METHOD FOR MANUFACTURE OF LONG HOLLOW ARTICLES AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2020 - IPC B21B17/02

Abstract RU 2721253 C1

FIELD: technological processes.

SUBSTANCE: group of inventions relates to processing of metals and materials by pressure when making long-length hollow articles such as cups and bushings. Reduction of force applied for deformation of workpiece due to creation in zone of plastic deformation of shear deformations caused by presence of active friction forces, is ensured by the fact that billet is pierced and rolled over stationary billet by combined directional translation of puncheon and rotating rollers.

EFFECT: reduced force required for workpiece deformation.

12 cl, 11 dwg

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RU 2 721 253 C1

Authors

Katrich Yurij Pavlovich

Kamenev Evgenij Aleksandrovich

Evteev Evgenij Alekseevich

Dates

2020-05-18—Published

2019-09-09—Filed