Method of machining rotor blade wear indicators, and rotor blade plug for implementing the method

摘要

A method for machining at least one aircraft gas turbine engine rotor blade wear indicator is provided. The method includes machining the wear indicator using a laser so as to melt part of the blade, and collecting the molten material of the blade. The method further includes fitting a plug into the bathtub squealer. The plug includes at least one cavity for receiving the molten blade material.

主权项

1. An elastic plug for implementing a method for machining a wear indicator in an aircraft gas turbine engine rotor blade including machining a radial notch defining the wear indicator in a rim of a bathtub squealer formed at an end of the blade using a laser so as to melt part of the blade, and collecting the molten material of the blade, the plug comprising:
a monolithic, elastic body intended to be compressed and mounted in the bathtub squealer formed at the end of the aircraft gas turbine engine rotor blade, the body comprising
a lower wall intended to be in contact with a bottom wall of the bathtub squealer,a side wall intended to be in contact with the rim of the bathtub squealer, the side wall presenting a shape corresponding to a pressure face side and a suction face side of the blade, andan upper wall, wherein said side wall comprises a receiving cavity which opposes the wear indicator when the plug is housed in the bathtub squealer and is intended to receive the molten blade material.