FIELD: technological processes.
SUBSTANCE: invention relates to metal forming and can be used for stump molding of hollow parts with outer flange. Proposed device comprises spring-loaded crossarm, top plate with male die holder and male die, lower plate with male die holder and counter punch and spring-loaded intermediate plate. Intermediate plate is installed on guide columns with stops pressed into lower plate. On the intermediate plate a retractable matrix and a matrix with a stepped cavity and a conical section are coaxially fixed. On the guide columns the screws are installed, on which the spring-loaded crossarm with the upper matrix fixed on it is installed. Upper matrix has a working cavity oriented in the direction of the matrices located on the intermediate plate.
EFFECT: as a result, reduced metal wastes when parts with outer flange are obtained.
1 cl, 5 dwg
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