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2 494 829

(13)

(51)

IPC

B21C37/02(2006-01-01)

B21D35/00(2006-01-01)

(21) (22)

Application

2011150427/02, 2011-12-13

(24)

Start date

2011-12-13

(22)

Actual filing date

2011-12-13

(45)

Published

2013-10-10

(72)

Inventor

Voronkov Aleksandr Vasil'EvichLogunov Leonid PetrovichPozdnjakov Aleksandr ViktorovichRomashin Mikhail SergeevichChumadin Anatolij Semenovich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Kosmicheskij Nauchno-Proizvodstvennyj Tsentr Im. M.V. Khrunicheva"

METHOD OF PRODUCING METAL SHEET Russian patent published in 2013 - IPC B21C37/02 B21D35/00

Abstract RU 2494829 C2

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to production of sheet metal. Intermediate blank is produced by bending. Produced blank walls are thinned to bend the blank into sheet. Intermediate blank is produced in the form of cylinder while wall thinning is performed by rotary drawing. Note here that said blank is arranged at mandrel and locked by clamps.

EFFECT: expanded performances.

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RU 2 494 829 C2

Authors

Voronkov Aleksandr Vasil'Evich

Logunov Leonid Petrovich

Pozdnjakov Aleksandr Viktorovich

Romashin Mikhail Sergeevich

Chumadin Anatolij Semenovich

Dates

2013-10-10—Published

2011-12-13—Filed