公开(公告)号：US20050178751A1

公开(公告)日：2005-08-18

申请号：US10996774

申请日：2004-11-24

申请人： Thomas Adelmann ,  Wolfgang Becker ,  Markus Beck ,  Daniel Zauner

发明人： Thomas Adelmann ,  Wolfgang Becker ,  Markus Beck ,  Daniel Zauner

IPC分类号： B23K26/20 ,  B23K26/00 ,  B23K26/08 ,  B23K26/24 ,  B23K26/32 ,  B23K103/04 ,  G01J5/00 ,  G01J5/60

CPC分类号： G01J5/60 ,  B23K26/24 ,  B23K26/32 ,  B23K2103/50 ,  G01J5/0003

摘要： When laser beam welding two or more work pieces, the weld seam is usually visible on the work piece that is farthest from the laser beam, on the side of this work piece away from the laser beam. If this side is in an exposed area, then it must be reworked, which is expensive. The task of the present invention therefore consists of providing a method and a device for laser beam welding, with which a laser-welded seam can be formed without being so noticeable. The task is solved by determining the critical energy input per area unit and time unit into the work piece to be welded, above which an appearance of the welded seam to a degree exceeding a predetermined level will occur on the side away from the laser beam of the work piece that is farthest removed from the laser beam, and that the laser beam is controlled or regulated in such a way that the critical energy input per area unit and time unit is not exceeded.

摘要翻译： 当激光束焊接两个或更多个工件时，通常在距离激光束最远的工件上，远离激光束的工件上看到焊缝。 如果这一面在暴露的区域，那么它必须重新加工，这是昂贵的。 因此，本发明的任务包括提供用于激光束焊接的方法和装置，通过该方法和装置可以形成激光焊接接缝，而不会非常明显。 通过确定要焊接的工件中的每单位面积单位和时间单位的临界能量输入来解决这个任务，其中超过预定水平的焊缝的外观将发生在远离激光束的一侧 距离激光束最远的工件，并且以不超过每单位面积单位和时间单位的临界能量输入的方式来控制或调节激光束。

公开(公告)号：US07091444B2

公开(公告)日：2006-08-15

申请号：US10790387

申请日：2004-03-01

申请人： Wolfgang Becker ,  Markus Beck ,  Klaus Goth ,  Mike Paelmer ,  Claus-Dieter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Markus Beck ,  Klaus Goth ,  Mike Paelmer ,  Claus-Dieter Reiniger ,  Daniel Zauner

IPC分类号： B23K26/24

CPC分类号： B23K26/24

摘要： During laser beam welding a so-called end crater forms at the end of the weld seam. The end crater is formed by the volume shrinkage of the solidifying melt after the laser beam reaches the seam end and is switched off or repositioned. The end crater acts as a geometric notch and decreases the mechanical characteristics, in particular the operational stability, of the weld seam so that holes or tears in the area of the end crater can occur. The task of the present invention is thus comprised of providing a process for reducing end crater formation. The task is solved in that towards the seam end the focus of the laser beam is distanced from the surface to be welded and/or a transverse movement of the beam occurs.

摘要翻译： 在激光束焊接期间，在焊缝的末端形成所谓的端部火山口。 端部火山口由激光束到达接缝端部之后的凝固熔体的体积收缩而形成，并且被切断或重新定位。 端部火山口用作几何缺口，并且减小焊缝的机械特性，特别是操作稳定性，使得可能发生端部火山口区域中的孔或眼泪。 因此，本发明的任务包括提供减少端部火山口形成的方法。 解决的问题是，对于接缝端，激光束的焦点远离待焊接的表面和/或发生光束的横向移动。

公开(公告)号：US20060144826A1

公开(公告)日：2006-07-06

申请号：US10790388

申请日：2004-03-01

申请人： Wolfgang Becker ,  Markus Beck ,  Klaus Goth ,  Mike Paelmer ,  Claus-Dieter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Markus Beck ,  Klaus Goth ,  Mike Paelmer ,  Claus-Dieter Reiniger ,  Daniel Zauner

IPC分类号： B23K26/20

CPC分类号： B29C65/16 ,  B23K26/32 ,  B23K2101/001 ,  B23K2101/34 ,  B23K2103/08 ,  B23K2103/50 ,  B29C66/91645 ,  B29C66/93441 ,  B29C66/939

摘要： With many coated plates, in particular zinc (galvanized) and organic coated sheet metal as are employed in the automobile industry, the coating material has a significantly lower boiling point than the melting point of the sheet metal material. Therefore in the case of laser welding of this type of sheet metal with zero gap in the overlap abutment area to a explosion like vaporization of coating material, which take along or entrain molten sheet metal material and strongly damage the quality of the joint. For improving the connection it has already been proposed that no gap be provided between the sheets, but rather these are positioned directly over each other and then first by means of first laser beam to warm until vaporization of the coating and subsequently to weld the uncoated sheets by means of a second laser beam. The disadvantage therein is above all the elaborate apparatus set up or complexity for the two required optical systems. The task of the present invention is thus comprised therein, to reduce the apparatus complexity and at the same time to at least maintain the work quality, preferably to improve it. The task is solved by a process in which by means of a signal laser beam first all plates can be uncoated and thereafter the plates are welded along the uncoated area with the same laser beam.

摘要翻译： 对于汽车工业中使用的许多涂覆板，特别是锌（镀锌）和有机涂层金属板，涂层材料的沸点明显低于金属板材的熔点。 因此，在重叠对接区域的这种类型的金属片的激光焊接激光焊接时，会发生像涂层材料的蒸发一样的爆炸，这种爆炸伴随或夹带熔融的金属板材料并严重损坏接头的质量。 为了改善连接，已经提出在片材之间不设置间隙，而是直接位于彼此之间，然后首先通过第一激光束加热直到涂层蒸发，然后焊接未涂覆的片材 借助于第二激光束。 其中的缺点首先是两个所需的光学系统的复杂设备设置或复杂性。 因此，本发明的任务包括在内，以减少设备的复杂性，并同时至少保持工作质量，优选地改进它。 这个任务是通过一个过程来解决的，其中通过信号激光束首先所有的板可以是未涂覆的，然后用相同的激光束沿着未涂覆的区域焊接板。

公开(公告)号：US20050266264A1

公开(公告)日：2005-12-01

申请号：US11140036

申请日：2005-05-27

申请人： Wolfgang Becker ,  Alfred Fuchs ,  Klaus Goth ,  Markus Knoeller ,  Dirk Lindenau ,  Claus-Dieter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Alfred Fuchs ,  Klaus Goth ,  Markus Knoeller ,  Dirk Lindenau ,  Claus-Dieter Reiniger ,  Daniel Zauner

IPC分类号： C25D13/06 ,  B05D1/00 ,  B05D7/14 ,  B23K26/00 ,  B32B15/08 ,  C25D13/00

CPC分类号： C25D13/12 ,  Y10T428/12569

摘要： In the manufacture of automobile body parts the application of anti-corrosion base coating by means of cataphoretic painting (KTL) is well known. However a gap occurs in particular in the contact areas of the components joined to each other, into which the cataphoretic paint can penetrate only incompletely or possibly not at all. Thus, this type of gap is conventionally sealed following cataphoretic painting, in order to ensure corrosion protection for the entire assembly. The present invention makes it possible to dispense with the sealing in the production of an assembly of joined conductive components and nevertheless to ensure a sufficient corrosion protection. This is achieved by introducing topographic changes in the components projecting from their surface in the known contact areas and then joining these components such that they are spaced apart by the projecting topographic changes in such a manner that during cataphoretic painting the paint wets the entire surface of the assembly.

摘要翻译： 在制造汽车车身部件时，通过喷漆（KTL）的防腐底漆的应用是众所周知的。 然而，特别是在彼此连接的部件的接触区域中发生间隙，其中阴极漆可以仅不完全地穿透到其中，或者完全不能穿透。 因此，这种类型的间隙通常在喷漆之后被密封，以便确保整个组件的防腐蚀。 本发明使得可以在制造接合的导电部件的组件中省去密封，并且仍然确保足够的防腐蚀性。 这是通过在已知接触区域中从其表面突出的部件引入地形变化，然后将这些部件连接成使得它们通过突出的地形变化间隔开的方式实现的，使得在喷漆期间，涂料润湿整个表面 大会。

公开(公告)号：US20070272665A1

公开(公告)日：2007-11-29

申请号：US10588356

申请日：2005-01-27

申请人： Wolfgang Becker ,  Jens Buhler ,  Klaus Goth ,  Mike Palmer ,  Claus-Dieter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Jens Buhler ,  Klaus Goth ,  Mike Palmer ,  Claus-Dieter Reiniger ,  Daniel Zauner

IPC分类号： B23K26/24

CPC分类号： B23K26/244 ,  B23K26/32 ,  B23K26/60 ,  B23K2101/185 ,  B23K2101/34 ,  B23K2103/08 ,  B23K2103/50

摘要： In many cases, the coating material of coated sheet metal has a significantly lower boiling point than the sheet metal material. Thus, an explosive vaporization of coating material can occur when sheet metal of this type is joined by welding, negatively affecting the quality of the connection. To improve the connection quality, narrow gaps are created by means of spacers, allowing the vaporized coating material to escape through said gaps. The spacers are created e.g. by the laser radiation of the sheet metal. The aim of the invention is to reduce the variations in distance between the sheet metal sheets by the appropriate shaping of the spacers. This is achieved by a method, in which the laser beam executes a movement comprising transverse and longitudinal components through and/or around the center of its processing surface. This creates a topographical modification with a spherical form, i.e. with an apex radius that is greater than the height of said topographical modification.

摘要翻译： 在许多情况下，涂覆的金属板的涂层材料的沸点比钣金材料低得多。 因此，当这种类型的金属板通过焊接接合时，可能会发生涂层材料的爆炸性蒸发，从而不利地影响连接的质量。 为了提高连接质量，通过间隔物产生窄间隙，允许汽化的涂层材料通过所述间隙逸出。 间隔物如 通过金属片的激光辐射。 本发明的目的是通过适当地形成间隔物来减少金属板之间的距离变化。 这通过一种方法实现，其中激光束执行包括通过其处理表面的中心和/或周围的横向和纵向分量的运动。 这产生具有球形形状的拓扑修饰，即具有大于所述形貌修饰的高度的顶点半径。

公开(公告)号：US20060060573A1

公开(公告)日：2006-03-23

申请号：US11229113

申请日：2005-09-15

申请人： Wolfgang Becker ,  Ralf Bernhardt ,  Klaus Goth ,  Mike Paelmer ,  Claus-Dieter Reiniger ,  Thomas Stahs ,  Daniel Zauner

发明人： Wolfgang Becker ,  Ralf Bernhardt ,  Klaus Goth ,  Mike Paelmer ,  Claus-Dieter Reiniger ,  Thomas Stahs ,  Daniel Zauner

IPC分类号： B23K26/20 ,  B23K26/00

CPC分类号： B23K26/0884 ,  B23K26/32 ,  B23K26/60 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/50

摘要： The invention concerns a process for pretreatment of a workpiece to be processed with a laser beam, as well as a device for carrying out the process. It is the task of the invention to develop a process and a device, which with small expenditure of material and expense, and with few process steps, makes possible an improved weld seam formation for joining workpieces. The invention is comprised therein, that for the pretreatment of a workpiece to be treated with a laser beam, in which on at least one surface of the workpiece with application of a thermal effect of at least one laser beam emitted by a laser source, rises such as knurls are formed, for the positionally correct and undistorted formation of the rises the time and spatial sequence of a relative movement between workpiece and laser beam and the output over time of the laser source are coordinated to each other via a control computer.

摘要翻译： 本发明涉及一种用于用激光束预处理待处理的工件的方法，以及用于执行该过程的装置。 本发明的任务是开发一种工艺和装置，其材料和费用的消耗少，并且几乎没有工艺步骤，可以改善用于连接工件的焊缝形成。 本发明包括用于对用待激光束进行处理的工件的预处理，其中在工件的至少一个表面上施加由激光源发射的至少一个激光束的热效应上升 形成滚花，为了位置正确和无失真地形成，工件和激光束之间的相对移动的时间和空间顺序以及激光源随时间的输出通过控制计算机相互协调。

公开(公告)号：US20060060572A1

公开(公告)日：2006-03-23

申请号：US11225581

申请日：2005-09-13

申请人： Wolfgang Becker ,  Jens Buehler ,  Klaus Goth ,  Claus-Dieter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Jens Buehler ,  Klaus Goth ,  Claus-Dieter Reiniger ,  Daniel Zauner

IPC分类号： B23K26/00

CPC分类号： B23K33/004 ,  B23K26/03 ,  B23K26/24

摘要： For increasing the load bearing capacity of spot-like weld seams for producing a durable joint between at least two components, it is known to lengthen this linearly, that is, to weld with a longitudinal orientation extending more than 30 mm. Such linear weld seams, however, do not endure high loads. The task of the present invention comprises providing linear weld seams with increased load bearing capacity and a process for their production. This task is solved by a process specifically for increasing the load bearing capacity of a linear weld seam for producing a durable joint between at least two components, wherein the location with the highest probability of a weld seam break is determined and then, at this location, a discontinuity is introduced into the weld seam, in such a manner that the tangent of the connecting line exhibits an angle of 15° or more.

摘要翻译： 为了增加用于在至少两个部件之间生产耐用接头的点状焊缝的承载能力，已知将其线性地延长，即以大于30mm的纵向定向焊接。 然而，这种线性焊缝不承受高负载。 本发明的任务包括提供具有增加的承载能力的线性焊缝和其生产方法。 该任务通过专门用于增加用于在至少两个部件之间生产耐用接头的线性焊缝的承载能力的方法来解决，其中确定焊缝断裂概率最高的位置，然后在该位置 ，以使得连接线的切线呈15°以上的方式将不连续性引入焊缝。

公开(公告)号：US07939779B2

公开(公告)日：2011-05-10

申请号：US10526989

申请日：2003-09-03

申请人： Daniel Zauner ,  Claus-Dieter Reiniger ,  Wolfgang Becker ,  Klaus Goth ,  Mike Paelmer

发明人： Daniel Zauner ,  Claus-Dieter Reiniger ,  Wolfgang Becker ,  Klaus Goth ,  Mike Paelmer

IPC分类号： G02B5/00

CPC分类号： B23K26/10 ,  B23K26/60 ,  B23K2101/34 ,  B23K2103/08

摘要： With many coated sheets, in particular zinc-coated sheets as used in the automobile industry, the coating material has a much lower boiling point than the material of the sheet. On welding said sheets together the above leads to explosive evaporation of coating material which seriously affects the quality of the connection. In order to improve the quality of the connection it has already been disclosed that narrow gaps between the sheets can be produced by means of spacers, through which the coating material can escape. The spacers can be produced for example, by means of laser bombardment of the sheets. A disadvantage is the relatively long time necessary for machining, which causes large costs in particular for serial production. The aim of the invention is to reduce the time necessary for machining the sheets whilst at least maintaining, preferably improving the quality of the machining. Said aim is achieved, by means of a method, whereby the laser beam is deflected onto the surface by means of a scanner device. A scanner device is a particularly rapid and flexible beam-diverting device. The above permits a reduction in the machining time by a factor of 10 without reducing the quality of the machining.

摘要翻译： 对于许多涂覆片材，特别是用于汽车工业的镀锌片材，涂料具有比片材材料低得多的沸点。 在将所述片材焊接在一起时，上述导致涂层材料的爆炸性蒸发，这严重影响了连接的质量。 为了提高连接的质量，已经公开了通过间隔件可以产生薄片之间的狭窄间隙，涂层材料可以通过间隔件逸出。 间隔物可以例如通过激光轰击片材来制造。 缺点是加工所需的时间相对较长，尤其是连续生产的成本较高。 本发明的目的是减少加工片材所需的时间，同时至少维持，优选地提高加工质量。 所述目的通过一种方法实现，由此激光束通过扫描器装置偏转到表面上。 扫描仪装置是特别快速和灵活的光束转向装置。 上述允许在不降低加工质量的情况下将加工时间缩短10倍。

公开(公告)号：US07290957B2

公开(公告)日：2007-11-06

申请号：US11344809

申请日：2006-02-01

申请人： Wolfgang Becker ,  Jens Bühler ,  Tilman Froschmeier ,  Klaus Goth ,  Markus Knöller ,  Claus-Deiter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Jens Bühler ,  Tilman Froschmeier ,  Klaus Goth ,  Markus Knöller ,  Claus-Deiter Reiniger ,  Daniel Zauner

IPC分类号： B23K26/28

CPC分类号： B23K26/28 ,  B23K26/702 ,  Y10T403/477

摘要： A laser weld seam with reduced end crater and a process for production thereof are provided. The seam end is provided at a location, which exhibits a excessive material relative to the surrounding surface or thereby, that the seam towards the seam end exhibits a counter-running direction change of its preferred direction, which is designed in such a manner, that as a consequence of the interaction between cooling forward and counter-running seam a backfill of the melt towards the seam end occurs.

摘要翻译： 提供了具有减少的端部火山口的激光焊缝及其制造方法。 接缝端部设置在相对于周围表面呈现过多材料的位置，或者由此向接缝端部的接缝表现出其优选方向的反向运行方向改变，其以这样的方式设计， 由于冷却向前和反向运行的接缝之间的相互作用的结果，熔体朝向缝端发生回填。

公开(公告)号：US07144492B2

公开(公告)日：2006-12-05

申请号：US11140036

申请日：2005-05-27

申请人： Wolfgang Becker ,  Alfred Fuchs ,  Klaus Goth ,  Markus Knoeller ,  Dirk Lindenau ,  Claus-Dieter Reiniger ,  Daniel Zauner

发明人： Wolfgang Becker ,  Alfred Fuchs ,  Klaus Goth ,  Markus Knoeller ,  Dirk Lindenau ,  Claus-Dieter Reiniger ,  Daniel Zauner

IPC分类号： B05D3/02 ,  B05D3/14 ,  B23K26/00

CPC分类号： C25D13/12 ,  Y10T428/12569

摘要： The application of anti-corrosion base coating by cataphoretic painting (KTL) is well known in manufacturing automobile body parts. However the cataphoretic paint can penetrate only incompletely or possibly not at all into the gap in the contact areas of the components joined to each other. This type of gap is conventionally scaled following cataphoretic painting, in order to ensure corrosion protection for the entire assembly. The present invention makes it possible to dispense with the sealing in the production of an assembly of joined conductive components and nevertheless to ensure a sufficient corrosion protection. By introducing topographic changes in the components projecting from their surface in the known contact areas and then joining these components, they are spaced apart by the projecting topographic changes in such a manner that during cataphoretic painting the paint wets the entire surface of the assembly.

摘要翻译： 通过喷漆（KTL）的防腐底漆的应用在制造汽车车身部件方面是众所周知的。 然而，该漆皮漆可以仅穿透不完全或者完全不渗透到彼此接合的部件的接触区域中的间隙中。 这种类型的间隙通常是按照阴影喷漆进行的，以确保整个组件的防腐蚀。 本发明使得可以在制造接合的导电部件的组件中省去密封，并且仍然确保足够的防腐蚀性。 通过在已知的接触区域中从其表面突出的部件中引入地形变化，然后连接这些部件，它们以突出的形状变化间隔开，使得在喷漆期间，涂料润湿组件的整个表面。