The article mainly discussed the classification,feature and the developmental direction of the
pnnching technology. Elaborated the punching components formation principle, the basic dies
structure and the rate process and the principle of design; and designed some conventional
punching die:the die for big diameter three direction pipe which solved the problom of traditional
machining,the drawing and punching compound die with float punch-matrix,the drawing and
cutting compound dies with unaltered press,the compound die for the back bowl of the noise
keeper,the design of the compound die which could produce two workpieces in one punching,the
bending die for the ring shape part ,the bending die which used the gemel ,automate loading die
for cutting, the drawing,punching and burring compound dies with sliding automated loading,the
punching die for the long pipe with two row of hole,the drawing die for the square box shape
workpiece and the burring die for the box shape workpiece.The punching dies that utilized the
feature of the normal punch shaped the workpiece in the room temperature,and its efficiency and
economic situation is excellent.
The dies here discussed can be easily made,conveniently used, and safely operated.And it could
be used as the reference in the large scale production of similar workpieces.
Key word: punching,die,machincal,manufacture,die design, punching, bending, drawing