Abrasive tool having a unitary arbor
First Claim
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1. A grinding tool for shaping an edge of a glass sheet, said tool comprising:
- an arbor;
a wheel;
said arbor and said wheel being of unitary construction, and having an axis of rotation;
a recess extending along a periphery of said wheel;
a bonded abrasive disposed in said recess;
said bonded abrasive sized and shaped for being profiled, to shape an edge of a glass sheet upon rotation of said tool about the axis.
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Accused Products
Abstract
A grinding tool and method is provided for shaping an edge of sheet glass. The grinding tool includes an arbor and a wheel being of a unitary construction and including an axis of rotation. The grinding tool further includes a recess extending along a periphery of the wheel, with a bonded abrasive being disposed therein. The bonded abrasive is sized and shaped for being profiled, to shape an edge of a glass sheet upon rotation of the tool about the axis. The bonded abrasive may further be sized and shaped for being re-profiled after use. The grinding tool of this invention may provide for both improved quality and reduced cost sheet glass.
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Citations
24 Claims
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1. A grinding tool for shaping an edge of a glass sheet, said tool comprising:
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an arbor;
a wheel;
said arbor and said wheel being of unitary construction, and having an axis of rotation;
a recess extending along a periphery of said wheel;
a bonded abrasive disposed in said recess;
said bonded abrasive sized and shaped for being profiled, to shape an edge of a glass sheet upon rotation of said tool about the axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
greater than or equal to about 2 microns; and
less than or equal to about 300 microns.
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8. The grinding tool of claim 5 wherein said superabrasive grain comprises a particle size distribution ranging from:
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greater than or equal to about 20 microns; and
less than or equal to about 200 microns.
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9. The grinding tool of claim 5 wherein said bonded abrasive matrix comprises from:
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greater than or equal to about 8 volume percent superabrasive grain; and
less than or equal to about 25 volume percent superabrasive grain.
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10. The grinding tool of claim 5 wherein said superabrasive grain is disposed in a metal bond matrix.
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11. The grinding tool of claim 10 wherein said metal bond comprises a bronze alloy.
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12. The grinding tool of claim 10 wherein said metal bond comprises a bonze alloy and a material selected from the group consisting of cobalt, iron, and tungsten.
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13. The grinding tool of claim 1 wherein said bonded abrasive matrix comprises a profiled surface at the periphery thereof.
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14. The grinding tool of claim 13 wherein said profiled surface comprises a shape selected from the group consisting of U-shaped, V-shaped, and basket shaped.
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15. The grinding tool of claim 1 wherein said wheel comprises a diameter ranging from:
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greater than or equal to about 75 millimeters; and
less than or equal to about 250 millimeters.
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16. A grinding tool for shaping an edge of a glass sheet, said tool comprising:
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arbor means;
wheel means;
said arbor means and said wheel means being of unitary construction, and having an axis of rotation;
support means extending along a periphery of said wheel means;
abrasive means disposed in said support means;
said abrasive means sized and shaped for being profiled, to shape an edge of a glass sheet upon rotation of said tool about the axis.
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17. A method for shaping an edge of a glass sheet, said method comprising:
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mounting on a grinding machine, a grinding tool including;
an arbor;
a wheel;
the arbor and wheel being of unitary construction, and having an axis of rotation;
a recess extending along a periphery of the wheel;
a bonded abrasive disposed in the recess;
the bonded abrasive sized and shaped for being profiled, to shape an edge of a glass sheet upon rotation of said tool about the axis;
rotating the grinding tool about the axis; and
applying the edge of the glass sheet to the bonded abrasive. - View Dependent Claims (18, 19, 20, 21)
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22. A method for profiling a bonded abrasive in a grinding tool, said method comprising:
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providing a grinding tool including;
an arbor;
a wheel;
the arbor and wheel being of unitary construction, and having an axis of rotation;
a recess extending along a periphery of the wheel;
a bonded abrasive disposed in the recess;
the bonded abrasive sized and shaped for being profiled, to shape an edge of a glass sheet upon rotation of said tool about the axis;
machining a profile in an outer surface of the bonded abrasive. - View Dependent Claims (23, 24)
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Specification