FIELD: technological processes.
SUBSTANCE: hollow billet is prepared, and its surface is further processed by rolling in roll matrix with fixation of billet ends. Processing of external surface of billet is carried out simultaneously with reciprocal motion of one or more rollers that have section of larger diameter.
EFFECT: increased mechanical properties of metal bushings and reduction of metal consumption in their manufacturing.
1 dwg, 1 ex
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Authors
Dates
2008-12-10—Published
2007-03-26—Filed