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2 036 047

(13)

C1

(51)

IPC

(21) (22)

Application

4874584/08, 1990-10-16

(22)

Actual filing date

1990-10-16

(45)

Published

1995-05-27

(72)

Inventor

Nechaev S.S.Trifonov V.G.

(73)

Holder

Institut Problem Sverkhplastichnosti Metallov Ran

METHOD OF MAKING PISTON MAINLY FOR INTERVAL COMBUSTION ENGINES Russian patent published in 1995 - IPC

Abstract RU 2036047 C1

FIELD: metal pressure forming. SUBSTANCE: method comprises steps of placing a cylindrical blank into a reinforcing insert; heating the blank with the reinforcing insert up to a quenching temperature, linear expansion coefficients of materials of the blank and the insert being different; performing a forging operation together with forming in the reinforcing member; quenching a piston, being made at once after it had been completely shaped. EFFECT: enhanced quality of piston. 1 cl, 1 tbl

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RU 2 036 047 C1

Authors

Nechaev S.S.

Trifonov V.G.

Dates

1995-05-27—Published

1990-10-16—Filed

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