Methods and systems for forming cooling holes having...

Details Methods and systems for forming cooling holes having... Methods and systems for forming cooling holes having...

2011-06-21

2011-06-21

Neckel, Alexa D. (Department: 1723)

Electrolysis: processes, compositions used therein, and methods

Electrolytic erosion of a workpiece for shape or surface...

Aperture making

C204S22400M

Reexamination Certificate

active

07964087

ABSTRACT:
A method for forming a hole in an object is provided. The method includes forming a starter hole in the object, providing an electrochemical machining electrode that includes insulation that extends only partially around the electrode, and inserting the electrode into the starter hole to form a hole in the object that has an inlet defined by a first cross-sectional area and an outlet defined by a second cross-sectional area.

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U.S. Appl. No. 11/726,410, filed Mar. 22, 2007 with first-named inventor Ching-Pang Lee.

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