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2 325 451

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IPC

C21D9/22(2006-01-01)

C21D7/00(2006-01-01)

(21) (22)

Application

2006122765/02, 2006-06-26

(24)

Start date

2006-06-26

(22)

Actual filing date

2006-06-26

(45)

Published

2008-05-27

(72)

Inventor

Khvan Aleksandr DmitrievichKhvan Dmitrij VladimirovichTokarev Aleksandr Vasil'EvichDikarev Mikhail AleksandrovichBakhmatov Sergej IvanovichPanin Petr MikhajlovichBarannikov Sergej Anatol'Evich

(73)

Holder

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

METHOD OF TOOL STEEL PROPERTIES IMPROVEMENT Russian patent published in 2008 - IPC C21D9/22 C21D7/00

Abstract RU 2325451 C2

FIELD: technological processes, non-cutting shaping.

SUBSTANCE: invention is related to metals non-cutting shaping for improvement of tool steel resistance and may be used in aircraft building, shipbuilding and other industries. In order to improve tools resistance, stocks are subjected to plastic deformation, first by twisting to shear deformation on the stock surface, than by collapsing to logarithmic compression strain, accumulated plastic deformation is determined by the following dependence: where e_c is logarithmic compression strain; γ₀ - shear deformation on the stock surface, and then the stock is thermally treated.

EFFECT: improves tool steels resistance.

3 tbl

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RU 2 325 451 C2

Authors

Khvan Aleksandr Dmitrievich

Khvan Dmitrij Vladimirovich

Tokarev Aleksandr Vasil'Evich

Dikarev Mikhail Aleksandrovich

Bakhmatov Sergej Ivanovich

Panin Petr Mikhajlovich

Barannikov Sergej Anatol'Evich

Dates

2008-05-27—Published

2006-06-26—Filed