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2 212 969

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Application

2000125289/02, 2000-10-05

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Start date

2000-10-05

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Actual filing date

2000-10-05

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Published

2003-09-27

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Inventor

Mar'In B.N.Filimonov S.V.Sidorov Ju.G.Murav'Ev V.I.Mar'In S.B.Merkulov V.I.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Aviatsionnoe Proizvodstvennoe Ob"Edinenie Im. Ju.A.Gagarina"

METHOD FOR HOT FORMING OF PART OF SHEET BLANK Russian patent published in 2003 - IPC

Abstract RU 2212969 C2

FIELD: hot forming of parts of sheet blanks from hard-to-form alloys. SUBSTANCE: method comprises steps of placing blank in clamps over die with gap exceeding value of linear thermal expansion of blank at heating it until predetermined temperature; moving punch at heating blank while keeping minimum spacing between punch and blank; mounting sheet blank in clamps by effort providing pulling out of blank from clamps at stretching blank along punch. EFFECT: enhanced quality of formed parts due to reduced saturation of surface layer of blanks with oxygen and hydrogen. 1 dwg, 1 ex

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RU 2 212 969 C2

Authors

Mar'In B.N.

Filimonov S.V.

Sidorov Ju.G.

Murav'Ev V.I.

Mar'In S.B.

Merkulov V.I.

Dates

2003-09-27—Published

2000-10-05—Filed

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