Method for controlling electrochemical drilling

Details Method for controlling electrochemical drilling Method for controlling electrochemical drilling

1998-08-24

2000-08-15

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

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

205640, 205645, 205654, 205665, B23H 300

Patent

active

061030945

ABSTRACT:
In the electrochemical drilling of a hole completely through a workpiece, the present invention proposes operating the power supply in a current regulating mode. Initially, a hollow cathode is positioned adjacent to a workpiece in which one or more holes are to be drilled. An electrolyte is flowed through the cathode and against the workpiece. A constant electrical current is applied between the cathode and the workpiece across the electrolyte. Then the cathode is advanced at a constant rate toward the workpiece for the drilling of the hole(s), while maintaining the electrolyte flow and current substantially constant.

REFERENCES:
patent: 3403084 (1968-09-01), Andrews
patent: 3849271 (1974-11-01), Joslin
patent: 4004992 (1977-01-01), Tyler et al.
patent: 4194954 (1980-03-01), Faktor et al.
patent: 5322599 (1994-06-01), Peters

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