METHOD FOR ROTARY STRETCHING CONICAL ARTICLES Russian patent published in 1994 - IPC

Abstract RU 2007242 C1

FIELD: plastic metal working. SUBSTANCE: method involves rotary stretching of a blank on a mandrel by pressing-plugging rollers mounted with displacement relative to the vertical plane. During rotary stretching the front-pressing-plugging rollers deform the blank with pressing smaller than specified, and the back ones - deform the blank with pressing larger than specified. EFFECT: improved quality. 2 dwg

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RU 2 007 242 C1

Authors

Zubarev V.V.

Khmelev S.V.

Dates

1994-02-15—Published

1991-12-25—Filed