Features of progressive die

Features of progressive die; 　　1) High stamping production efficiency. Progressive dies can complete the blanking, flanging, bending, deep drawing, three-dimensional forming and assembly of complex parts, reducing intermediate transfer and repeated positioning, and the increase in the number of stations does not affect production efficiency and can be punched Small precision parts.　　 2) Safe and simple operation. The operator does not need to reach into the dangerous area of u200bu200bthe mold when the progressive die is punched. For mass production, an automatic feeding mechanism is also used, and a safety inspection device is installed in the mold.　　3) Long mold life. The complex inner shape and shape can be decomposed into simple punch and die shapes, which are successively punched in sections. The process can be dispersed in several stations, and vacancies can be set in the areas where the processes are concentrated, thereby avoiding convex and concave shapes. The problem of too small mold wall thickness changes the stress state of convex and concave, and improves the strength of the mold. In addition, the progressive die also uses a discharge plate as a punch guide plate, which is also very beneficial to improve the life of the die.　　4) The product quality is high. The progressive die completes all the forming procedures of the product in one pair of die, which overcomes the constant operation and accumulated error caused by multiple positioning when using a simple die.　　5) The production cost is lower. Due to the complicated structure of the progressive die, the manufacturing cost is high, and the material utilization rate is low. However, due to the high production efficiency of the progressive die, the small number of presses, the number of operators and the workshop area required, the cost of semi-finished products is reduced. Storage and transportation, so the comprehensive production cost of product parts is not high.　　6) The design and manufacture are difficult, and the dependence on experience is strong. The progressive die structure is complex, the technical content is high, the design flexibility is great, and the difficulty is great; the experience, inference and visual inspection work in the design and manufacturing is large, the talent training time is long, and the differences between individuals are large; the same product parts can be many A variety of different design schemes, the design flexibility is large; the design and manufacturing cycle is long, the cost is high, and it is suitable for mass production. The progressive die is also limited by the size of the product parts, and the product size should not be too large.