM of the die parts, and make it more intelligent, improve the forming process and standardization level of the die parts, improve the precision and quality of the die manufacturing, reduce the workload and manufacturing cycle of the surface grinding and polishing of the die parts, and study and apply the high performance used for various types of die parts. In order to adapt to market diversification and new product trial-manufacture, the application of rapid prototyping manufacturing technology and rapid die-making technology to rapid manufacturing of die, plastic injection mould or die-casting mould should be the development trend of die production technology in the next 5-20 years.