Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1977-05-19
1979-02-20
Mack, John H.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
20412946, 2041297, 204224R, 204224M, C25F 316, B23P 110
Patent
active
041405986
ABSTRACT:
The present invention discloses mirror finishing comprising, forming an electrode tool provided with an electrode and abrasive matter, connecting the tool electrode and a workpiece to the cathode and to the anode of a direct current power supply or pulse power supply respectively, supplying an electrolyte to a gap between the electrode tool and the workpiece, sliding while pressing the electrode tool to the surface of the workpiece, and removing the anodic passive films produced on the convexed portions of the surface by electrolysis, by the polishing action of the abrasive matter. In addition, the tool electrolyzes preferentially the convexed portions of the surface to be polished, whereby the electrolytic operation is combined with abrasive polishing by abrasive matter so as to finish the surface to a mirror polished surface.
REFERENCES:
patent: 2965556 (1960-12-01), Damgaard
patent: 3442784 (1969-05-01), Wieck
patent: 3448023 (1969-06-01), Bell
patent: 3474013 (1969-10-01), Inoue
patent: 3658682 (1972-04-01), Fulkerson et al.
patent: 4013526 (1977-03-01), Inoue
Honda Shoichi
Kimoto Yasuo
Tamiya Katsunori
Hitachi Shipbuilding & Engineering Co. Ltd.
Mack John H.
Valentine D. R.
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