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2 167 017

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Application

99105778/02, 1999-03-24

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Start date

1999-03-24

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Actual filing date

1999-03-24

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Published

2001-05-20

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Inventor

Shport V.I.Murav'Ev V.I.Ivanov Ju.L.Mar'In B.N.Kuz'Min V.F.Mar'In S.B.

(73)

Holder

Komsomol'Skoe-Na-Amure Aviatsionnoe Proizvodstvennoe Ob"Edinenie

METHOD FOR HOT FORMING IN HYDRAULIC PRESSES Russian patent published in 2001 - IPC

Abstract RU 2167017 C2

FIELD: plastic metal working, namely, hot forming in hydraulic presses. SUBSTANCE: method comprises steps of placing blank between die and punch of hydraulic press, heating and shaping it; increasing pressure acting upon blank at cooling it after drawing together die and punch; selecting value of pressure in such a way that to overcome yield limit of blank material. Method provides favorable conditions for plastically deforming blank. EFFECT: lowered residual stresses in formed part.

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RU 2 167 017 C2

Authors

Shport V.I.

Murav'Ev V.I.

Ivanov Ju.L.

Mar'In B.N.

Kuz'Min V.F.

Mar'In S.B.

Dates

2001-05-20—Published

1999-03-24—Filed

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