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2 077 401

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C1

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IPC

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Application

94040928/02, 1994-11-08

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Actual filing date

1994-11-08

(45)

Published

1997-04-20

(72)

Inventor

Sizov Evgenij Stepanovich[Ru]Sidorenko Grigorij Grigor'Evich[Uz]Tumasov Aleksandr Danilovich[Uz]Mirzaev Amin Turaevich[Uz]Mikhajlov Aleksandr Vasil'Evich[Uz]Gromov Anatolij Vasil'Evich[Ru]

(73)

Holder

Tashkentskoe Aviatsionnoe Proizvodstvennoe Ob"Edinenie Im.V.P.Chkalova

METHOD OF FORMING PARTS SUCH AS FRAMINGS FROM HOLLOW SHEET BLANKS Russian patent published in 1997 - IPC

Abstract RU 2077401 C1

FIELD: plastic metal working. SUBSTANCE: hollow blank is placed in die and it is filled by ductile metal, for example by easy-to-melt metal such as Wood's alloy at temperature being close to its melting point. Then blank is deformed by action of pressure at partially pressing out ductile metal from shaping cavity. Lateral wall of blank is upset and its angular portions are subjected to restricted bending. Easy-to-melt metal is melting out off formed part, for example in boiling water. EFFECT: enhanced efficiency. 5 dwg

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RU 2 077 401 C1

Authors

Sizov Evgenij Stepanovich[Ru]

Sidorenko Grigorij Grigor'Evich[Uz]

Tumasov Aleksandr Danilovich[Uz]

Mirzaev Amin Turaevich[Uz]

Mikhajlov Aleksandr Vasil'Evich[Uz]

Gromov Anatolij Vasil'Evich[Ru]

Dates

1997-04-20—Published

1994-11-08—Filed

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