B - Operations – Transporting – 23 – Q
Patent
B - Operations, Transporting
23
Q
B23Q 9/00 (2006.01) B23B 47/28 (2006.01)
Patent
CA 2048806
The present invention provides a method and apparatus including a rotor mountable fixture for guiding a cutting tool powered by a hand held air motor to machine a gas turbine engine rotor without removing the rotor from its mountings in the engine. In one particular embodiment the fixture includes a root having the same contour as a blade root slot of a rotor, a base having a platform attached to the root, and a machining guide in the form of a bushing restrained in a guide slot operable to receive and guide a hand held air motor powered cutting tool for machining the rotor. The present invention provides an accurate means to machine a gas turbine engine rotor without removing the rotor from its mounting. In one particular embodiment a method for machining the rotor in the field is provided using a hand held air motor to power a machining tool to cut a blade damper pocket in the dovetail slot of a pressure compressor rotor.
Dunkman Dewey Duane
Mueller Peter Walter
Stevenson Joseph Timothy
Stonom Elbert
Company General Electric
Craig Wilson And Company
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