公开(公告)号：US08350188B2

公开(公告)日：2013-01-08

申请号：US12602012

申请日：2008-05-23

申请人： Wolfgang Schulz ,  Dirk Petring ,  Frank Schneider ,  Markus Niessen

发明人： Wolfgang Schulz ,  Dirk Petring ,  Frank Schneider ,  Markus Niessen

IPC分类号： B23K26/38

CPC分类号： B23K26/0604 ,  B23K26/0617 ,  B23K26/38

摘要： A method for material removal to a predetermined removal depth from a workpiece employs a laser beam consisting of one or more sub-beams, each of the latter having a defined beam axis. The axis of the laser beam or the individual axes of the sub-beams are guided along a removal line at a predetermined travelling speed and the laser beam has a predetermined spatial energy flow density that defines a Poynting vector S with a value I0f (x) and a direction s, the spatial energy flow density creating a removal face with an apex formed by the leading part of the removal face in the removal direction and the face, creating a removal edge.

摘要翻译： 用于从工件去除预定去除深度的材料的方法采用由一个或多个子光束组成的激光束，后者具有限定的光束轴。 激光束的轴线或子光束的各个轴以预定行进速度沿着去除线被引导，并且激光束具有预定的空间能量流密度，其定义值为I0f（x）的坡印廷矢量S， 和方向s，空间能量流密度产生具有由去除面的引导部分沿移除方向和面部形成的顶点的移除面，产生移除边缘。

公开(公告)号：US09035217B2

公开(公告)日：2015-05-19

申请号：US12601927

申请日：2008-05-23

申请人： Dirk Petring ,  Frank Schneider ,  Wolfgang Schulz ,  Markus Niessen

发明人： Dirk Petring ,  Frank Schneider ,  Wolfgang Schulz ,  Markus Niessen

IPC分类号： B23K26/00 ,  B23K26/38 ,  B23K26/06

CPC分类号： B23K26/0617 ,  B23K26/0604 ,  B23K26/382 ,  B23K26/384 ,  B23K26/389

摘要： In a method and device for machining material, an unfocused beam of laser radiation is focused and directed at the material surface, creating an interface of laser radiation and material to be machined. The beam waist, which results from the focusing the laser radiation, is held in the region of the interface of laser radiation and material. The spacing of the beam waist from the upper or lower side of the interface in the axial direction corresponds at most to triple the value of the penetration depth of the interface into the material. The focusing is effected such that components of the laser radiation are made divergent not just in the propagation direction downstream of the beam waist but also in the beam waist itself and/or also in the propagation direction upstream of the beam waist.

摘要翻译： 在用于加工材料的方法和装置中，将未聚焦的激光辐射束聚焦并指向材料表面，产生激光辐射和待加工材料的界面。 由聚焦激光辐射产生的束腰被保持在激光辐射和材料界面的区域。 光束腰部与界面的上侧或下侧在轴向方向上的间隔对应于至多为接口材料穿透深度的三倍。 进行聚焦，使得激光辐射的部件不仅在波束腰的下游的传播方向上发散，而且在束腰本身和/或在束腰的上游的传播方向上发散。

公开(公告)号：US5373135A

公开(公告)日：1994-12-13

申请号：US679090

申请日：1989-12-21

申请人： Eckhard Beyer ,  Dirk Petring ,  Peter Abels ,  Gerd Harzinger

发明人： Eckhard Beyer ,  Dirk Petring ,  Peter Abels ,  Gerd Harzinger

IPC分类号： B23K26/00 ,  B23K26/03 ,  B23K26/04 ,  B23K26/36 ,  B23K26/38 ,  B23K26/14

CPC分类号： B23K26/032 ,  B23K26/034 ,  B23K26/364

摘要： A process for treating workpieces by means of laser radiation, particularlyor the cutting, hole burning and material removal with respect to metallic workpieces, in which the treated site of the workpiece is monitored by a radiation detector which contributes to reducing the intensity of the laser radiation when an upper limit value is reached and to increasing it when a lower limit value is reached. In order to achieve a controlled process without exceeding a critical temperature, such as the evaporation temperature, in a simple manner, the process is carried out such that, by the radiation detector, the heat radiation is measured which emanates from its treatment site, by which an upper temperature is monitored as the upper limit value of a predetermined temperature range and a lower temperature is monitored as the lower limit value of this temperature range, and in that the laser radiation, when the upper limit value is reached, is switched off and is switched on again when the lower limit value is reached.

摘要翻译： PCT No.PCT / DE89 / 00781 Sec。 371日期：1992年4月20日 102（e）日期1992年4月20日PCT 1989年12月21日PCT公布。 出版物WO90 / 07398 日期1990年7月12日。一种用于通过激光辐射处理工件的方法，特别是用于相对于金属工件的切割，孔燃烧和材料去除，其中工件的处理部位由辐射检测器监测，该辐射检测器有助于 当达到上限值时降低激光辐射的强度，并且当达到下限值时增加激光辐射的强度。 为了实现不超过临界温度（例如蒸发温度）的控制过程，以简单的方式进行处理，使得通过辐射检测器测量从其处理位置发出的热辐射，通过 将上限温度作为预定温度范围的上限值和较低温度进行监测，作为该温度范围的下限值，并且当达到上限值时激光辐射被切断 并且当达到下限值时再次接通。

公开(公告)号：US08791386B2

公开(公告)日：2014-07-29

申请号：US11666386

申请日：2005-10-11

申请人： Wolfgang Schulz ,  Reinhart Poprawe ,  Stefan Kaierle ,  Dirk Petring

发明人： Wolfgang Schulz ,  Reinhart Poprawe ,  Stefan Kaierle ,  Dirk Petring

IPC分类号： B23K26/38 ,  B23K26/14

CPC分类号： B23K26/14 ,  B23K26/0626 ,  B23K26/142 ,  B23K26/38

摘要： This invention relates to a method for cutting materials using a laser beam, which emerges from a cutting head comprising a cutting nozzle with an inner edge, and is absorbed by the cutting front. The axis of the laser beam is displaced in relation to a workpiece along a cutting line with a fixed orientation in the cutting direction of said workpiece. In this method the position (p) of the cutting head is modulated with regard to its time averaged value, or the laser power and gas pressure in the cutting head are modulated.

摘要翻译： 本发明涉及一种使用激光束切割材料的方法，该方法从包括具有内边缘的切割喷嘴的切割头出射并被切割前端吸收。 激光束的轴线沿着切割线相对于工件沿着所述工件的切割方向以固定取向位移。 在该方法中，切割头的位置（p）相对于其时间平均值被调制，或者切割头中的激光功率和气体压力被调制。

公开(公告)号：US20080210672A1

公开(公告)日：2008-09-04

申请号：US11667547

申请日：2005-09-19

申请人： Gerd Meyer ,  Dirk Petring ,  Claudia Peuker ,  Norbert Wolf

发明人： Gerd Meyer ,  Dirk Petring ,  Claudia Peuker ,  Norbert Wolf

IPC分类号： B23K26/00

CPC分类号： F16B5/08 ,  B23K26/244 ,  F16B5/02 ,  F16B5/04

摘要： An embodiment of the present invention discloses a method for connecting two or more components including overlapping surface sections via a laser beam. In the method, prior to the laser welding, the components are fixed in a positive fit to at least one of the overlapping surface sections by local cold joining, preferably via rivets or screws and are then laser welded, a laser weld seam being created in close proximity to each fixing point that has been produced by cold joining, in particular as close as possible to the rivet or screw.

摘要翻译： 本发明的实施例公开了一种用于经由激光束连接包括重叠表面部分的两个或多个部件的方法。 在该方法中，在激光焊接之前，通过局部冷连接（优选通过铆钉或螺钉）将组件以至少一个重叠的表面部分以正配合的方式固定，然后被激光焊接，然后形成激光焊缝 靠近通过冷连接产生的每个固定点，特别是尽可能靠近铆钉或螺钉。

公开(公告)号：US5578228A

公开(公告)日：1996-11-26

申请号：US379665

申请日：1995-04-03

申请人： Eckhard Beyer ,  Kai-Uwe Preissig ,  Dirk Petring ,  Dieter Bingener ,  Hans-Dieter Riehn

发明人： Eckhard Beyer ,  Kai-Uwe Preissig ,  Dirk Petring ,  Dieter Bingener ,  Hans-Dieter Riehn

IPC分类号： B23K26/073 ,  B23K26/12 ,  B23K26/144 ,  B23K26/146 ,  B23K26/38 ,  B23K26/40 ,  B23K26/14

CPC分类号： B23K26/123 ,  B23K26/073 ,  B23K26/125 ,  B23K26/144 ,  B23K26/146 ,  B23K26/38 ,  B23K26/40 ,  B23K2201/16 ,  B23K2201/18 ,  B23K2203/04 ,  B23K2203/50

摘要： The laser beam melts a plate or strip workpiece with the formation of a vapor capillary at a cutting point and the melt is driven off by a cutting gas consisting of a mixture of inert gas and hydrogen gas, the hydrogen gas making up to 25% by volume of the cutting gas. In order to maintain the vapor capillary, the cutting gas is taken to the surface of the melt at the cutting point at such a pressure and with such a pressure distribution that the temperature at the surface of the melt is kept at boiling point and the melt is continuously driven out of the cutting seam in the side away from the cutting direction of the vapor capillary. The plate or strip workpiece can be a magnetic steel sheet. An additional stream of gas, liquid, or solid particles can be used to move melt out of the cutting seam.

摘要翻译： PCT No.PCT / EP93 / 02123 Sec。 371日期：1995年4月3日 102（e）日期1995年4月3日PCT 1993年8月10日PCT公布。 出版物WO94 / 04306 日期1994年3月3日激光束在切割点处形成蒸汽毛细管而熔化板或条带工件，熔体被由惰性气体和氢气的混合物组成的切割气体驱除，制造氢气 高达25％的切割气体。 为了保持蒸气毛细管，切割气体在切割点处以这样的压力和这样的压力分布被带到熔体的表面，使得熔体表面的温度保持在沸点，熔体 在远离蒸气毛细管的切割方向的一侧连续地从切割缝中驱出。 板材或带材工件可以是电磁钢板。 可以使用额外的气体，液体或固体颗粒流将熔体移出切割缝。

公开(公告)号：US08017887B2

公开(公告)日：2011-09-13

申请号：US11667547

申请日：2005-09-19

申请人： Gerd Meyer ,  Dirk Petring ,  Claudia Peuker ,  Norbert Wolf

发明人： Gerd Meyer ,  Dirk Petring ,  Claudia Peuker ,  Norbert Wolf

IPC分类号： B23K26/28

CPC分类号： F16B5/08 ,  B23K26/244 ,  F16B5/02 ,  F16B5/04

摘要： A method for connecting two or more components including overlapping surface sections via a laser beam. In the method, prior to the laser welding, the components are fixed in a positive fit to at least one of the overlapping surface sections by local cold joining, preferably via rivets or screws and are then laser welded, a laser weld seam being created in close proximity to each fixing point that has been produced by cold joining, in particular as close as possible to the rivet or screw.

摘要翻译： 一种用于经由激光束连接包括重叠表面部分的两个或多个部件的方法。 在该方法中，在激光焊接之前，通过局部冷连接（优选通过铆钉或螺钉）将组件以至少一个重叠的表面部分以正配合的方式固定，然后被激光焊接，然后形成激光焊缝 靠近通过冷连接产生的每个固定点，特别是尽可能靠近铆钉或螺钉。

公开(公告)号：US20100176102A1

公开(公告)日：2010-07-15

申请号：US12601927

申请日：2008-05-23

申请人： Dirk Petring ,  Frank Schneider ,  Wolfgang Schulz ,  Markus Niessen

发明人： Dirk Petring ,  Frank Schneider ,  Wolfgang Schulz ,  Markus Niessen

IPC分类号： B23K26/00

CPC分类号： B23K26/0617 ,  B23K26/0604 ,  B23K26/382 ,  B23K26/384 ,  B23K26/389

摘要： A method and device for machining material uses laser radiation, in which the unfocused laser radiation is focused through a focusing optics to a smaller beam cross section. The optical axis of the focused laser radiation, referred to as beam axis, is directed at the material surface. The beam waist, which results from the focusing operation, of the focused laser radiation is held in the region of the interface, which forms of laser radiation and material. The laser radiation is partially absorbed on the interface such that due to induced material removal or induced material displacement the interface and thus also the laser radiation penetrate into the material. The spacing of the beam waist from the upper or lower side of the interface in the axial direction corresponds at most to triple the value of the penetration depth of the interface into the material. The focusing operation is effected such that components of the laser radiation are made divergent not just in the propagation direction downstream of the beam waist but also in the beam waist and/or also in the propagation direction upstream of the beam waist and are thus directed away from the beam axis. These components and angles of divergence are larger than those of the effects of imaging errors, which are inadvertently produced using standard optics and are tolerated.

摘要翻译： 用于加工材料的方法和装置使用激光辐射，其中未聚焦的激光辐射通过聚焦光学器件聚焦到较小的束横截面。 被称为束轴的聚焦激光辐射的光轴指向材料表面。 由聚焦操作产生的聚焦激光辐射的束腰被保持在形成激光辐射和材料的界面的区域中。 激光辐射被部分地吸收在界面上，使得由于感应材料去除或引起的材料位移界面，因此激光辐射也渗透到材料中。 光束腰部与界面的上侧或下侧在轴向方向上的间隔对应于至多为接口材料穿透深度的三倍。 进行聚焦操作，使得激光辐射的部件不仅在波束腰的下游的传播方向上发散，而且在束腰和/或在波束腰的上游的传播方向上发散，并且因此被引导 从光束轴。 这些分量和发散角大于成像误差的影响，这些误差是使用标准光学器件无意中产生的并且是容忍的。

公开(公告)号：US20050167403A1

公开(公告)日：2005-08-04

申请号：US10511296

申请日：2003-04-17

申请人： Dirk Petring

发明人： Dirk Petring

IPC分类号： B23K9/095 ,  B23K10/00 ,  B23K10/02 ,  B23K26/06 ,  B23K26/14 ,  B23K28/02 ,  B23K26/00

CPC分类号： B23K26/0613 ,  B23K9/095 ,  B23K10/006 ,  B23K10/02 ,  B23K26/0604 ,  B23K26/348 ,  B23K28/02

摘要： In a method for machining workpieces by combining a first machining tool with at least one second machining tool, wherein at least one of the first and second machining tools employs laser radiation, the first machining tool is operated with a first pulse modulation and the at least one second machining tool is operated with a second pulse modulation. The first and second pulse modulations are synchronized. Same pulse frequencies can be used for the first and second pulse modulations, or, in the alternative, pulse frequencies are used that are an integral multiple relative to one another, wherein the first and second pulse modulations are in a fixed or variably controlled phase relationship relative to one another.

摘要翻译： 在通过将第一加工工具与至少一个第二加工工具组合的工件加工方法中，其中所述第一和第二加工工具中的至少一个采用激光辐射，所述第一加工工具以第一脉冲调制操作，并且至少 第二个加工工具用第二个脉冲调制工作。 第一和第二脉冲调制是同步的。 相同的脉冲频率可用于第一和第二脉冲调制，或者替代地，使用相对于彼此成整数的脉冲频率，其中第一和第二脉冲调制处于固定或可变控制的相位关系 相对于彼此。

公开(公告)号：US06365870B1

公开(公告)日：2002-04-02

申请号：US09529468

申请日：2000-04-07

申请人： Dirk Petring ,  Hans-Georg Treusch ,  Reinhart Poprawe ,  Peter Loosen

发明人： Dirk Petring ,  Hans-Georg Treusch ,  Reinhart Poprawe ,  Peter Loosen

IPC分类号： B23K2638

CPC分类号： B23K26/073 ,  B23K26/035 ,  B23K26/08 ,  B23K26/0876

摘要： A method for processing moving workpieces with laser radiation that is focused on a to-be-processed workpiece surface by means of a laser beam that is moved but not relative to the workpiece. The laser beam is focused in a line-like manner and its beam spot corresponds practically exclusively and with full a real coverage to the work piece surface to be processed.

摘要翻译： 一种用激光辐射处理移动的工件的方法，其通过被移动但不相对于工件的激光束聚焦在被加工的工件表面上。 激光束以线状方式聚焦，其光斑实际上完全对应于完全实际的覆盖到待处理的工件表面。