FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, particularly, to production of hollows body from round billet by rotary extrusion or drawing. Proposed device comprises revolving mandrel, revolving axially moving pressure element arranged on machine tool and, at least, one reeling roller to be fed axially and/or radially to aforesaid mandrel. Said pressure element accommodates, at least, one female die for mandrel to enter for forming machine part moving axially relative to pressure element. Proposed method comprises forming cylindrical outer surface of revolving billet by feeding, at least, one reeling roller, deep drawing or extruding central section of machine part. Hollow body base section is formed and fed axially into female die for extruding.
EFFECT: higher strength of hollow body.
15 cl, 46 dwg
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