METHOD FOR PRODUCTION OF EXTENDED CYLINDRICAL PRODUCTS Russian patent published in 1994 - IPC

Abstract RU 2006318 C1

FIELD: metal pressure shaping. SUBSTANCE: rotational drawing is effected in stages. At the first stage a part of the billet surface is rotational drawn. Then the billet placed on a mandrel is reinstalled and the back rotational drawing of the yet untreated part of the billet surface is effected. EFFECT: improved quality of the product. 4 dwg

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RU 2 006 318 C1

Authors

Zubarev V.V.

Khmelev S.V.

Dates

1994-01-30—Published

1991-12-27—Filed