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91. 发明申请

US20160354866A1 Laser Processing Heads with a Cross-Jet Nozzle 审中-公开
标题翻译：激光加工头与交叉喷嘴
公开(公告)号：US20160354866A1
公开(公告)日：2016-12-08
申请号：US15244098
申请日：2016-08-23
申请人： TRUMPF Laser- und Systemtechnik GmbH
发明人： Gerhard Broghammer , Jeremy Meyer , Volker Rominger
IPC分类号： B23K26/142 , B23K26/14 , B23K26/064
CPC分类号： B23K26/142 , B23K26/064 , B23K26/1435 , B23K26/1476
摘要： A laser machining head includes a focusing optical unit for focusing a laser beam in a direction of a machining zone of a workpiece and includes a cross-jet nozzle for producing a cross flow that passes through the focused laser beam transversely (e.g., at a right angle to) a beam axis of the focused laser beam. The distance of the cross-jet nozzle from the workpiece is less than 20 mm (e.g., between 8 mm and 12 mm). A nozzle body having a bottom opening that faces downward toward the workpiece is provided laterally adjacent to the focused laser beam. A protective gas flows out of the bottom opening, which is arranged below the cross-jet nozzle in order to entrain the protective gas flowing between the nozzle body and the workpiece due to the cross flow of the cross-jet nozzle so that the protective gas flows over the machining zone.
摘要翻译：激光加工头包括聚焦光学单元，用于在工件的加工区域的方向上聚焦激光束，并且包括用于产生横向流过聚焦激光束的横向流（例如，在右侧）的交叉喷嘴聚焦激光束的光束轴的角度）。交叉喷嘴与工件的距离小于20mm（例如8mm至12mm）。具有向下朝向工件的底部开口的喷嘴体设置在横向上与聚焦的激光束相邻。保护气体从底部开口流出，其布置在交叉喷嘴下方，以便由于交叉喷嘴的交叉流动夹带保护气体在喷嘴体和工件之间流动，使得保护气体流过加工区。

92. 发明授权

US09501821B2 Method for detecting defects during a laser-machining process and laser-machining device 有权
标题翻译：激光加工过程中的缺陷检测方法和激光加工装置
公开(公告)号：US09501821B2
公开(公告)日：2016-11-22
申请号：US14140711
申请日：2013-12-26
申请人： TRUMPF Laser—und Systemtechnik GmbH
发明人： Dieter Pfitzner , Holger Braun , Friedhelm Dorsch
IPC分类号： B23K26/02 , G06T7/00 , B23K26/03 , B23K26/04 , B23K26/32
CPC分类号： G06T7/0008 , B23K26/032 , B23K26/034 , B23K26/04 , B23K26/244 , B23K26/32 , B23K26/322 , B23K2101/34 , B23K2103/08 , B23K2103/50
摘要： Detection of defects during a machining process includes: moving a laser beam along a predefined path over multiple workpieces to be machined so as to generate a weld seam or a cutting gap in the workpieces; detecting, in a two-dimensional spatially resolved detector field of a detector, radiation emitted and/or reflected by the multiple workpieces; selecting at least one detection field section in the detection field of the detector based on laser beam control data defining movement of the laser beam along the predefined path or based on a previously determined actual-position data of the laser beam along the predefined path, wherein each detection field section comprises a region encompassing less than the entire detection field; evaluating the radiation detected in the selected detection field section; and determining whether a defect exists at the weld seam or the cutting gap based on the evaluated radiation.
摘要翻译：在加工过程中检测缺陷包括：将激光束沿预定路径移动到待加工的多个工件上，以便在工件中产生焊缝或切割间隙; 在检测器的二维空间分辨检测器场中检测由多个工件发射和/或反射的辐射; 基于激光束控制数据来选择检测器的检测区域中的至少一个检测场部分，所述激光束控制数据定义激光束沿预定路径的运动，或者基于先前确定的沿预定路径的激光束的实际位置数据，其中每个检测场部分包括一个包含小于整个检测场的区域; 评估在所选择的检测场部分中检测到的辐射; 以及基于所评估的辐射来确定在所述焊缝或所述切割间隙处是否存在缺陷。

93. 发明申请

US20160152508A1 Processing a Plate-Like Workpiece having a Transparent, Glass, Glass-Like, Ceramic and/or Crystalline Layer 审中-公开
标题翻译：加工具有透明，玻璃，玻璃状，陶瓷和/或结晶层的板状工件
公开(公告)号：US20160152508A1
公开(公告)日：2016-06-02
申请号：US15016888
申请日：2016-02-05
申请人： TRUMPF Laser- und Systemtechnik GmbH
发明人： Malte Kumkar
IPC分类号： C03B33/02 , C03C15/00 , C03B33/033
CPC分类号： C03B33/0222 , B23K26/0838 , B23K26/364 , B23K26/40 , B23K2103/50 , B23K2103/52 , B28D1/221 , C03B33/033 , C03C15/00 , H01J9/20
摘要： A plate-like workpiece having a transparent, glass, glass-like, ceramic and/or crystalline layer, such as for use in an electronic display screen, is processed into separate segments by first incompletely severing the workpiece along outer contours of bounded segments, by forming holes through the layer with a laser beam, leaving the segments interconnected at narrow connections, and then separating the segments by severing the web-like connections.
摘要翻译：具有透明，玻璃，玻璃状，陶瓷和/或结晶层（例如用于电子显示屏幕）的板状工件通过首先沿着有界段的外轮廓不完全地切断工件而被加工成单独的段，通过用激光束形成穿过该层的孔，使分段以狭窄的连接相互连接，然后通过切断网状连接来分离段。

94. 发明授权

US09306361B2 Gas lasers including heat exchangers 有权
标题翻译：气体激光器包括热交换器
公开(公告)号：US09306361B2
公开(公告)日：2016-04-05
申请号：US14091896
申请日：2013-11-27
申请人： TRUMPF Laser- und Systemtechnik GmbH
发明人： Mark Geschwandner , Matthias Breisacher
IPC分类号： H01S3/04 , H01S3/041 , F28D7/16 , F28F1/24 , H01S3/036 , F28F21/08 , H01S3/083 , H01S3/0971 , H01S3/223 , F28F19/06
CPC分类号： H01S3/041 , F28D7/1623 , F28F1/24 , F28F19/06 , F28F21/083 , F28F21/084 , F28F2220/00 , F28F2280/02 , H01S3/036 , H01S3/0835 , H01S3/0971 , H01S3/2232
摘要： A gas laser includes a fan for producing a flow of a laser gas and a heat exchanger including multiple heat exchanger pipes. The heat exchanger further includes two end plates to which the multiple heat exchanger pipes are secured at the opposing ends thereof. The two end plates include openings for supplying a heat exchanger fluid to the multiple heat exchanger pipes. The multiple heat exchanger pipes extend substantially transversely relative to a flow direction of the flow of laser gas.
摘要翻译：气体激光器包括用于产生激光气体流的风扇和包括多个热交换器管的热交换器。热交换器还包括两个端板，多个热交换器管在其两端固定到该端板上。两个端板包括用于将热交换器流体供应到多个热交换器管的开口。多个热交换器管相对于激光气流的流动方向基本上横向延伸。

95. 发明申请

US20150293306A1 Method and Arrangement for the Generation of a Laser Beam With Different Beam Profile Characteristics by Means of a Multi-Clad Fibre 有权
标题翻译：通过多层光纤生成具有不同光束特性的激光束的方法和装置
公开(公告)号：US20150293306A1
公开(公告)日：2015-10-15
申请号：US14300138
申请日：2014-06-09
申请人： TRUMPF LASER- UND SYSTEMTECHNIK GMBH
发明人： Rudolf HUBER , Wolfgang ANDREASCH
IPC分类号： G02B6/35 , G02B6/42 , G02B6/02
CPC分类号： G02B6/3508 , B23K26/064 , B23K26/067 , B23K26/073 , B23K2103/06 , G02B6/02042 , G02B6/03644 , G02B6/262 , G02B6/35 , G02B6/4206 , G02B6/4296
摘要： The invention concerns a method for generating a laser beam (3) with different beam profile characteristics, whereby a laser beam (2) is coupled into one fibre end (1a) of a multi-clad fibre (1), in particular a double-clad fibre, and emitted from the other fibre end (1b) of the multi-clad fibre (1) and whereby, to generate different beam profile characteristics of the output laser beam (3), the input laser beam (2) is electively coupled either at least into the inner fibre core (4) of the multi-clad fibre (1) or at least into at least one outer ring core (6) of the multi-clad fibre (1), as well as a corresponding arrangement (10).
摘要翻译：本发明涉及一种用于产生具有不同光束轮廓特性的激光束（3）的方法，由此将激光束（2）耦合到多包层光纤（1）的一个光纤端（1a）中，并且从多包层光纤（1）的另一个光纤端（1b）发射，并且由此，为了产生输出激光束（3）的不同光束轮廓特性，输入激光束（2）被选择性耦合至少进入多包层光纤（1）的内纤维芯（4）或至少形成多包层光纤（1）的至少一个外环芯（6），以及相应的布置（ 10）。

96. 发明申请

US20150270678A1 Diffusion-Cooled Gas Laser Arrangement and Method for Setting the Discharge Distribution in the Case of Diffusion-Cooled Gas Laser Arrangement 审中-公开
标题翻译：扩散冷却气体激光器布置方案和扩散冷却气体激光器布置情况下放电分布设置方法
公开(公告)号：US20150270678A1
公开(公告)日：2015-09-24
申请号：US14732353
申请日：2015-06-05
申请人： TRUMPF Laser- und Systemtechnik GmbH
发明人： Markus Schwandt , Stefan Knupfer , Gerold Mahr
IPC分类号： H01S3/097 , H01S3/223 , H01S3/038
CPC分类号： H01S3/097 , H01S3/038 , H01S3/0388 , H01S3/2232
摘要： A diffusion-cooled gas laser system that includes a first and a second electrode and a discharge gap arranged between the electrodes, wherein a dielectric is arranged on at least one of the electrodes on the discharge-gap side. The system is characterized in that the dielectric thickness d/∈res the dielectric for influencing the discharge ∈res of distribution in the discharge gap varies along at least one dimension of the electrode on which the dielectric is arranged, wherein d is the thickness of the dielectric, and ∈res is the resultant constant of the dielectric, and, at its thickest point, has a thickness of at least 1 mm or is greater than one hundredth of the length of the electrode or is greater than one thousandth of a wavelength determined by the frequency of a radiofrequency electrical power to be coupled into the system.
摘要翻译：一种扩散冷却气体激光器系统，其包括第一和第二电极以及布置在所述电极之间的放电间隙，其中电介质布置在所述放电间隙侧的所述电极中的至少一个上。该系统的特征在于，电介质厚度d /∈用于影响放电间隙中分布的放电∈res的电介质沿着布置电介质的电极的至少一个维度而变化，其中d是电介质和εε是电介质的合成常数，并且在其最厚点处具有至少1mm的厚度或大于电极长度的百分之一或大于所确定的波长的千分之一通过要耦合到系统中的射频电力的频率。

97. 发明申请

US20130327963A1 EUV excitation light source with a laser beam source and a beam guide device for manipulating the laser beam 有权
公开(公告)号：US20130327963A1
公开(公告)日：2013-12-12
申请号：US13837770
申请日：2013-03-15
申请人： TRUMPF LASER- UND SYSTEMTECHNIK GMBH
发明人： Martin Lambert , Joachim Schulz
IPC分类号： G21K5/04
CPC分类号： G21K5/04 , B23K26/0676 , H01S3/005 , H01S3/2391 , H05G2/005 , H05G2/008
摘要： An Extreme Ultra-Violet (EUV) excitation light source has a beam guide device for manipulating at least one laser beam is provided. The beam guide device comprises at least one beam splitter for generating at least two separated beams from at least one laser beam, at least one mirror or a lens for manipulating at least one of the separated beams, a superposition mirror for superposing the at least two separated beams, and a focusing appliance for generating a respective focus for each of the at least two separated beams. At least two focuses can be generated at one identical location or at two different locations by the beam guide device.

98. 发明公开

US20240375208A1 METHOD FOR DETERMINING A GEOMETRICAL OUTCOME VARIABLE AND/OR A QUALITY FEATURE OF A WELD SEAM ON A WORKPIECE 审中-公开
公开(公告)号：US20240375208A1
公开(公告)日：2024-11-14
申请号：US18774977
申请日：2024-07-17
申请人： TRUMPF Laser- und Systemtechnik GmbH
发明人： Patrick Haug , Tim Hesse , Nicolai Speker , Philipp Scheible
IPC分类号： B23K26/03 , B23K26/244 , B23K31/12
CPC分类号： B23K26/032 , B23K26/244 , B23K31/125
摘要： A method for determining at least one geometrical outcome variable and/or at least one quality feature of a weld seam on at least one workpiece includes scanning the weld seam using a measurement beam during laser beam welding of the weld seam in order to acquire data points. The measurement beam is moved along at least one measurement path on the weld seam. The acquired data points indicate a height and/or a depth of the weld seam in relation to a workpiece surface of the at least one workpiece. The method further includes determining the at least one geometrical outcome variable and/or the at least one quality feature by evaluating the acquired data points.

99. 发明公开

US20240367262A1 METHOD FOR WELDING ZINC-COATED SHEETS 审中-公开
公开(公告)号：US20240367262A1
公开(公告)日：2024-11-07
申请号：US18741833
申请日：2024-06-13
申请人： TRUMPF Laser- und Systemtechnik GmbH
发明人： Travis Stempky , Chonghua Jiang
IPC分类号： B23K26/244 , B23K26/00 , B23K26/06 , B23K26/082 , B23K26/322 , B23K101/34 , B23K103/04
CPC分类号： B23K26/244 , B23K26/0006 , B23K26/0665 , B23K26/082 , B23K26/322 , B23K2101/34 , B23K2103/04
摘要： A method of welding two metal sheets includes providing a first sheet having a first weld surface and a second sheet having a second weld surface. The first sheet has a zinc coating on the first weld surface. The method further includes arranging the first and the second weld surfaces such that the first and the second weld surfaces face each other with a gap therebetween, and irradiating the first and the second weld surfaces with a laser beam. The laser beam is moved with a wobbling motion in a feed direction along an imaginary feed line and perpendicular to the imaginary feed line. A path of the laser beam along the imaginary feed line is of a periodic shape. A width of the path perpendicular to the imaginary feed line is greater than a length of a period of the path along the imaginary feed line.

100. 发明授权

US12115595B2 Hairpin welding method and apparatus 有权
公开(公告)号：US12115595B2
公开(公告)日：2024-10-15
申请号：US17469905
申请日：2021-09-09
申请人： TRUMPF Laser—und Systemtechnik GmbH
发明人： Oliver Bocksrocker , Nicolai Speker , Jens Brueggebors
IPC分类号： B23K26/21 , B23K26/03 , B23K26/073 , B23K26/08 , B23K101/32 , B23K103/12
CPC分类号： B23K26/21 , B23K26/032 , B23K26/073 , B23K26/0876 , B23K2101/32 , B23K2103/12
摘要： A hairpin welding method welds wire ends of at least two copper wires, arranged flush next to one another, to one another by a laser beam. The laser beam is generated with a beam cross section that impinges on the wire ends at an end side and has a round core region and a ring region surrounding the round core region. A ratio of an external diameter of the ring region to a diameter of the core region is between 7:1 and 2:1. A ratio of a laser power in the core region to a laser power in the ring region is between 10:90 and 70:30.

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