The manner which is machined installation tool for machining the gas turbine rotor, without removing the rotor which is exposed from the bridge and the manner null which machines the compressor bucket absorber pocket

摘要

PURPOSE: To provide a device including a fixture free to install on a rotor to machine the gas turbine engine rotor without removing it from a frame in an engine by guiding a machining tool to be driven by a manual air motor. CONSTITUTION: A fixture 30 includes a root part 32 having the same outline as a root slot 16 of a rotor 10, a base 34 having a base 36 installed on this root part and a machining guide in the shape of a bush 50 constrained in the inside of a guide slot 38 so as to receive and guide a cutting tool to be driven by a manual air motor 60 to machine the rotor. Additionally, the rotor is machined at a working site so as to cut and form a moving blade damper pocket 20 on a dovetail slot of a compressor rotor by driving a machining tool by using the manual air motor.