FIELD: machine building.
SUBSTANCE: ring blank is pre-profiled by method of electroforging of thickened ends of the ring blank with thinned central part, and local deformation is performed by two passes with creation of the profile of one half of the roll at first run, and after blank rotation by 180° - with profile creation of second half of roller at second run with blank basing as per thinned part during both runs. For the method implementation the inclined die and side roller, side driven roller with work profile being mirror to the profile of roller half are used.
EFFECT: increased strength of product due to production of one-piece-rolled forging with counterdraft.
2 dwg
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