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在冷冲压工作中,圆筒形零件(如图1)的冲制,一般都经过两道或几道工序完成。压延次数多少决定于圆筒直径、壁高、零件材料等等因素。在零件的壁高、圆简直径、零件材料都合适的情况下,可以采用落料又压延的复合冲模。但是,当零件的壁高很小时,由于凸凹模的强度和工艺性不好,虽然能够一次压延成,就不采用落料压延的复合冲模了。在这种情况下,落料和压延只好分别进行。这样是不很经济的。为了解决这个问
In the cold stamping work, cylindrical parts (Figure 1) of the stamping, usually after two or more processes to complete. The number of calendering depends on the cylinder diameter, wall height, part material and so on. Wall height in the parts, the diameter of the circle Jane, parts materials are suitable circumstances, you can use blanking and rolling composite die. However, when the part wall is very small, due to the punch and die strength and processability is poor, although it can be a calender, do not use blanking calendering composite die. In this case, blanking and rolling had to be done separately. This is not very economical. In order to solve this question