The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2014
Filed:
Feb. 09, 2009
Applicants:
Masahiko Mega, Takasago, JP;
Kei Osawa, Takasago, JP;
Masahiko Onda, Takasago, JP;
Inventors:
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23P 6/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbine rotor blade repair method which reduces the occurrence of cracks due to welding is provided. A turbine rotor blade repair method for repairing damage of a fin at a tip of a turbine rotor blade includes overlaying a damaged portion of the fin with metal by welding (step S); peening on a boundary region between the fin and the overlaying metal (step S); and after the peening, performing solution treatment to repair the damage of the fin of the turbine rotor blade (step S).