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1.发明申请公开(公告)号：US20170275197A1
公开(公告)日：2017-09-28
申请号：US15504947
申请日：2015-08-13
Applicant: CORNING INCORPORATED
Inventor： Andrew Stephen Altman , Todd Benson Fleming , Anping Liu , James Joseph Watkins
CPC classification number: C03B33/04 , C03B33/091 , Y02P40/57
Abstract: Cutting a desired final shape in a glass sheet, wherein the glass sheet is about 0.3 mm or less in thickness by applying a laser beam to the glass and continuously moving the laser relative to the glass along the cutting line. The laser is of a circular shape, and cooling fluid is applied simultaneously with the application of the laser, such that the cooling fluid at least reduces the temperature of the glass in order to propagate a fracture in the glass. The method includes controlling at least one of: (i) an energy density of the laser, (ii) a velocity of the laser relative to the glass along the cutting line, (iii) a fluid flow of the cooling fluid, and (iv) a minimum radius of curvature of the cutting line, such that a B10 edge strength of a cut edge of the glass is at least about 300 MPa.
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公开(公告)号：US20170050877A1
公开(公告)日：2017-02-23
申请号：US15120003
申请日：2015-02-17
Applicant: Corning Incorporated
Inventor： Andrew Stephen Altman , Carlton Wesley Cole , Todd Benson Fleming , Anping Liu , James Joseph Watkins
CPC classification number: C03B33/091 , B23K26/14 , B23K26/53 , B23K2103/54 , C03B33/0222 , C03B33/04 , Y02P40/57
Abstract: Methods and apparatus provide for: cutting a thin glass sheet along a curved cutting line, where the curve is divided into a plurality of line segments; applying a laser beam and continuously moving the laser beam along the cutting line; applying a cooling fluid simultaneously with the application of the laser beam in order to propagate a fracture in the glass sheet along the cutting line; and varying one or more cutting parameters as the laser beam moves from one of the plurality of line segments to a next one of the plurality of line segments, wherein the one or more cutting parameters include at least one of: (i) a power of the laser beam, (ii) a speed of the movement, (iii) a pressure of the cooling fluid, and (iv) a flow rate of the cooling fluid.
Abstract translation: 方法和装置提供：沿着弯曲切割线切割薄玻璃板，其中曲线被分成多个线段; 施加激光束并沿切割线连续移动激光束; 与施加激光束同时施加冷却流体，以沿着切割线传播玻璃板中的断裂; 以及随着所述激光束从所述多个线段之一移动到所述多个线段中的下一个线段而改变一个或多个切割参数，其中所述一个或多个切割参数包括以下中的至少一个：（i） 激光束，（ii）运动速度，（iii）冷却流体的压力，和（iv）冷却流体的流量。
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公开(公告)号：US10941070B2
公开(公告)日：2021-03-09
申请号：US15120003
申请日：2015-02-17
Applicant: Corning Incorporated
Inventor： Andrew Stephen Altman , Carlton Wesley Cole , Todd Benson Fleming , Anping Liu , James Joseph Watkins
Abstract: Methods and apparatus provide for: cutting a thin glass sheet along a curved cutting line, where the curve is divided into a plurality of line segments; applying a laser beam and continuously moving the laser beam along the cutting line; applying a cooling fluid simultaneously with the application of the laser beam in order to propagate a fracture in the glass sheet along the cutting line; and varying one or more cutting parameters as the laser beam moves from one of the plurality of line segments to a next one of the plurality of line segments, wherein the one or more cutting parameters include at least one of: (i) a power of the laser beam, (ii) a speed of the movement, (iii) a pressure of the cooling fluid, and (iv) a flow rate of the cooling fluid.
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公开(公告)号：US10144668B2
公开(公告)日：2018-12-04
申请号：US15504947
申请日：2015-08-13
Applicant: CORNING INCORPORATED
Inventor： Andrew Stephen Altman , Todd Benson Fleming , Anping Liu , James Joseph Watkins
Abstract: Methods and apparatus for cutting a glass sheet along a cutting line into a desired shape. A laser source is configured to apply a laser beam to a beam location on the cutting line of the glass sheet. A source of cooling fluid is configured to apply a cooling fluid to a cooling band on the glass sheet to reduce a temperature of the glass sheet along the cooling path while elevating the temperature of the glass sheet at the beam location with the laser beam. The source of cooling fluid is configured to apply the cooling path as a cooling ring to circumscribe the beam location on the cutting line with the cooling band circumferentially spaced from the beam location while the cooling path and the beam location move simultaneously together in order to propagate a fracture in the glass sheet along the cutting line.
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