Electrode generating hydro-dynamic pressure in combination with grinding wheel
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United States of America Patent
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Aug 29, 2000
Grant Date -
N/A
app pub date -
Dec 2, 1998
filing date -
Dec 2, 1997
priority date (Note) -
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Abstract
There is disclosed an electrode 10 generating hydro-dynamic pressure for electrolytic dressing grinding. The electrode has a plurality of narrow portions 11 having constant gaps from a processed surface 1a of a grinding wheel 1, and a plurality of concave portions 12 each disposed between the narrow portions and having a gap wider than the narrow portion. A section of flow path (gap) formed between the grinding wheel 1 and the electrode 10 becomes concave/convex along a moving direction of the grinding wheel 1. When the liquid repeatedly flows through the concave/convex gap, dynamic and static pressures generated in the gap largely fluctuate. By the fluctuation, the adhesion of metal deposits to the narrow portions 11 is reduced, and the concave portions 12 form pockets, so that the electrolytic liquid can be stably supplied and the inclusion of air can be reduced.
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