FIELD: metal forming.
SUBSTANCE: invention can be used in production of rod parts with flattened head, in particular, electrodes on cold heading machines. At the first step of upsetting, a head is formed in the form of a sphere with a cylindrical part at the end. At the second transition, the cylindrical part is flattened from the sides to produce a flattened part and a neck. Width of flattened part exceeds diameter of sphere. Diameter of neck is equal to diameter of rod. Flattening device comprises female die, male die and return springs. Male die is made in the form of a T-shaped body with a base and a slot in which pins with cams are located. Each of the cams has a blind hole to receive a return spring.
EFFECT: reduction of number of transitions in production of parts and simplification of used equipment.
2 cl, 3 dwg
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