Rapid forming of glass and ceramics
AssigneeCorning Incorporated
InventorsMichael Edward Badding, William Joseph Bouton, Christopher Lee Timmons
Life of this patent
Estimating the term…
Abstract
A method for finishing a glass or ceramic article includes applying a force to the glass or ceramic article. The force is applied to the glass or ceramic article at least when the glass or ceramic article is at a temperature that is greater than or equal to a creep temperature of the glass or ceramic article. Holding the force to the glass or ceramic article as the glass or ceramic article is cooled to a temperature that is less than the creep temperature of the glass or ceramic article.
Claims16
A method for finishing a glass or ceramic article comprising:
- applying a force to the glass or ceramic article, wherein the force is applied to the glass or ceramic article at least when the glass or ceramic article is at a temperature that is greater than or equal to a creep temperature of the glass or ceramic article, the force is applied to the glass or glass ceramic article by a vacuum chuck and drawing a vacuum through the vacuum chuck, and wherein a porous slider is positioned between the glass or ceramic article and the vacuum chuck, and the porous slider is configured so that the glass or ceramic article is in physical contact with the porous slider and the vacuum is drawn through the porous slider and the vacuum chuck;
- and
- holding the force to the glass or ceramic article as the glass or ceramic article is cooled to a temperature that is less than the creep temperature of the glass or ceramic article.
A method for forming a shaped glass or ceramic article comprising:
- positioning a glass or ceramic sheet adjacent to a forming tool;
- applying a force to the glass or ceramic sheet, wherein the force is applied to the glass or ceramic sheet at least when the glass or ceramic sheet is at a temperature that is greater than or equal to a creep temperature of the glass or ceramic sheet, the force applies a tension to the glass or ceramic article, the tension is applied along two axes, and the force draws the glass or ceramic sheet to the forming tool such that the glass or glass ceramic article is in physical contact with the forming tool;
- and
- holding the force to the glass or ceramic sheet as the glass or ceramic sheet is cooled to a temperature that is less than the creep temperature of the glass or ceramic sheet, thereby forming the shaped glass or ceramic article.
Dependencies are inferred from the claim text.