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1.发明公开公开(公告)号：US20240239701A1
公开(公告)日：2024-07-18
申请号：US18621749
申请日：2024-03-29
申请人： SCHOTT AG
IPC分类号： C03B33/02 , B23K26/53 , B23K103/00
CPC分类号： C03B33/0222 , B23K26/53 , B23K2103/54
摘要： A component includes a glass or glass ceramic having a thickness and a plurality of predamages. Each predamage of the plurality of predamages has a longitudinal axis and passes continuously through the thickness of the glass or the glass ceramic. The component also includes a material compaction of the glass or glass ceramic that is at least 1% relative to an actual material density in a radius of 3 μm about the longitudinal axis of each predamage so that the glass or the glass ceramic has a relative weight loss per predamage that is less than 10%.
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2.发明申请公开(公告)号：US20180370840A1
公开(公告)日：2018-12-27
申请号：US16104510
申请日：2018-08-17
申请人： SCHOTT AG
IPC分类号： C03B33/02 , B23K26/00 , B23K26/53 , B23K26/0622 , B24D3/00
摘要： A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.
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公开(公告)号：US20230020260A1
公开(公告)日：2023-01-19
申请号：US17930007
申请日：2022-09-06
申请人： SCHOTT AG
发明人： Volker OHMSTEDE , Michael HAHN , Günter WEIDMANN , Hildegard RÖMER , Peter FRANKE , Frank-Thomas LENTES , Wolfgang SCHMIDBAUER , Rainer Erwin EICHHOLZ
摘要： A method and an apparatus for melting down glass are provided. The method includes using microwave radiation for at least part of the energy supply for melting for transforming a batch into a glass melt. The microwave radiation captures at least part of the transition between batch and primary melt. The method and apparatus include melting assembly with a melting tank which has walls within which both the batch for melting and the molten batch can be accommodated as a glass melt, where above the batch and above the glass melt there is at least one microwave-emitting source disposed.
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公开(公告)号：US20200039005A1
公开(公告)日：2020-02-06
申请号：US16600848
申请日：2019-10-14
申请人： SCHOTT AG
IPC分类号： B23K26/38 , B23K26/00 , B23K26/0622
摘要： The present disclosure provides a device and a method for laser-based separation of a transparent, brittle workpiece, comprising a laser that emits a laser beam having an intensity (IL) along an optical axis (P), and an optical device. The optical device has at least one one-piece double axicon. The double axicon has an entrance surface and the optical device has an exit surface. The entrance surface is such that in the double axicon, a ring beam is formed. The intensity (IL) in the double axicon is lower than the threshold intensity (IS) of the material of the double axicon. The exit surface is such that a line focus having a maximum intensity (Imax) and a length (LT) is generated in the direction of the laser beam behind the exit.
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5.发明申请公开(公告)号：US20200376603A1
公开(公告)日：2020-12-03
申请号：US16994724
申请日：2020-08-17
申请人： SCHOTT AG
发明人： Andreas ORTNER , Clemens KUNISCH , Frank-Thomas LENTES , Jens Ulrich THOMAS , Kurt NATTERMANN , Michael KLUGE
IPC分类号： B23K26/359 , B23K26/0622 , B23K26/067
摘要： A method for preparing a workpiece for separation is provided that includes providing a workpiece that is transparent for light of a pulsed laser beam, splitting the laser beam into two partial beams using an optical system, directing both partial beams onto the workpiece, and moving the workpiece and the partial beams relative to one another. The partial beams are directed onto the workpiece incident at different angles to the normal of the irradiated surface and superimposed inside the workpiece such that the partial beams interfere with one another to form a sequence of intensity maxima inside the workpiece. The intensity at the intensity maxima is sufficiently high to modify the material of the workpiece so that a chain-like periodic pattern of material modifications is formed along a path defining a separation line.
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公开(公告)号：US20190322564A1
公开(公告)日：2019-10-24
申请号：US16459914
申请日：2019-07-02
申请人： SCHOTT AG
发明人： Fabian WAGNER , Volker PLAPPER , Andreas ORTNER , Simon SCHMITT , Frank-Thomas LENTES , Albrecht SEIDL , Antal MAKACS , Patrick BARTHOLOME
摘要： 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 (σB) for separating the substrate along the separation line is smaller than a first reference stress (σR1) of the substrate and such that an edge strength σK of the separation edge obtained after separation is greater than a second reference stress (σR2) of the substrate; and separating the substrate after introducing the defects by applying a stress along the separation line.
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7.发明申请公开(公告)号：US20180221991A1
公开(公告)日：2018-08-09
申请号：US15945992
申请日：2018-04-05
申请人： SCHOTT AG
IPC分类号： B23K26/53 , B23K26/08 , B23K26/0622 , B23K26/042 , B23K26/046 , B23K26/351
CPC分类号： B23K26/53 , B23K26/042 , B23K26/046 , B23K26/0624 , B23K26/0884 , B23K26/351 , B23K2101/40
摘要： A method for filamentation of a dielectric workpiece has a workpiece with a thickness between 0.5 and 20 mm is provided. The workpiece has boundary surfaces delimiting the workpiece. The thickness of the workpiece varies spatially and/or at least one of the boundary surfaces delimiting the workpiece has at least one curvature with a radius of curvature between 0.1 μm and 10 m. The dielectric workpiece can have a specially formed edge.
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公开(公告)号：US20240116797A1
公开(公告)日：2024-04-11
申请号：US18541948
申请日：2023-12-15
申请人： SCHOTT AG
IPC分类号： C03B33/02 , B23K26/0622 , B23K26/53 , B32B17/00
CPC分类号： C03B33/0222 , B23K26/0624 , B23K26/53 , B32B17/00 , B23K2103/54
摘要： A method includes producing filamentary damages in a volume of a glass or glass ceramic element that are adjacently aligned along a separation line and that extend obliquely relative to a surface of the glass or glass ceramic element, and separating a portion from the glass or glass ceramic element along the separation line. The step of producing the filamentary damages includes directing laser pulses of an ultrashort pulse laser obliquely on the surface so that the laser pulses have a light propagation direction that extends obliquely relative to the surface and so that the filamentary damages resulting from the laser pulses have the longitudinal extension that extends obliquely relative to the surface, generating a plasma within the volume with the laser pulses, and displacing the laser pulses at points of incidence over the surface along the separation line.
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公开(公告)号：US20220267189A1
公开(公告)日：2022-08-25
申请号：US17738530
申请日：2022-05-06
申请人： SCHOTT AG
发明人： Fabian WAGNER , Volker PLAPPER , Andreas ORTNER , Simon SCHMITT , Frank-Thomas LENTES , Albrecht SEIDL , Antal MAKACS , Patrick BARTHOLOME
摘要： 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 (σB) for separating the substrate along the separation line is smaller than a first reference stress (σR1) of the substrate and such that an edge strength σK of the separation edge obtained after separation is greater than a second reference stress (σR2) of the substrate; and separating the substrate after introducing the defects by applying a stress along the separation line.
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10.发明申请公开(公告)号：US20200087192A1
公开(公告)日：2020-03-19
申请号：US16688680
申请日：2019-11-19
申请人： SCHOTT AG
摘要： A component of glass or glass ceramic having predamages arranged along at least one predetermined dividing line is provided. The dividing line has a row of predamages lying one behind the other. The predamages pass continuously through the glass or the glass ceramic with at least 90% of the predamages being cylindrically symmetrical. The glass or the glass ceramic has a material compaction of at least 1% relative to an actual material density in a radius of 3 μm about a longitudinal axis of respective pre-damaged points. The relative weight loss per pre-damaged point is less than 10% and the component has a thickness of at least 3.5 mm.
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