| 摘要 |
PROBLEM TO BE SOLVED: To alleviate, by heat treatment, stress generated in repairing a component having a full hoop structure in a gas turbine engine by welding. SOLUTION: A crack 52 is subjected to welding by a welding tool 60. After welding, heat treatment is applied to a zone 54 and a second zone 56 opposite the zone 54. The circumferential width of the zones is selected so as to be enough to provide stress relief to the weld zone 53 along the crack 52. The stress generated by welding is alleviated by heat-treating a place opposite the weld zone, without generating residual stress to the weld zone additionally. COPYRIGHT: (C)2007,JPO&INPIT |
