A glass manufacturing system including a scoring assembly. The scoring assembly including a scoring device disposed along a first surface of a glass ribbon and a backing device disposed along a second surface of the glass ribbon directly opposite the scoring device. The scoring assembly is configured to delineate a peripheral region from a central region of the glass ribbon by forming a vertical score line along the first surface as the glass ribbon moves downward in a y-axial direction between the scoring device and the backing device.

An internal feature can be laser machined in strengthened glass sheets or panels by first laser machining a first scribe in a first surface proximate to the internal feature to be laser machined. The internal feature can be then laser machined by positioning a beam waist of a laser beam proximate to an opposite second surface by focusing the laser beam through the strengthened glass panel from the first surface. The internal feature is laser machined by repositioning the beam waist from the second surface to the first surface while removing material from a kerf surrounding the internal feature. When the laser beam waist is finally positioned proximate to the first surface material, the internal shape formed by the laser machining is easily and cleanly removed from the surrounding glass.

The present invention relates to a method for the production of at least one three-dimensional layer of solid material, in particular for usage as wafer, and/or at least one tree-dimensional solid body. The inventive method preferably comprises the following steps: Providing a work piece for removing of layers of solid material and/or the solid bodies, wherein the work piece comprises at least one exposed surface, generating defects inside the work piece, wherein the defects define at least one crack directing layer, wherein the crack directing layer describes at least one three-dimensional contour; attaching or generating a receiving layer at the exposed surface of work piece by forming a composite structure, thermal treating of the receiving layer for generating stresses inside the work piece, wherein the stresses are causing a crack propagation inside the work piece, wherein a layer of solid material or a three-dimensional solid body is separated along the crack directing layer due to the crack propagation, wherein a surface of the layer of solid material or a surface of the solid body corresponds to the three-dimensional contour of the crack directing layer.

Provided is a laser fusing method for a glass sheet, including: cutting the glass sheet (G) by irradiating the glass sheet (G) with a laser (L) from a front surface (S) side thereof along a preset cutting line (X) extending in a surface direction of the glass sheet (G); and jetting a shaping gas (A3) so as to form a flow along at least one of the front surface (S) and a back surface (B) of the glass sheet (G), the shaping gas (A3) passing through an irradiation portion (C) of the laser (L).

Provided is a laser fusing method for a glass sheet, including: cutting the glass sheet (G) by irradiating the glass sheet (G) with a laser (L) from a front surface (S) side thereof along a preset cutting line (X) extending in a surface direction of the glass sheet (G); and jetting a shaping gas (A3) so as to form a flow along at least one of the front surface (S) and a back surface (B) of the glass sheet (G), the shaping gas (A3) passing through an irradiation portion (C) of the laser (L).

A method for separating a substrate of a brittle-hard material is provided. The method includes the steps of introducing defects into the substrate at a spacing from one another along a separation line using at least one pulsed laser beam; selecting an average spacing between neighboring defects and a number of laser pulses for generating a respective defect such that a breaking stress (σ.sub.B) for separating the substrate along the separation line is smaller than a first reference stress (σ.sub.R1) of the substrate and such that an edge strength σ.sub.K of the separation edge obtained after separation is greater than a second reference stress (σ.sub.R2) of the substrate; and separating the substrate after introducing the defects by applying a stress along the separation line.

The process relates to the manufacture of a plurality of glazings of complex shape from a rectangular sheet of float glass of large dimensions. The process includes at a first station for cutting the glass sheet, scoring at least one cutting line corresponding to at least one ready-to-shape edge of the glazings; a first breaking operation; at a second cutting station, scoring at least one cutting line corresponding to at least one other ready-to-shape edge of the glazings, and a second breaking operation.

An X-ray and gamma-ray shielding glass, including the following components in weight-%: 10-35% SiO.sub.2; 60-70% PbO; 0-8% B.sub.2O.sub.3; 0-10% Al.sub.2O.sub.3; 0-10% Na.sub.2O; 0-10% K.sub.2O; 0-0.3% As.sub.2O.sub.3; 0-2% Sb.sub.2O.sub.3; 0-6% BaO; and 0.05-2% ZrO.sub.2.

An X-ray and gamma-ray shielding glass, including the following components in weight-%: 10-35% SiO.sub.2; 60-70% PbO; 0-8% B.sub.2O.sub.3; 0-10% Al.sub.2O.sub.3; 0-10% Na.sub.2O; 0-10% K.sub.2O; 0-0.3% As.sub.2O.sub.3; 0-2% Sb.sub.2O.sub.3; 0-6% BaO; and 0.05-2% ZrO.sub.2.

Methods are provided for laser processing arbitrary shapes of molded 3D thin transparent brittle parts from substrates with particular interest in substrates formed from strengthened or non-strengthened Corning Gorilla® glass (all codes). The developed laser methods can be tailored for manual separation of the parts from the panel or full laser separation by thermal stressing the desired profile. Methods can be used to form 3D surfaces with small radii of curvature. The method involves the utilization of an ultra-short pulse laser that may be optionally followed by a CO.sub.2 laser for fully automated separation.