METHOD FOR PRODUCING POLISHED-ARTICLE
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United States of America Patent
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app pub date -
May 27, 2015
filing date -
Oct 2, 2013
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Abstract
A grinding apparatus 10 includes a controller 11 for controlling the entire apparatus, a grinding motor 14, a base metal 15 to be rotated by the grinding motor 14, and a grinding wheel 16 fixed to the base metal 15. In a grinding step, the grinding apparatus 10 is used and a surface 19 of an object to be polished 18 is ground with the grinding wheel 16 rotating at a peripheral speed of 10 m/s or less. In the grinding step, the surface 19 of the object to be polished 18 is preferably ground with the grinding wheel 16 rotating at a peripheral speed of 0.5 m/s or more. In the grinding step, a surface of alumina, sapphire, silicon carbide, or gallium nitride is ground as the object to be polished.
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