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(19)

(11)

2 404 039

(13)

(51)

IPC

B23P15/04(2006-01-01)

B21D53/78(2006-01-01)

B21H7/16(2006-01-01)

(21) (22)

Application

2005124666/02, 2005-08-02

(24)

Start date

2005-08-02

(22)

Actual filing date

2005-08-02

(45)

Published

2010-11-20

(72)

Inventor

Berg Zhan-P'ErBreton Mishel'Fransheh Zhan-Mishel' Patrik MorisLor'E AlenSago Filipp

(73)

Holder

Snekma

METHOD OF ROLLING PARTS THAT FORM HOLLOW VANE Russian patent published in 2010 - IPC B23P15/04 B21D53/78 B21H7/16

Abstract RU 2404039 C2

FIELD: process engineering.

SUBSTANCE: invention relates to rolling gas turbine engine hollow vanes. First at least two external primary parts are produced. Two outer primary parts are jointed together by diffusion welding to produced vane blank comprises body part and foot part. Every outer primary part of gas turbine engine hollow vane is produced by cutting cylindrical ring that comprises tubular wall which has thickness "e" and swell "E" on one of its ends over the entire height. Note here that wall segment comprising E-thick part of the foot and longer e-long foot part is produced.

EFFECT: reduced costs and material input.

11 cl, 6 dwg

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RU 2 404 039 C2

Authors

Berg Zhan-P'Er

Breton Mishel'

Fransheh Zhan-Mishel' Patrik Moris

Lor'E Alen

Sago Filipp

Dates

2010-11-20—Published

2005-08-02—Filed