The current development of stamping die technology presents three major characteristics

Die and press are two key factors that determine stamping quality, precision and production efficiency. Advanced presses must be equipped with advanced molds to give full play to their functions and achieve good benefits. The development direction of the mold is:

1. Make full use of IT technology to develop mold design and manufacturing. The increasing requirements of users on the speed, accuracy, and mold change efficiency of the press have promoted the development of molds. The exterior body and the engine are the two key components of the car. The car body molds, especially the large and medium-sized panel molds, are technology-intensive, reflecting the contemporary mold technology level, and are an important part of the car body manufacturing technology. The design and manufacture of body moulds takes up about two-thirds of the car's development cycle and has become the main restrictive factor for car remodeling. At present, it usually takes about 48 months to remodel and replace the car in the world, while it only takes 30 months in the United States. This car benefits from the application of CAD/CAE/CAM technology and three-dimensional solid automobile cover molds in the mold industry. Structural design software. In addition, the wide application of network technology provides reliable information carriers, and realizes remote design and manufacturing. At the same time, the application of IT technologies such as virtual manufacturing will also promote the development of the mold industry.

2. Shorten the trial time of metal forming molds. At present, the main development of hydraulic high-speed test presses and tensile mechanical presses, especially the mold test time on mechanical presses can be reduced by 80%, which has huge potential for saving. The development trend of this kind of tryout mechanical press is to use a multi-link stretching press, which is equipped with a numerically controlled hydraulic stretching pad, which has the function of parameter setting and state memory.

Three, the rapid development of progressive die in car body manufacturing. The use of progressive punching dies or combined punching dies to process rotors and stator plates on automatic punching machines, or application to the operation of plug-in parts, is a well-known stamping technology. In recent years, progressive combined punching dies have begun to be used in car body manufacturing. More and more widely used, the coil is directly processed into formed parts and stretched parts with progressive dies. The processed parts are also getting larger and larger, eliminating the need for subsequent processes such as plate cutting, oiling, and slab transportation that must be connected in series with multi-station presses and complete molds. The progressive combination die has been widely used in the American automobile industry. Its advantages are high productivity, low die cost, no need for sheet metal cutting, and 30% savings compared with the step die used on a multi-station press. However, the application of progressive combination die technology is limited by the drawing depth, guide and surface hardening of the strip edge material. It is mainly used for simple parts with relatively shallow drawing depth. Therefore, it cannot completely replace the multi-station press. Most parts should be processed on multi-station presses.