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1.发明公开
公开(公告)号：EP1242322A2
公开(公告)日：2002-09-25
申请号：EP00981346.0
申请日：2000-12-07
发明人： HAUER, Dirk , HOETZEL, Berndt
IPC分类号： C03B33/09
CPC分类号： C03B33/091 , C03B33/04 , Y10T225/12 , Y10T225/304
摘要： A laser beam having a line-shaped beam profile with a following cooling spot in order to increase thermomechanic tension which is moved along a separating line having predefined contours is known in prior art. In order to cut out a given contour using simple mean, (free-shape cut) the method according to the invention relates to a line-shaped burn spot (1) generated on a work piece. Said spot is of significantly increased intensity at both ends (1a, 1b). Said spot is moved along the cut line (2) in such a way that both said ends lie on the cut line (2) and the length (S) thereof depends on the curvature of the contour of the cut line (2).
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2.发明公开
公开(公告)号：EP1313673A1
公开(公告)日：2003-05-28
申请号：EP01960522.9
申请日：2001-07-20
CPC分类号： C03B33/091 , B65G2249/04 , C03B33/03 , C03B33/102 , Y10T225/12 , Y10T225/304
摘要： The cutting of these rectangular plates with predetermined edge lengths is typically effected by means of a laser, which is displaced along the cutting lines, in conjunction with a trailing cooling spot for inducing a thermomechanical stress that is greater than the breaking strength of the glass, and by means of a mechanically induced initial crack at the beginning of the cutting line. When the flat glass plate (1) is in an initial position, a number of parallel first cutting lines (1-3) are made. Afterwards, the flat glass plate (1) that is cut up in such a manner is rotated 90°, and the partial plates (2-5) are moved apart by virtue of the fact that a displaceable table segment of a cutting table is assigned to each partial plate. In this position, several parallel second cuts (4-9) are then made that are perpendicular to the first cuts, whereby, on each partial plate, an initial crack is induced on the leading edge. This enables the cutting up process to be effected in a working action with exact optimal placement of the initial crack on the plate edges.
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3.发明公开VERFAREN UND VORRICHTUNG ZUM DURCHTRENNEN VON FLACHEN WERKSTÜCKEN AUS SPRÖDBRÜCHIGEM MATERIAL 有权VERFAREN和装置扁切割工件的脆性材料
公开(公告)号：EP1242210A2
公开(公告)日：2002-09-25
申请号：EP00990694.2
申请日：2000-12-09
发明人： HAUER, Dirk , HOETZEL, Berndt
IPC分类号： B23K26/00
CPC分类号： C03B33/091 , B23K26/073 , B23K26/0738 , B23K26/08 , B23K26/082 , B23K26/364 , B23K26/40 , B23K2203/50 , C03B33/04 , Y10T225/12 , Y10T225/304
摘要： In a conventional method, a laser beam, with a linear beam profile and a following cool-spot to increase the thermomechanical stress, is moved along a separating line of predetermined shape. According to the invention, in order to be able to separate any shape (free-form cutting), the method is carried out, whereby a linear focal point is generated, on the workpiece, by means of scanning the laser beam and, during each scanning movement, tracking data for the separation line (2) is generated, such that the linear focal point is given a curvature corresponding to the curvature of the shape of the separation line, by adjusting the scan amplitude.
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4.发明授权
公开(公告)号：EP1313673B1
公开(公告)日：2004-04-21
申请号：EP01960522.9
申请日：2001-07-20
CPC分类号： C03B33/091 , B65G2249/04 , C03B33/03 , C03B33/102 , Y10T225/12 , Y10T225/304
摘要： The cutting of these rectangular plates with predetermined edge lengths is typically effected by means of a laser, which is displaced along the cutting lines, in conjunction with a trailing cooling spot for inducing a thermomechanical stress that is greater than the breaking strength of the glass, and by means of a mechanically induced initial crack at the beginning of the cutting line. When the flat glass plate (1) is in an initial position, a number of parallel first cutting lines (1-3) are made. Afterwards, the flat glass plate (1) that is cut up in such a manner is rotated 90 DEG , and the partial plates (2-5) are moved apart by virtue of the fact that a displaceable table segment of a cutting table is assigned to each partial plate. In this position, several parallel second cuts (4-9) are then made that are perpendicular to the first cuts, whereby, on each partial plate, an initial crack is induced on the leading edge. This enables the cutting up process to be effected in a working action with exact optimal placement of the initial crack on the plate edges.
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5.发明授权
公开(公告)号：EP1242322B1
公开(公告)日：2003-07-23
申请号：EP00981346.0
申请日：2000-12-07
发明人： HAUER, Dirk , HOETZEL, Berndt
IPC分类号： C03B33/09
CPC分类号： C03B33/091 , C03B33/04 , Y10T225/12 , Y10T225/304
摘要： A laser beam having a line-shaped beam profile with a following cooling spot in order to increase thermomechanic tension which is moved along a separating line having predefined contours is known in prior art. In order to cut out a given contour using simple mean, (free-shape cut) the method according to the invention relates to a line-shaped burn spot (1) generated on a work piece. Said spot is of significantly increased intensity at both ends (1a, 1b). Said spot is moved along the cut line (2) in such a way that both said ends lie on the cut line (2) and the length (S) thereof depends on the curvature of the contour of the cut line (2).
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