B - Operations – Transporting – 23 – H
Patent
B - Operations, Transporting
23
H
204/117
B23H 3/00 (2006.01)
Patent
CA 1321977
ECM MACHINE WITH SKEWED WORKPART AND POCKETED CATHODES Abstract of the Disclosure A machine for electrochemically machining oversize airfoil blades of an integral bladed gas turbine engine rotor includes a yoke assembly on which the rotor is mounted and which is pivotable to place the lateral center plane of the rotor at an angle or skew relative to the center plane of the machine and opposed cathodes in an electrolyte chamber at a workpart machining position in the chamber. The cathodes have pockets to receive airfoil blades adjacent the individual blade to be machined without contact with the adjacent blades as the cathodes and workpart are moved relative to the workpart machining position during workpart positioning in the chamber and also during advancement of the cathodes from a cathode start machining position toward the workpart during machining. The yoke assembly includes a pivot pin and locking mechanism for releasably locking the angular position of the yoke assembly. The angular relation of the center planes as well as pockets in the cathodes permit full accessing of the individual airfoil blade to be machined by movement of the cathodes in multiple directions.
521014
Ex-Cell-O Corporation
Hinman Edmund R.
Malcolm Johnston & Associates
LandOfFree
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