Shaped-tube electrolytic polishing process

Details Shaped-tube electrolytic polishing process Shaped-tube electrolytic polishing process

1993-01-19

1994-06-14

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412943, 20412955, 20412975, C25F 316, B23H 914

Patent

active

053207211

ABSTRACT:
The present invention is directed to a shaped-tube electrolytic polishing process which involves providing a workpiece with at least one hole. The hole is polished by advancing a metal tube electrode through the hole while passing an electrolyte through the tube and into the hole and while passing electric current between the metal tube and the workpiece through the electrolyte. As a result of such polishing, reduced surface roughness is imparted to the hole. It is particularly desirable to provide the hole in the workpiece by a shaped-tube electrolytic drilling process.

REFERENCES:
patent: 3058895 (1962-10-01), Williams
patent: 3290237 (1966-12-01), Abt et al.
patent: 3336213 (1967-08-01), Auger et al.
patent: 3352770 (1967-11-01), Crawford et al.
patent: 3352958 (1967-11-01), Andrews
patent: 3427239 (1969-02-01), Abt et al.
patent: 3793169 (1974-02-01), Joslin
patent: 3801489 (1974-04-01), Samson
patent: 3803015 (1974-04-01), Andrews
patent: 4088557 (1978-05-01), Andrews
patent: 4687563 (1987-08-01), Hayes
Machining Data Book, vol. 2, pp. 11-71 to 11-75 (3rd ed. 1980).
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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