Comparison of precision progressive dies at home and abroad

Measure the level of multi-station progressive die, mainly including mold manufacturing accuracy (including dimensional accuracy, step accuracy, surface roughness), mold service life (including sharpening life, punching speed), mold manufacturing cycle and complexity, etc. Elements.　　The main gap between the domestic progressive mold and the international advanced level　　The gap is mainly manifested in the following aspects: 　　(1) Compared with the international advanced level, the precision of mold manufacturing is one level lower in the degree of refined mold manufacturing.　　(2) Compared with the international advanced level, the service life of the mold is more than 30% lower. In particular, the low life of one-time sharpening leads to an increase in the number of mold maintenance and reduces the efficiency of stamping production. In addition, the punching speed used by the mold on the high-speed punching machine is about 150 times/min lower.　　(3) Compared with the international advanced level in terms of mold reliability and stability, the adjustment and maintenance time during mold trial and mold use has increased by more than 30%. The gap in reliability and stability of domestic molds is lower than the international advanced level, which is a factor that directly affects the market competitiveness of domestic molds.　　(4) Compared with the international advanced level in the mold manufacturing cycle, the gap has been narrowing, and the manufacturing cycle of some mold categories has been synchronized with the international advanced level. However, in the case of a large number of orders and a concentrated manufacturing cycle, the mold cannot be delivered on schedule. From an overall point of view, the realization rate of large-scale mold production capacity and delivery time is more than 10% lower than the international advanced level.