Combination electrolytic polishing and abrasive super-finishing

Details Combination electrolytic polishing and abrasive super-finishing Combination electrolytic polishing and abrasive super-finishing

1999-04-23

2000-06-13

Banks, Derris Holt

Abrading

Abrading process

Combined abrading

451 28, 451 34, 451908, B24B 100

Patent

active

060742844

ABSTRACT:
An abrasive super-finishing method for workpieces, such as metallic thin-film magnetic discs, employs a polishing/texturing material having a backing, such as synthetic resin film or woven material or non-woven cloth, and a layer which can hold abrasive grains on the backing, such as flocked fibre or a porous polymer foam, on one surface of the backing. An electrolytic solution in which abrasive grains are suspended is supplied to the polishing/texturing material to conduct polishing or texturing of the workpiece surfaces. The workpiece is connected to an anode and a pressure roller or a cathode bar is connected to a cathode. A voltage is applied between the workpiece and the pressure roller or cathode bar to conduct simultaneously electrolytic polishing and abrasive polishing/texturing.

REFERENCES:
Database WPI on Questel, week 9325, London: Derwent Publications Ltd., AN 93-201550, Class LO3, JP 51-28506 A (Matsushita Elec Ind. Co., Ltd.), abstract.
Louis S. Winter, "Electro-Polishing", Metals Handbook, 9.sup.th Ed., vol. 5, American Society for Metals, 1982, pp. 303-309.
Bharat Bhushan, "Magnetic Slider/Rigid Disk Substrate Materials and Disk Texturing Techniques --Status and Future Outlook", Advances in Information Storage Systems, vol. 5, 1993, pp. 175-209.

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