Precision stamping molds are gradually improving with the continuous development of technology

   The development momentum of stamping molds in the new era is strong in product fields such as new energy, automation equipment, medical devices, aerospace, and energy conservation and emission reduction. This year, precision multi station progressive molds dominate the mainstream products among exhibitors at the Guangzhou International Mold Exhibition. Not only are there a large number of exhibitors and a wide variety coverage, but the quality and technical content of molds are also much higher than previous mold exhibitions.

   Professionals have stated that in recent years, the overall technical level of advanced precision stamping molds has improved rapidly, with significant improvements in performance indicators such as mold technology, manufacturing accuracy, service life, and manufacturing cycle. A considerable number of high-end and high-quality molds have reached or are close to the international level of similar molds. The service life of the air conditioner fin progressive die produced by the company can reach 500 million strokes, and its production scale and technological development are in a leading position in China. The high-precision micro connector with a spacing of 0.4mm developed has a progressive die manufacturing accuracy of 0.5, and the smallest convex die of 0.13mm is directly ground to achieve a mirror finish, ensuring that the thinnest part of the pin is 0.17mm, the bending accuracy is 0.01mm, and high-precision requirements such as S-shaped bending are met. The automatic laminated progressive die for motor iron cores produced by the company has a service life of over 150 million strokes, and its technical level and laminating technology are close to the advanced level of similar foreign molds. The specialized production level and capability of the large iron chip progressive die with a diameter of 0.5m produced on a 400 ton high-speed punch press, the large precision block composite die with a 0.88m square iron chip and 90 degree rotation, and the extra large precision die with a 1.2m diameter fixed rotor plate are in a leading position in China.

   Specialization greatly improves the innovation capability of stamping die enterprises, and their technological level develops towards specialization, precision, excellence, and strength, giving rise to many high-tech precision stamping dies and new technologies. It is reported that the air conditioning fin stepping precision progressive mold that urgently needs to be exhibited this time can meet the rapid switching production of 5 types of blade shapes, has certain flexible production characteristics, and the mold level is comparable to the international advanced level. The 37 station progressive die of the lead frame in the exhibition, with three rows of the first mock examination, punched 48 inner and outer lead legs within 1212mm, with the minimum spacing of 0.12mm, and the flatness of the product within 0.01mm. Its high-speed mass production performance and lifespan are comparable to international advanced levels, and it has obtained structural innovation patents.

   Many domestically produced precision stamping molds have a smaller gap in lifespan and main performance compared to international advanced levels. The overall level of some precision stamping molds is comparable to international advanced levels, not only completely replacing imports, but also exporting a considerable number of molds to industrialized countries and regions such as the United States and Japan. The overall level of precision stamping dies in our country is close to the international advanced level, and a considerable number of precision stamping dies are going abroad to participate in global competition.