Electrolysis: processes – compositions used therein – and methods – Electrolytic erosion of a workpiece for shape or surface... – With control responsive to sensed condition
Patent
1996-05-29
1997-09-30
Valentine, Donald R.
Electrolysis: processes, compositions used therein, and methods
Electrolytic erosion of a workpiece for shape or surface...
With control responsive to sensed condition
204224M, 205652, B23H 300, B23H 718, B23H 732
Patent
active
056722630
ABSTRACT:
According to the present invention, a method and apparatus for electrochemically machining a workpiece is provided. The method includes the steps of: (1) providing a machine head, having an electrically conductive face; (2) providing a sensor, for sensing a distance between a first surface and a second surface of the workpiece; (3) positioning the electrically conductive face in close proximity to the first surface, leaving a substantially constant space therebetween; (4) providing a pool of fluid in contact with the second surface of the workpiece; (5) placing the sensor in communication with the pool of fluid; (6) disposing an electrolytic fluid in the space between the electrically conductive face and the first surface; (7) establishing a potential difference between the workpiece and the electrically conductive face, thereby causing charged particles of the workpiece to migrate from the first surface into the electrolytic solution at a rate; and (8) sensing the distance between the first and second surfaces through the pool of fluid, the sensor providing a real-time signal representative of the distance.
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Raulerson David A.
Schwartz Brian J.
Getz Richard D.
United Technologies Corporation
Valentine Donald R.
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