Method for mirror surface grinding and grinding wheel therefore
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United States of America Patent
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Sep 5, 2000
Issued Date -
N/A
app pub date -
Nov 1, 1996
filing date -
Jun 19, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and a method for mirror surface grinding which enables high quality, stable ELID grinding; and a grinding wheel for electrolytic dressing. The apparatus comprises a grinding wheel 3 having a contact surface 2 for contacting a workpiece 1, an electrode 4 facing the surface 2, nozzles 5 for supplying conductive fluid between the grinding wheel 3 and the electrode 4, and a power source 6 and feeder 7 for applying a voltage between the grinding wheel and the electrode 4. The bond material, which is selected from among iron, ferrous metal, cobalt, nickel and combinations of two or more thereof, along with grains and sintering aid are molded together and sintered to obtain the conductive grinding wheel. Next, a conductive water-soluble grinding fluid containing an alkanolamine and anions is supplied between the grinding wheel and the electrode, and a pulse wave voltage is applied between the grinding wheel and the electrode to dress the grinding wheel electrolytically during grinding.
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