Shaped-tube electrolytic machining process

Details Shaped-tube electrolytic machining process Shaped-tube electrolytic machining process

1993-01-19

1994-06-21

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412943, 20412955, 20412975, B23H 302, B23H 310, B23H 914

Patent

active

053225996

ABSTRACT:
A process of electrolytic machining holes of uniform diameter in a conductive workpiece, particularly one having a slotted lower portion. Drilling is accomplished electrochemically by providing a conductive tube, passing an electrolytic fluid through the tube to the workpiece, and passing a DC current between the tube and the workpiece through the electrolyte. The DC current causes material from the workpiece to "deplate" into the electrolyte, resulting in the formation of the hole. Hole diameter is made uniform by maintaining the supplied DC current constant, despite sudden changes in the conductivity of the electrolyte, the workpiece or both.

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patent: 4430180 (1984-02-01), Shimizu
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E. J. Weller, Nontraditional Machining Processes, pp. 109-113 (2nd ed. 1984).
G. F. Benedict, Nontraditional Manufacturing Processes, pp. 181-187 (1987).

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