FIELD: metal processing.
SUBSTANCE: invention relates to metal forming and can be used in producing of valve type rod products. Cut from bar billet is installed on female die in movable hub hole, arranged in die housing. Initially between female die and hub working surfaces cavity is formed, which height is not exceeding two billet diameters. Then, billet is extruded under male die action with fixed hub. At that, extrusion is carried out simultaneously into female die aperture and into said cavity. Then, under hub and male die action valve plate and stem are simultaneously formed.
EFFECT: result is higher efficiency of production and improved strength and operational properties of finished products.
1 cl, 1 dwg
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