METHOD OF MANUFACTURING BUSHING WITH OUTER ANNULAR MEMBER Russian patent published in 2002 - IPC

Abstract RU 2191088 C2

FIELD: plastic working of metals. SUBSTANCE: method involves cutting bar of round section; aligning ends thereof; forming flange on bar by upsetting; forming cavity by extrusion and outer annular member; punching opening. All operations are performed at stamping stations. Outer annular member is formed and opening is punched at individual stamping stations. Opening is punched at final stamping station. Method allows hollow steel parts with outer annular member to be produced. EFFECT: increased efficiency and improved quality of articles. 1 dwg

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RU 2 191 088 C2

Authors

Lavrinenko Ju.A.

Gil'Manov F.S.

Galliakhmetov T.Sh.

Dates

2002-10-20—Published

2000-11-13—Filed