SHOT PEENING FOR TOP OF COOLED BLADE

Title:

SHOT PEENING FOR TOP OF COOLED BLADE

Document Type and Number:

Japanese Patent JP3844679

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a shot peening method used for a head of a blade having cooling air passage orifices and capable of generating prestress similarly repeatable for all the blades in a relatively short shot peening time.
SOLUTION: This shot peening is carried out by using beads 31 produced in a sealed enclosure 29 for enclosing at least one of the heads 1 of the blades. The beads are generated by an active surface 27 of a sonotrode 28 for delimiting part of the enclosure 29. The beads 31 have a diameter larger than that of cooling air passage orifice 12.

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Inventors:

Benoit Jiyan Henri Bertoule
Francis-Ryusian-Guy Shearer
Wheelie-Lyonel Fraudin
Akan Offman
Stephan-Michel Kerney
Marie-Christine Marcel Towsama-Etoday
Guillaume Francois Rozier Simon

Application Number:

JP2001350520A

Publication Date:

November 15, 2006

Filing Date:

November 15, 2001

Export Citation:

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Assignee:

SNECMA
Snekuma Servis

International Classes:

B24C1/10; B23P6/00; F02C7/00; B24B1/04; B24B39/00; B24B41/06; B24C11/00; C21D7/06; F01D5/18; F01D5/28; (IPC1-7): F02C7/00; B23P6/00; B24C1/10; B24C11/00; C21D7/06; F01D5/18; F01D5/28

Domestic Patent References:

JP2001170865A
JP2001170866A

Attorney, Agent or Firm:

Yoshio Kawaguchi
Makoto Ono
Mitsuru Inoue
Akio Ichiiri
Katsuma Osaki
Takamasa Soma

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