6、moldAbstract:This design is the cutting and bending die design with “mouth” type steel wire, according to the size of the parts, the steel No. 20 is initially selected as the material, because of its high toughness and mass production. According to these features, the design initially se
7、lects the steel No. 20 as the compound die, and calculates cutting force and bending force. And then the design initially selects the press machine, and calculates the cutting edge sizes and tolerances of convex die and concave die. Finally, the design selects the compone