Electrolysis: processes – compositions used therein – and methods – Electrolytic erosion of a workpiece for shape or surface... – With mechanical abrasion or grinding
Patent
1999-06-02
2000-12-05
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic erosion of a workpiece for shape or surface...
With mechanical abrasion or grinding
C25F 300
Patent
active
061561878
ABSTRACT:
To provide an electrolytic integrated polishing method for the external surface of metallic tubes, wherein both dimensional precision such as roundness or the like and product yield can be improved, and aluminum alloy photosensitive drum substrates prepared thereby. A metallic tube, both ends of which are supported, is positively charged and rapidly rotated about the axis thereof. More than one grindstone are pressed with a constant pressure against the external surface of the metallic tube from opposite directions or radial directions having the rotation axis as the center of rotation. Negative pole electrodes are disposed so as to sandwich the grindstones along a circular direction to perform electrolytic integrated polishing by supplying electrolyte to the external surface of the metallic tube. High-precision mirror processing of the external surface of the metallic tube can be performed by an integrating abrasion effect for eliminating a passivation coating formed on the external surface of the metallic tube by the grindstones and intensive electrolytic elution by the electrolyte.
REFERENCES:
patent: 4294673 (1981-10-01), Kimoto et al.
patent: 5321889 (1994-06-01), Watanabe
Akagi Kazuo
Azuma Youji
Hashimoto Akira
Tomita Masafumi
Gorgos Kathryn
Nissin Unyu Kogyo Co., Ltd.
Parsons Thomas H
Safran David S.
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