Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating contains embedded solid material
Patent
1997-06-25
1999-11-23
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating contains embedded solid material
205222, 205223, C25D 1500
Patent
active
059894059
ABSTRACT:
A dresser includes a super-abrasive fixed by electroplating on a working face which is disposed perpendicular to the axis of rotation of the dresser, the height of protrusion of particles of the super-abrasive is 5 to 30% of an average diameter of the particles, and a process for producing such a dresser includes temporarily fixing the super-abrasive in an amount to form a single layer to a base metal by electroplating, removing loose stones in the temporarily fixed super-abrasive by a grinder or shaking, electroplating a surface having the temporarily fixed super-abrasive with a metal until thickness of the plating metal reaches height of the most protruded part of the super-abrasive or until particles of the super-abrasive are completely buried in the plating metal, and working the electroplated surface for abrasive protrusion to expose most protruded parts of the super-abrasive resulting in a high accuracy dresser which enables dressing of a polishing pad in a short time and eliminates the releasing of particles of the super-abrasive with excellent flatness to the polishing pad.
REFERENCES:
patent: 3957593 (1976-05-01), Haack
patent: 4381227 (1983-04-01), Narcus
patent: 5389228 (1995-02-01), Long et al.
Kakui Kenji
Murata Yasunori
Asahi Diamond Industrial Co. Ltd.
Gorgos Kathryn
Leader William T.
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