Laser formed chamfers for glass sheets

Abstract

A sheet comprising glass is provided comprising a first surface extending in a first plane and a second surface opposite the first surface extending in a second plane parallel to the first plane. A first direction extends normal to the first and second planes, and a second direction extends perpendicularly to the first direction. The sheet comprises perforations extending between the first and second surfaces, the perforations defining a section retained within a frame of the sheet. Perforations form an internal edge with a non-linear profile having an apex. A first corner joins the edge and the first surface. A second corner joins the edge and the second surface. The edge extends further in the second direction at the apex than at the first and second corners. A compressive region is positioned along the edge and the first and second surfaces. Material is under compressive stress in the compressive region.

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