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    METHOD FOR BUTT LASER WELDING TWO METAL SHEETS WITH FIRST AND SECOND FRONT LASER BEAMS AND A BACK LASER BEAM
    1.
    发明申请
    METHOD FOR BUTT LASER WELDING TWO METAL SHEETS WITH FIRST AND SECOND FRONT LASER BEAMS AND A BACK LASER BEAM 审中-公开

    公开(公告)号：WO2019130169A1

    公开(公告)日：2019-07-04

    申请号：PCT/IB2018/060367

    申请日：2018-12-19

    申请人： ARCELORMITTAL

    发明人： VIERSTRAETE, René

    IPC分类号： B23K26/06 ,  B23K26/32 ,  B23K26/322 ,  B23K26/242

    CPC分类号： B23K26/242 ,  B23K26/0604 ,  B23K26/32 ,  B23K26/322

    摘要： A method of butt laser welding two metal sheets (2, 4) comprises : providing a first metal sheet (2) and a second metal sheet (4), butt welding the metal sheets (2, 4) along a direction of welding, the butt welding step comprising simultaneously emitting : a first front laser beam (12) creating a first front spot (18) at the intersection with the first metal sheet (2), and generating a first front keyhole in the first metal sheet (2) at the first front spot (18), a second front laser beam (14) creating a second front spot (20) at the intersection with the second metal sheet (4), and generating a second front keyhole in the second metal sheet (4) at the second front spot (20), a back laser beam (16) creating a back spot (22) on the first and second metal sheets (2, 4), and generating a back keyhole in the first and second metal sheets (2, 4) at the back spot (22), the first and second front laser beams (12, 14) and the back laser beam (16) being configured in such a manner that at each moment in time, a solid phase region and/or a liquid phase region of the metal sheets (2, 4) remains between the first front keyhole and the back keyhole and between the second front keyhole and the back keyhole.

    METHOD FOR BUTT LASER WELDING TWO METAL SHEETS WITH FIRST AND SECOND FRONT LASER BEAMS AND A BACK LASER BEAM
    2.
    发明申请
    METHOD FOR BUTT LASER WELDING TWO METAL SHEETS WITH FIRST AND SECOND FRONT LASER BEAMS AND A BACK LASER BEAM 审中-公开

    公开(公告)号：WO2019130043A1

    公开(公告)日：2019-07-04

    申请号：PCT/IB2017/058402

    申请日：2017-12-26

    申请人： ARCELORMITTAL

    发明人： VIERSTRAETE, René

    IPC分类号： B23K26/06 ,  B23K26/32 ,  B23K26/322 ,  B23K26/242

    CPC分类号： B23K26/242 ,  B23K26/0604 ,  B23K26/32 ,  B23K26/322

    摘要： The present application relates to a method of butt laser welding two metal sheets (2, 4), the method comprising the steps of : providing a first metal sheet (2) and a second metal sheet (4), butt welding the metal sheets (2, 4) along a direction of welding, the butt welding step comprising simultaneously emitting : a first front laser beam (12) creating a first front spot (18) at the intersection with the first metal sheet (2), and generating a first front keyhole (19) in the first metal sheet (2) at the first front spot (18); a second front laser beam (14) creating a second front spot (20) at the intersection with the second metal sheet, and generating a second front keyhole in the second metal sheet (4) at the second front spot (20); a back laser beam (16) creating a back spot (22) on the first and second metal sheets (2, 4), and generating a back keyhole (23A) in the first and second metal sheets (2, 4) at the back spot (22); the first and second front laser beams (12, 14) and the back laser beam (16) being configured in such a manner that at each moment in time, a solid phase region and/or a liquid phase region of the metal sheets (2, 4) remains between the first front keyhole and the back keyhole and between the second front keyhole and the back keyhole.

    MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING
    3.
    发明申请
    MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING 审中-公开
    多波束激光系统和焊接方法

    公开(公告)号：WO2016200621A3

    公开(公告)日：2017-03-09

    申请号：PCT/US2016034354

    申请日：2016-05-26

    申请人： IPG PHOTONICS CORP

    发明人： SCHERBAKOV EUGENE ,  FOMIN VALENTIN ,  ABRAMOV ANDREY ,  YAGODKIN DIMITRI ,  MAMEROW HOLGER

    IPC分类号： B23K26/21 ,  B23K26/067 ,  B23K26/70

    CPC分类号： B23K26/22 ,  B23K26/0604 ,  B23K26/24 ,  B23K26/32 ,  B23K26/322 ,  B23K2201/006 ,  B23K2201/18 ,  B23K2201/34 ,  B23K2203/04 ,  B23K2203/10 ,  G02B6/26

    摘要： The present invention provides a multi-fiber laser output system that delivers at least three fiber outputs arranged in a circumferential pattern or otherwise at least four distinct laser outputs from a single processing cable. The present invention allows for controlling the at least three laser modules and delivering their respective outputs in a pre-determined sequence in a single processing cable, thereby providing multiple processing steps on a work piece that heretofore required separate optics for each beam. The at least three laser outputs are optimized for use in creating spot welds, seam welds or virtual wobble welds when used for seam welding.

    摘要翻译： 本发明提供了一种多光纤激光输出系统，其输出至少三个以圆周图案排列的光纤输出，或另外输送来自单个处理线缆的至少四个不同的激光输出。 本发明允许控制至少三个激光模块并且以预定的顺序在单个处理电缆中传送它们各自的输出，由此在工件上提供多个处理步骤，该处理步骤迄今为每个光束需要单独的光学器件。 当用于缝焊时，至少三个激光输出被优化用于创建点焊，缝焊或虚拟摆动焊接。

    MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING
    4.
    发明申请
    MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING 审中-公开
    多管激光系统及其焊接方法

    公开(公告)号：WO2016200621A9

    公开(公告)日：2017-02-02

    申请号：PCT/US2016034354

    申请日：2016-05-26

    申请人： IPG PHOTONICS CORP

    发明人： SCHERBAKOV EUGENE ,  FOMIN VALENTIN ,  ABRAMOV ANDREY ,  YAGODKIN DIMITRI ,  MAMEROW HOLGER

    IPC分类号： B23K26/21 ,  B23K26/067 ,  B23K26/70

    CPC分类号： B23K26/22 ,  B23K26/0604 ,  B23K26/24 ,  B23K26/32 ,  B23K26/322 ,  B23K2201/006 ,  B23K2201/18 ,  B23K2201/34 ,  B23K2203/04 ,  B23K2203/10 ,  G02B6/26

    摘要： The present invention provides a multi-fiber laser output system that delivers at least three fiber outputs arranged in a circumferential pattern or otherwise at least four distinct laser outputs from a single processing cable. The present invention allows for controlling the at least three laser modules and delivering their respective outputs in a pre-determined sequence in a single processing cable, thereby providing multiple processing steps on a work piece that heretofore required separate optics for each beam. The at least three laser outputs are optimized for use in creating spot welds, seam welds or virtual wobble welds when used for seam welding.

    摘要翻译： 本发明提供了一种多光纤激光输出系统，其传送以圆周图案布置的至少三个光纤输出或者从单个处理电缆输送至少四个不同的激光输出。 本发明允许控制至少三个激光模块并且以预定的顺序在单个处理电缆中传送它们各自的输出，从而在工件上提供多个处理步骤，此前对于每个光束需要单独的光学元件。 当用于缝焊时，至少有三个激光输出被优化用于创建点焊，缝焊或虚拟摆动焊缝。

    METHOD AND APPARATUS OF VERY MUCH FASTER 3D PRINTER
    5.
    发明申请
    METHOD AND APPARATUS OF VERY MUCH FASTER 3D PRINTER 审中-公开
    非常多的3D打印机的方法和设备

    公开(公告)号：WO2016198929A1

    公开(公告)日：2016-12-15

    申请号：PCT/IB2015/059801

    申请日：2015-12-19

    申请人： MATHUR, Ashok Chand

    发明人： MATHUR, Ashok Chand

    IPC分类号： B33Y50/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y30/00 ,  G06T19/20 ,  B29C67/00

    CPC分类号： B23K26/342 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K1/0056 ,  B23K26/04 ,  B23K26/211 ,  B23K26/22 ,  B23K26/322 ,  B23K2203/166 ,  B23K2203/172 ,  B29C64/386 ,  B29C67/0077 ,  B29C67/0088 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  B33Y70/00 ,  G06T7/50 ,  G06T19/20 ,  G06T2219/2004

    摘要： A 3D printer that is mostly twenty to thirty times faster than existing 3D printers. Pixel-based Raster images are converted into Scalable Vector Graphic (SVG) images, which are then categorized as lines, curves and surface areas. For each category, faster printing methods for printing with pre-formed shapes such as rods, boards, arcs, etc., are disclosed. Pre-formed shapes may be made of plastic/thermoplastic/polymer or sintering materials, as desired. Sintering materials may be cladded/coated with appropriate materials such as solder, copper, and thermoplastics. The new print-head, which has a fixed portion and a replaceable portion, has a mechanism to draw upon pre-formed shapes to print. The replaceable portion has varying shapes and sizes of placement holes, and a mechanism to signal which replaceable portion has been mounted. The print-head incorporates mechanisms to heat and tack the pre-formed shapes. The invention discloses methods to use multiple print-heads to further speed up printing.

    摘要翻译： 一种3D打印机，比现有的3D打印机大大多出二十到三十倍。 基于像素的光栅图像被转换为​​可缩放矢量图形（SVG）图像，然后将其分为线条，曲线和表面区域。 对于每个类别，公开了用于具有诸如棒，板，弧等的预成形形状的打印的更快的打印方法。 预制的形状可以根据需要由塑料/热塑性/聚合物或烧结材料制成。 烧结材料可以用适当的材料如焊料，铜和热塑性材料包覆/涂覆。 具有固定部分和可更换部分的新的打印头具有利用预先形成的形状进行打印的机构。 可替换部分具有不同形状和尺寸的放置孔，以及用于发信号通知哪个可替换部分已经被安装的机构。 打印头包含加热和粘合预成形形状的机构。 本发明公开了使用多个打印头进一步加速打印的方法。

    PROCESS AND SYSTEM FOR LASER WELDING PRE-COATED SHEET METAL WORKPIECES
    6.
    发明申请
    PROCESS AND SYSTEM FOR LASER WELDING PRE-COATED SHEET METAL WORKPIECES 审中-公开
    用于激光焊接预涂层金属工件的工艺和系统

    公开(公告)号：WO2015192219A1

    公开(公告)日：2015-12-23

    申请号：PCT/CA2015/000403

    申请日：2015-06-19

    申请人： MAGNA INTERNATIONAL INC.

    发明人： GU, Hongping ,  SHULKIN, Boris ,  MUELLER, Robert ,  BRADY, Jeremiah John

    IPC分类号： B23K26/00

    CPC分类号： B23K26/0608 ,  B23K26/322 ,  B23K26/361 ,  B23K2201/006 ,  B23K2203/04 ,  B23K2203/08

    摘要： A process for laser-welding pre-coated sheet metal plates comprises loading two pre- coated sheet metal plates at a workstation, such that edges of the plates that are to be welded together are butted against one another. Each plate has a steel substrate and a pre-coat layer, the pre-coat layer including an intermetallic alloy layer and a metallic alloy layer. In a single pass, an area of each plate adjacent to the edges that are butted against one another is irradiated with a defocussed laser beam, thereby melting material of the pre-coat layer within said area of each plate. During the single pass, a stream of a gas is used to blow the melted pre-coat material out of the irradiated areas of the two plates. Absent removing the two plates from the workstation, laser- welding the plates together is performed using a focused laser beam.

    摘要翻译： 用于激光焊接预涂金属板的方法包括在工作站上装载两个预涂覆的金属板，使得待焊接在一起的板的边缘彼此对接。 每个板具有钢基材和预涂层，预涂层包括金属间合金层和金属合金层。 在单次通过中，用离焦的激光束照射与彼此对接的边缘相邻的每个板的区域，从而在每个板的所述区域内熔化预涂层的材料。 在单次通过期间，使用气流将熔融的预涂层材料吹出两个板的照射区域。 没有从工作站移除两块板，使用聚焦激光束将板激光焊接在一起。

    METHOD AND SYSTEM TO START AND USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR ROOT PASS WELDING OF THE INNER DIAMETER OF CLAD PIPE
    7.
    发明申请
    METHOD AND SYSTEM TO START AND USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR ROOT PASS WELDING OF THE INNER DIAMETER OF CLAD PIPE 审中-公开
    方法和系统开始和使用组合填料线和高强度能量源对管道内径的根管焊接

    公开(公告)号：WO2015132651A2

    公开(公告)日：2015-09-11

    申请号：PCT/IB2015/000281

    申请日：2015-03-05

    申请人： LINCOLN GLOBAL, INC.

    发明人： DENNEY, Paul, Edward ,  PETERS, Steven, R. ,  FREEMAN, David ,  BEARDSLEY, Kevin

    CPC分类号： B23K26/24 ,  B23K9/0213 ,  B23K9/0282 ,  B23K9/1056 ,  B23K9/1093 ,  B23K9/23 ,  B23K26/211 ,  B23K26/282 ,  B23K26/32 ,  B23K26/322 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2201/34 ,  B23K2203/08 ,  B23K2203/50

    摘要： A welding system (100, 1200, 1400, 1700, 2000) includes at least one high intensity energy source to create a weld puddle (P) during a root pass on a narrow joint of a workpiece (115, 1041 ) with a clad layer. The system (100, 1200, 1400, 1700, 2000) also includes a controller to control a weld ramp out process such that, as the molten puddle (P) advances to a start of an existing root pass weld, the controller at least one of decreases an energy output of the at least one high intensity energy source and reduces an interaction time between the at least one high intensity energy source and the weld puddle (P). After completion of the root pass, a thickness of a root pass weld in a region that is at or near the start point of the existing root pass weld is in a range of 100 percent to 130 percent of a nominal root pass thickness of a remainder of the root pass weld.

    摘要翻译： 焊接系统（100,1200,1400,1700,2000）包括至少一个高强度能量源，以在工件（115,1041）的窄接头上的根部通过期间产生焊接熔池（P），其中包层 。 该系统（100,1200,1400,1700,2000）还包括控制器，用于控制焊接斜坡过程，使得当熔融熔池（P）前进到现有根管焊接的开始时，控制器至少一个 降低所述至少一个高强度能量源的能量输出并且减小所述至少一个高强度能量源和所述焊接熔池（P）之间的相互作用时间。 在完成根部通过之后，在现有根部焊缝的起始点处或附近的区域中的根部焊缝的厚度在其余部分的标称根部通过厚度的100％至130％的范围内 的根管焊缝。

    FLUX ASSISTED LASER REMOVAL OF THERMAL BARRIER COATING
    8.
    发明申请
    FLUX ASSISTED LASER REMOVAL OF THERMAL BARRIER COATING 审中-公开
    通路辅助激光去除热障涂层

    公开(公告)号：WO2015084582A1

    公开(公告)日：2015-06-11

    申请号：PCT/US2014/066110

    申请日：2014-11-18

    申请人： SIEMENS ENERGY, INC.

    发明人： BRUCK, Gerald J. ,  KAMEL, Ahmed

    IPC分类号： B23K26/32 ,  B23K26/34 ,  B23K35/02 ,  B23P6/00 ,  B23P6/04 ,  F01D5/00 ,  B23K9/04 ,  B08B7/00

    CPC分类号： B08B7/0014 ,  B08B7/0042 ,  B23K26/144 ,  B23K26/18 ,  B23K26/322 ,  B23K26/34 ,  B23K35/0244 ,  B23K35/36 ,  B23K35/3601 ,  B23K35/3602 ,  B23K35/3605 ,  B23K2201/001 ,  B23K2201/34 ,  B23K2203/08 ,  B23P6/007 ,  B23P6/045 ,  F01D5/005

    摘要： A method of removing a ceramic thermal barrier coating system (18). Laser energy (20) is applied to the thermal barrier coating system in the presence of a flux material (22) in order to form a melt (26). Upon removal of the energy, the melt solidifies to from a layer of slag (28) which is more loosely adhered to the underlying metallic substrate (12) than the original thermal barrier coating system. The slag is then broken and released from the substrate with a mechanical process such as grit blasting (30). Sufficient energy may be applied to melt an entire depth of the coating system along with a thin layer (34) of the substrate, thereby forming a refreshed surface (36) on the substrate upon resolidification.

    摘要翻译： 一种去除陶瓷热障涂层系统（18）的方法。 为了形成熔体（26），在助焊剂材料（22）的存在下，将激光能量（20）施加到热障涂层系统。 在去除能量时，熔体从比原来的热障涂层系统更松散地粘附到下面的金属基底（12）的熔渣（28）固化。 然后利用诸如喷砂（30）的机械工艺将炉渣从基材上破碎并释放。 可以施加足够的能量以与衬底的薄层（34）一起熔化涂层系统的整个深度，从而在再次固化时在衬底上形成刷新的表面（36）。