Material removal method

摘要

A repair method for repairing a component (6a) of a gas turbine engine (10). The method comprises first and second steps. The first step comprises directing an energy beam toward the component (6a) to ablate a first region (54) of material to form a gap extending through the component (6a) between a repair region (58) a base region (58) of the component, wherein subsequent to the first step the repair region (58) and base region (56) are joined by a connecting portion (60). In the second step, an energy beam is direct toward the component (6a) to ablate the repair region (58) to remove the repair region (58) from the component (6a).

主权项

1. A method of repairing a rotor or stator blade of a gas turbine engine, the method comprising:
in a first step, maneuvering a laser ablation tool within the gas turbine engine to a rotor or stator blade that is to be repaired within the gas turbine engine, and directing an energy beam from the laser ablation tool toward the rotor or stator blade to ablate a first region of material to form a gap extending through the rotor or stator blade between a repair region and a base region of the rotor or stator blade, such that subsequent to the first step, the repair region and the base region are joined by a connecting portion formed by a region of material not removed in the first step; and in a second step, directing the energy beam toward the rotor or stator blade to ablate the repair region to remove the repair region from the rotor or stator blade.