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2 711 697

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(51)

IPC

B21D53/78(2006-01-01)

B23P15/04(2006-01-01)

B21K3/04(2006-01-01)

B21D26/02(2011-01-01)

B23K20/02(2006-01-01)

(21) (22)

Application

2019111210, 2019-04-15

(24)

Start date

2019-04-15

(22)

Actual filing date

2019-04-15

(45)

Published

2020-01-21

(72)

Inventor

Astanin Vladimir VasilevichBerdin Nikolaj ValerevichLukyanov Vasilij VasilevichStarovojtov Semen VladimirovichUtkin Aleksej YurevichKarimbaev Telman DzhamaldinovichChernyshov Artem Aleksandrovich

(73)

Holder

Nauchno-Proizvodstvennaya Assotsiatsiya Aviatsionnykh Tekhnologij"

MANUFACTURING METHOD OF FRONT EDGE FAN BLADE STRENGTHENING PATCH Russian patent published in 2020 - IPC B21D53/78 B23P15/04 B21K3/04 B21D26/02 B23K20/02

Abstract RU 2711697 C1

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of metal patch for strengthening of front edge of fan blade. Two workpieces are made, diffusion welding of workpieces is performed in a package with inner cavity, twisting and pneumatic forming of the package. Inner cavity of the package is formed by milling the workpieces with providing the profile of the reinforced part of the patch with radius of variable value and side walls with the specified thickness. Prior to the diffusion welding, a process insert is installed in the package cavity, the insert repeating the cavity shape of the package with the anti-welding coating applied on it. Then, stack is assembled and its cavity is evacuated.

EFFECT: result is accurate configuration of inner cavity of patch.

12 cl, 6 dwg, 2 ex

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RU 2 711 697 C1

Authors

Astanin Vladimir Vasilevich

Berdin Nikolaj Valerevich

Lukyanov Vasilij Vasilevich

Starovojtov Semen Vladimirovich

Utkin Aleksej Yurevich

Karimbaev Telman Dzhamaldinovich

Chernyshov Artem Aleksandrovich

Dates

2020-01-21—Published

2019-04-15—Filed