The key items to be considered in the shape design of the punching die are: die life and the shape of the escape angle, the cutting angle of the die, and the division of the die. Die life and shape of escape angle: This design is very important. If the design is incorrect, it will cause poor stamping processing such as punch damage, chip blockage or floating, and burr.
Shearing angle of master die: in order to reduce the punching force during shape punching, the master die can adopt the shearing angle design. When the shearing angle is large, the punching force is large, which is easy to cause the product to be buckled and deformed.
Division of master die: the master die must be subject to precision machining such as forming and grinding. Because it is concave, the grinding tool is not easy to enter, so it must be divided.
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