Core reminder: Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts.
Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing. It is called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts.
In recent years, the overall technical level of advanced precision stamping dies has improved rapidly, and the performance indicators of mold technology, manufacturing accuracy, service life and manufacturing cycle have been significantly improved. A considerable number of high-end and high-quality molds have reached the overall level of Close to the international level of similar molds. For example, the company's air conditioner fin progressive die has a service life of up to 500 million strokes, and its production scale and technological development are in a leading position in China. The developed 0.4mm pitch high-precision miniature connector progressive die has a manufacturing accuracy of 0.5, and the smallest punch of 0.13mm is directly ground to a mirror surface, which ensures that the smallest pin of the part is 0.17mm, and the bending accuracy is 0.01mm and S-shaped. High precision requirements such as bending. The motor core automatic lamination progressive die produced by the company has a service life of more than 150 million strokes. The technical level and lamination technology are close to the advanced level of similar foreign molds. The developed 0.5m diameter large iron chip progressive die produced on a 400-ton high-speed punch, 0.88m square iron chip large precision block composite die with 90 rotations, and 1.2m diameter stator and rotor piece extra large precision punching die, etc. The production level and capacity are in a leading position in China.
Specialization has greatly improved the innovation ability of stamping die enterprises, and the technological level has developed in the direction of specialization, precision, excellence and strength, and many high-tech precision stamping dies and new technologies have emerged. It is reported that the step-by-step precision progressive die for air conditioner fins, which is urgently to be exhibited this time, can meet the rapid switching production of five types of sheet shapes, has certain flexible production characteristics, and the level of the die is equivalent to the international advanced level. The 37-station progressive die for the lead frame exhibited has one die with three rows. 48 inner and outer lead legs are punched within 1212mm, with a minimum spacing of 0.12mm, and the flatness of the product is within 0.01mm. Its high-speed batch production performance and life are equivalent to the international advanced level, and it has obtained structural innovation patents.
Many domestic precision stamping dies have a smaller and smaller gap with the international advanced level in terms of life and main performance. The overall level of some precision stamping dies is equivalent to the international advanced level, not only completely replacing imports, but also a considerable part of the mold is exported to the United States , Japan and other industrialized developed countries and regions. The overall level of precision dies in my country is close to the international advanced level, and a considerable number of precision dies are going abroad and participating in world competition.
The 2016-2021 in-depth analysis of the precision stamping die industry and the "Thirteenth Five-Year" development planning guidance report show that with the continuous emergence of new processes and new products, foreign stamping dies have moved from conventional single progressive dies to multi-functional combined dies, The production line is developing in the direction of supporting combined mold tooling, extra-large progressive dies, and micro-parts stamping forming dies, while most Chinese companies still focus on the serialization and industrialization of conventional single-pair progressive dies, and have not yet mastered special high-tech products. Sophisticated molds, such as the key technologies for forming stamping dies for extra-large, high-precision, ultra-high-speed, ultra-thin, super-strength and micro-parts, are not designed for multi-functional composite molds. Therefore, China also needs to continue to carry out research on the key technologies of new molds, expand its application areas, and lay a solid foundation for catching up with the international advanced level.
In the future, the general trend of high-speed precision stamping technology and the development of high-end molds as the core is to develop in the direction of precision, high-speed, flexibility, networking, integration, information and intelligence, low-carbon environmental protection and globalization.
