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2 320 443

(13)

(51)

IPC

B21D51/02(2006-01-01)

C21D7/04(2006-01-01)

C22F1/00(2006-01-01)

B82B3/00(2006-01-01)

(21) (22)

Application

2006121277/02, 2006-06-15

(24)

Start date

2006-06-15

(22)

Actual filing date

2006-06-15

(45)

Published

2008-03-27

(72)

Inventor

Golenkov Vjacheslav AleksandrovichMalinin Vladislav GeorgievichRadchenko Sergej Jur'EvichKorotkij Gennadij PetrovichMalinin Vladimir Vladislavovich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet"

METHOD FOR PRODUCING METALLIC SLEEVES WITH SUBMICRO- AND NANO-CRYSTALLINE STATES OF MATERIAL Russian patent published in 2008 - IPC B21D51/02 C21D7/04 C22F1/00 B82B3/00

Abstract RU 2320443 C1

FIELD: plastic working of metals, possibly manufacture of sleeves with fine crystalline structure.

SUBSTANCE: method comprises steps of simultaneously working inner and outer surfaces of hollow blank; working inner surface by multiple reciprocation axial motion of expanding punch; working outer surface by rolling around in roller die while fixing ends of blank and squeezing blank.

EFFECT: improved mechanical properties of ready articles, lowered metal consumption.

1 dwg, 1 ex

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RU 2 320 443 C1

Authors

Golenkov Vjacheslav Aleksandrovich

Malinin Vladislav Georgievich

Radchenko Sergej Jur'Evich

Korotkij Gennadij Petrovich

Malinin Vladimir Vladislavovich

Dates

2008-03-27—Published

2006-06-15—Filed