Title:
翼形部の疲労切欠き性能を高めるための方法及び装置
Document Type and Number:
Japanese Patent JP5264165
Kind Code:
B2
Abstract:
A method of reducing crack propagation in an airfoil (22) includes: providing an airfoil (22) having a root (36) spaced apart from a tip (34), spaced-apart leading and trailing edges (30, 32), a suction side (40) extending from the leading edge (30) to the trailing edge (32), and an opposed pressure side (38) extending from the leading edge (30) and the trailing edge (32), supporting the airfoil (22) against bending loads. The airfoil (22) is burnished using a burnishing element (42), so as to create at least one burnished section (68) of residual compressive stress. The at least one burnished section (68) is located adjacent the leading edge (30) and spaced from the leading edge (30) by an offset distance selected so as to avoid deformation of the leading edge (30).
Inventors:
Albert Luna
Joshua Lee Miller
William Terence Dingwell
Michael jay blank
William Lee Imhof
Paul Monchel
Dale Robert Lombardo
Andrew Philip Woodfield
Joshua Lee Miller
William Terence Dingwell
Michael jay blank
William Lee Imhof
Paul Monchel
Dale Robert Lombardo
Andrew Philip Woodfield
Application Number:
JP2007338681A
Publication Date:
August 14, 2013
Filing Date:
December 28, 2007
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C21D7/04; F02C7/00; C22F1/00; C22F1/10; C22F1/18; F01D5/14
Domestic Patent References:
| JP2002526271A | ||||
| JP57015609A |
Foreign References:
| US20060147311 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa