METHOD FOR SHAPE-FORMING OF HOLLOW ARTICLES WITH LATERALS Russian patent published in 1995 - IPC

Abstract RU 2048225 C1

FIELD: plastic metal working; manufacture of T-pieces from pipe billets. SUBSTANCE: method involves shaping laterals by applying variable internal pressure and upsetting the pipe billet. Internal pressure is changed in accordance with the relation submitted in the Description. EFFECT: preventing loss of stability in the billet material. 2 dwg, 1 tbl

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RU 2 048 225 C1

Authors

Egorov V.G.

Chudakov P.D.

Davydov O.Ju.

Dates

1995-11-20—Published

1993-02-03—Filed