Grinding wheel for shaping flat glass
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United States of America Patent
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May 16, 2017
Grant Date -
Oct 8, 2015
app pub date -
Aug 14, 2012
filing date -
Sep 9, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A grinding wheel is suited for shaping glass, notably glass that is less than or equal to 4 mm thick. This grinding wheel has at least one abrasive portion formed of at least one metal binder and of diamonds distributed in the binder. The binder has a Rockwell B hardness of between 95 and 105 and is tungsten-based. The diamonds have a size of between 75 and 95 μm and a concentration of between 2.2 ct/cm3 and 2.64 ct/cm3. Glass, in particular for shaping motor-vehicle glazing units, can be shaped with this grinding wheel, making it possible to achieve travel speeds greater than or equal to 30 m/min.
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