METHOD OF PRODUCING THIN-WALL ARTICLES Russian patent published in 2015 - IPC B21D22/20

Abstract RU 2554247 C2

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used in drawing of thin-wall articles. Square blank is cut from sheet. Wavy variable-length variable amplitude ledges are extruded at edges on said blank, directed to centre of blank cross-section. In drawing metal radial metal flow occurs to blank centre to allow a high deformation nearby angles.

EFFECT: enhanced performances.

3 cl, 6 dwg

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RU 2 554 247 C2

Authors

Brovman Tat'Jana Vasil'Evna

Brovman Dmitrij Mikhajlovich

Dates

2015-06-27—Published

2013-11-06—Filed