Grinding wheel for shaping flat glass
AssigneeSaint-Gobain Glass France
InventorsDominique Bureloux, Thierry Dumenil, Sebastien Wery, Adeline Girod, John Tunstall
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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.
Claims16
A grinding wheel for shaping glass, the grinding wheel comprising:
- at least one abrasive portion comprising at least one metallic binder and diamonds distributed in the binder,
- wherein the binder has a Rockwell B hardness of between 95 and 105 and is tungsten-based, and
- wherein 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.
Dependencies are inferred from the claim text.