Method for grinding glass
Assignee3M Innovative Properties Company
InventorRobert G. Visser
Life of this patent
Estimating the term…
Abstract
A method of grinding a glass or other workpiece is described comprising the steps of: contacting a grinding layer of a flexible abrasive article with the surface of a glass workpiece, the grinding layer comprising abrasive grit dispersed in a bonding matrix, the matrix attached to a flexible backing; and moving the grinding layer of the flexible abrasive article and the surface of the glass workpiece relative to one another at a velocity of at least about 16.5 meters per second to provide a final surface roughness Ra less than about 0.030 micrometer.
Claims43
A method of grinding a glass workpiece comprising the steps of:
- contacting a grinding layer of a flexible abrasive article with the surface of a glass workpiece, the grinding layer comprising abrasive grit dispersed in a bonding matrix, the matrix attached to a flexible backing;
- and
- moving the grinding layer of the flexible abrasive article and the surface of the glass workpiece relative to one another at a velocity of at least about 16.5 meters per second to provide a final surface roughness Ra less than about 0.030 micrometer.
A method of grinding a glass workpiece comprising the steps of:
- contacting a grinding layer of a flexible abrasive article with the surface of a glass workpiece, the grinding layer comprising abrasive grit dispersed in a bonding matrix, the matrix attached to a flexible backing;
- and
- moving the grinding layer of the flexible abrasive article and the surface of the glass workpiece relative to one another to provide a cut rate greater than about 7 micrometers per minute and a final surface roughness Ra less than about 0.030 micrometers.
A method of grinding a glass workpiece comprising the steps:
- contacting a grinding layer of a flexible abrasive article with the surface of a glass workpiece, the grinding layer comprising abrasive grit, the grinding layer attached to a flexible backing and the abrasive grit comprising a plurality of diamond bead abrasive particles dispersed in a bonding matrix;
- and
- moving the grinding layer of the flexible abrasive article and the surface of the glass workpiece relative to one another at a velocity of at least about 16. meters per second to provide a final surface roughness Ra less than about 0.030 micrometer.
Dependencies are inferred from the claim text.