MANUFACTURE OF HOLLOW BLADE OF TURBINE ENGINE AND STEPWISE HOT TWIST DEVICE USED THEREIN - Societe Nacional Deuteyudo e Do Contriyucón Do Motor Davuación, "S.N.U.U.Se.M. Ah."

Title:

MANUFACTURE OF HOLLOW BLADE OF TURBINE ENGINE AND STEPWISE HOT TWIST DEVICE USED THEREIN

Document Type and Number:

Japanese Patent JP3477043

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a manufacturing method for a hollow blade of a turbine engine, and a stepwise hot twist device used in its manufacturing method.
SOLUTION: A manufacturing method of a hollow blade for a turbine engine includes a stepwise hot twist work of a manufacturing element l of an impeller by hot twist of the element l made of titanium alloy of a TA6V type at a temperature of 700°C or more, by action of a plurality of bars 5 operated by rotary motion around a twist shaft, acting on collar which is beforehand fixed on the element 1 arranged according to twist formula which is set beforehand. An allocation and the number of the collars are decided so as to obtain a linear change of twist between the collars. A specified device is used for carrying out work.

Inventors:

Mathieu Philip Alberto Vision
Bernard Armand Rene Cost Plan
Alan Giyojuyu Henri Loryou

Application Number:

JP22638097A

Publication Date:

December 10, 2003

Filing Date:

August 22, 1997

Export Citation:

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Assignee:

Societe Nacional Deuteyudo e Do Contriyucón Do Motor Davuación, "S.N.U.U.Se.M. Ah."
Eta Brismon Robert Courzette

International Classes:

F01D5/18; B21D11/14; B21D53/78; C22F1/00; C22F1/18; F01D5/28; F02C7/00; (IPC1-7): F01D5/18; C22F1/18; F01D5/28; F02C7/00

Domestic Patent References:

JP8189303A
JP5727626A
JP4223823A
JP5192729A
JP4134206A

Attorney, Agent or Firm:

Yoshio Kawaguchi (2 outside)

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