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2 011 462

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IPC

(21) (22)

Application

93003814/27, 1993-01-25

(22)

Actual filing date

1993-01-25

(45)

Published

1994-04-30

(72)

Inventor

Mednikov Ju.P.Derbugov V.V.Kalinin A.S.Khramushin A.M.Rjanskij A.S.Anbinder V.Sh.Kroshkin K.N.Neshchadin V.P.Vakulenko S.P.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa Predprijatie

METHOD FOR FORMING RELIEF SURFACE OF THIN BLANK Russian patent published in 1994 - IPC

Abstract RU 2011462 C1

FIELD: mechanical engineering. SUBSTANCE: support is inserted into thin blank. Then blank is transferred into chamber filled with hydrogen at a pressure of 15 MPa where it is thermocycled three times to 700 C with natural cooling. After heat treatment the blank is withdrawn from chamber and perforated templet is tightly slipped thereon. Applying pressure, for example of air, blank is deformed to the shape of templet perforations. EFFECT: higher efficiency. 2 cl, 3 dwg

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RU 2 011 462 C1

Authors

Mednikov Ju.P.

Derbugov V.V.

Kalinin A.S.

Khramushin A.M.

Rjanskij A.S.

Anbinder V.Sh.

Kroshkin K.N.

Neshchadin V.P.

Vakulenko S.P.

Dates

1994-04-30—Published

1993-01-25—Filed