UNIVERSAL MOULD FOR SHAPING SHEET PART WITH SURFACE BICURVATURE Russian patent published in 2014 - IPC B21D5/02 B21D7/02 B21D22/20 

Abstract RU 2522973 C1

FIELD: metallurgy.

SUBSTANCE: bending in the mould is performed by male die acting on the blank laid on ring female die with working surface shaped to parabola. Male die radius is selected with due allowance for blank material resilience. Extra support is arranged at female die centre, its height being controlled by a set of replaceable washers. Note here that extra support working surface curvature radius exceeds minimum radius of curvature of produced parts with due allowance for their thickness.

EFFECT: expanded performances.

2 cl, 1 dwg

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RU 2 522 973 C1

Authors

Bulanov Roman Dmitrievich

Ivanushkova Elizaveta Andreevna

Kuklin Oleg Sergeevich

Popov Vasilij Ivanovich

Rjaben'Kij Leonid Matveevich

Shun'Gin Vladimir Jur'Evich

Dates

2014-07-20Published

2013-02-05Filed