GRINDING WHEEL
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United States of America Patent
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Issued Date -
Apr 2, 2009
app pub date -
Jul 14, 2008
filing date -
Sep 28, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a grinding wheel comprising a disc-like core member and a ring-shape grinding wheel layer wherein superabrasive grains selected from cubic boron nitride particles and diamond particles are contained together with aggregates in a bonding material, the aggregates are made of porous ceramics particles and have an average particle size which is in a range of 70% to 150% relative to the average particle size of the superabrasive grains, and bridges made of the bonding material are formed between the aggregates adjoining to one another or between the aggregates and the superabrasive grains adjoining to the aggregates.
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