초록 ▼

A method of and apparatus for repairing turbine blades wherein the repair requires the input of considerable thermal energy during a welding or brazing operation for example. The method involves the step of pre-distorting the blade prior to the welding or brazing operation so that the distortion tha

A method of and apparatus for repairing turbine blades wherein the repair requires the input of considerable thermal energy during a welding or brazing operation for example. The method involves the step of pre-distorting the blade prior to the welding or brazing operation so that the distortion that is expected to occur during welding or brazing leaves the blade after repair in its proper position. A clamp means may be provided to prevent parts of an individual blade from being predistorted so as to localize the predistortion in the required area. A tool for predistorting the blade ensures that a physical force may be applied to a local area of the blade.

대표청구항 ▼

A method of repairing a turbine blade, said method including a repair step requiring the input of considerable thermal energy to the blade, said method further comprising the steps of: (a) applying a physical force to a turbine blade to cause distortion in a direction opposite to the distortion expe

A method of repairing a turbine blade, said method including a repair step requiring the input of considerable thermal energy to the blade, said method further comprising the steps of: (a) applying a physical force to a turbine blade to cause distortion in a direction opposite to the distortion expected to occur following the repair step incorporating the input of considerable thermal energy to the blade; (b) carrying out said repair step requiring the input of considerable thermal energy; (c) removing any physical force applied to the blade; (d) carrying out a stress relieving heat treatment to said blade.