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    LASER WELDING METHOD AND LASER WELDING DEVICE
    71.
    发明申请
    LASER WELDING METHOD AND LASER WELDING DEVICE 审中-公开
    激光焊接方法和激光焊接装置

    公开(公告)号：US20150352672A1

    公开(公告)日：2015-12-10

    申请号：US14762749

    申请日：2014-02-13

    申请人： NISSAN MOTOR CO., LTD.

    发明人： Keisuke KINOSHITA ,  Kazuhiko KAGIYA ,  Mitsuhiro HASUNUMA ,  Shintaro NONAKA

    IPC分类号： B23K26/30 ,  B23K26/34 ,  B23K26/00 ,  B23K26/02 ,  B23K26/32 ,  B23K26/20

    CPC分类号： B23K26/34 ,  B23K26/0006 ,  B23K26/0093 ,  B23K26/02 ,  B23K26/20 ,  B23K26/22 ,  B23K26/244 ,  B23K26/60 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/50 ,  Y10T29/49996

    摘要： A laser welding method includes a pretreatment process and a welding process. At least one metal member of the plurality of metal members is formed from a metal-plated steel plate in which a base metal has been covered with a coating material that has a melting point lower than the base metal. In the pretreatment process, with the position of the first metal member in the in-plane direction fixed, processing is performed from the front surface of the first metal member to form on the back surface, a protrusion that bulges from the back surface. Then, in the welding process, the first metal member in which a protrusion has been formed is superposed on a second metal member with the protrusion therebetween while maintaining the position in the in-plane direction, and laser light is irradiated on the superposed region to weld the plurality of metal members to each other.

    摘要翻译： 激光焊接方法包括预处理工艺和焊接工艺。 多个金属构件的至少一个金属构件由金属镀覆钢板形成，其中贱金属已经被熔点低于贱金属的涂层材料覆盖。 在预处理过程中，由于第一金属构件在面内方向的位置固定，从第一金属构件的前表面进行处理，从而在背面形成从背面凸出的突起。 然后，在焊接工序中，将形成有突起的第一金属构件重叠在第二金属构件上，同时在其间保持位于面内方向的位置，并将激光照射在叠置区域上 将多个金属构件彼此焊接。

    Device and method for laser material machining
    72.
    发明申请
    Device and method for laser material machining 有权
    激光材料加工的装置和方法

    公开(公告)号：US20150321286A1

    公开(公告)日：2015-11-12

    申请号：US14648046

    申请日：2013-11-29

    申请人： DIRECTPHOTONICS INDUSTRIES

    发明人： Stefan Heinemann ,  Haro Fritsche ,  Bastian Kruschke ,  Wolfgang Gries ,  Fabio Ferrario ,  Ralf Koch

    IPC分类号： B23K26/06 ,  B23K26/34

    CPC分类号： B23K26/0604 ,  B23K26/0608 ,  B23K26/0613 ,  B23K26/0622 ,  B23K26/0643 ,  B23K26/073 ,  B23K26/34

    摘要： The invention discloses a device for laser material machining, with at least two laser beam sources (2a-2c) which emit laser beams (5a-5c) of different wavelengths, with associated beam imaging means (3a-3c), to configure appropriately the beam paths of each associated laser beam (5a-5c), a beam superposition device (6), to overlay the laser beams (5a-5c) on each other, and imaging optics (8), to image the overlaid laser beams (5a-5c) onto a workpiece (12) so that respective focal points are associated with the laser beams (5a-5c) in the focus of the imaging optics (8) on the workpiece (12), wherein the beam imaging means image the laser beams (5a-5c) onto the respective focal points in a predefined arrangement which can be varied by means of the beam imaging means (3a-3c). According to the invention, electronic control devices (4a-4c) are provided which are able to vary each of the outputs of the laser beams (5a-5c) with a high frequency to vary the intensities of the respective focal points at the focus of the imaging optics (8) in a predefined manner. In this way, a high frequency control of the parameters of laser material machining which can be combined with conventional modulation techniques is implemented.

    摘要翻译： 本发明公开了一种用于激光材料加工的装置，其中至少两个用相关联的光束成像装置（3a-3c）发射不同波长的激光束（5a-5c）的激光束源（2a-2c）适当地配置 每个相关联的激光束（5a-5c）的光束路径，用于将激光束（5a-5c）彼此覆盖的光束叠加装置（6），以及成像光学元件（8），以将重叠的激光束（5a -5c）到工件（12）上，使得各个焦点与在工件（12）上的成像光学器件（8）的焦点处的激光束（5a-5c）相关联，其中光束成像装置对激光成像 光束（5a-5c）以预定的布置方式放置到各个焦点上，该布置可以通过光束成像装置（3a-3c）而改变。 根据本发明，提供了能够以高频率改变激光束（5a-5c）的每个输出的电子控制装置（4a-4c），以改变在焦点处的各个焦点的强度 成像光学器件（8）。 以这种方式，实现了可以与常规调制技术组合的激光材料加工参数的高频控制。

    CLADDING APPARATUS AND METHOD
    74.
    发明申请
    CLADDING APPARATUS AND METHOD 有权
    包装设备和方法

    公开(公告)号：US20150315710A1

    公开(公告)日：2015-11-05

    申请号：US14266358

    申请日：2014-04-30

    申请人： Wayne Marion Penn ,  Donald G. Johnson

    发明人： Wayne Marion Penn ,  Donald G. Johnson

    IPC分类号： C23C26/02 ,  C23C4/06 ,  C23C4/12

    CPC分类号： C23C26/02 ,  B05B5/00 ,  B05B7/10 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/34 ,  B23K26/348 ,  B23K26/703 ,  B23K2103/05 ,  B23K2103/26 ,  C23C4/06 ,  C23C4/12 ,  G02B6/4268

    摘要： The inventions disclosed by this application are for a cladding apparatus, a cladding head, and a method of cladding a relatively planar solid object such as a boiler waterwall. Cladding of non-horizontal surfaces is complicated by the effects of gravity as melted clad material trends to runoff the surface before the cladding material bonds to the appropriate location. The disclosed inventions overcome these limitations by controlling the relative angle of application by either rotating the workpiece or the cladding head through a pre-programmed sequence. Also presented in a compact design for a laser cladding head that facilitates such cladding by minimizing movement of the laser fiber and improves cladding speed over irregular shaped objects.

    摘要翻译： 本申请公开的发明是用于包层设备，包覆头，以及包覆诸如锅炉水壁的相对平面的固体物体的方法。 非水平表面的包覆由于重力的影响而变得复杂，因为熔融的包覆材料趋向于在包层材料粘合到适当位置之前使表面径流。 所公开的发明通过通过预编程的序列旋转工件或包层头来控制施加的相对角度来克服这些限制。 激光熔覆头的紧凑设计也呈现出一种紧凑的设计，通过使激光光纤的运动最小化并使包层速度提高到不规则形状的物体上，从而有助于这种包层。

    ADDITIVE LAYER MANUFACTURING
    75.
    发明申请
    ADDITIVE LAYER MANUFACTURING 有权
    添加剂制造

    公开(公告)号：US20150306665A1

    公开(公告)日：2015-10-29

    申请号：US14440283

    申请日：2013-11-06

    申请人： BAE SYSTEMS PLC

    发明人： Jagjit Sidhu ,  Andrew David Wescott ,  Mark Alfred Potter

    IPC分类号： B22F3/105 ,  B23K9/095 ,  B23K9/04 ,  B22F7/04 ,  B23K26/34

    CPC分类号： B22F3/1055 ,  B22F7/04 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2007/042 ,  B23K9/04 ,  B23K9/0956 ,  B23K26/34 ,  B23K26/354 ,  B29C64/135 ,  B29C64/141 ,  B29C64/153 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295

    摘要： Apparatus and a method for forming a metallic component by additive layer manufacturing are provided. The method includes the steps of mounting a work piece (3) to ALM manufacturing apparatus including measuring means in the form of load cells (13, 14) to measure stresses tending to distort the work piece, using a laser heat source (24) to apply heat to a surface (18) of the work piece (3) sufficient to melt it; adding metallic material to the melted surface (18) and moving the heat source (24) relative to the work piece (3) whereby progressively to form a layer (30) of metallic material on it; repeating the above steps as required, whereby progressively to form the component and, while doing so, measuring stresses tending to distort the component with the load cells (13, 14) and, if they are above a predetermined threshold, stress relieving the work piece with means such as a pulsed laser (27) while still mounted to the apparatus to reduce distortion to a predetermined level, and again repeating above steps as required to complete the component. A computer (16) may be included to control the whole process.

    摘要翻译： 提供了通过添加剂层制造形成金属成分的装置和方法。 该方法包括以下步骤：将工件（3）安装到包括测力装置（13,14）形式的测量装置的ALM制造装置中，以测量倾向于使工件扭曲的应力，使用激光热源（24）至 对工件（3）的足以熔化其的表面（18）施加热量; 将金属材料添加到熔融表面（18）并相对于工件（3）移动热源（24），从而逐渐形成金属材料层（30）; 根据需要重复上述步骤，从而逐渐形成部件，并且在这样做的同时测量使用负载传感器（13,14）倾向于使部件变形的应力，并且如果它们高于预定阈值，则应力消除工件 具有诸如脉冲激光器（27）的装置，同时仍然安装到装置以将失真减小到预定水平，并且根据需要重复上述步骤以完成部件。 可以包括计算机（16）以控制整个过程。

    METHOD AND DEVICE FOR CONTROLLING AN IRRADIATION SYSTEM
    80.
    发明申请
    METHOD AND DEVICE FOR CONTROLLING AN IRRADIATION SYSTEM 有权
    用于控制辐射系统的方法和装置

    公开(公告)号：US20150158111A1

    公开(公告)日：2015-06-11

    申请号：US14555136

    申请日：2014-11-26

    申请人： SLM Solutions Group AG

    发明人： Dieter Schwarze ,  Henner Schoeneborn

    IPC分类号： B23K15/00 ,  B23K15/10 ,  B23K26/34 ,  B23K15/02

    CPC分类号： B23K15/004 ,  B22F3/1055 ,  B22F2003/1057 ,  B23K15/00 ,  B23K15/0086 ,  B23K15/02 ,  B23K15/10 ,  B23K26/144 ,  B23K26/34 ,  B23K26/60 ,  B23K26/702 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295

    摘要： In a method for controlling an irradiation system (20) for use in an apparatus (10) for producing a three-dimensional work piece and comprising a first and a second irradiation unit (22a, 22b) a first irradiation area (18a) is defined on a surface of a carrier (16) adapted to receive a layer of raw material powder. A layer of raw material powder applied onto the carrier (16) in the first irradiation area (18a) is irradiated by the first irradiation unit (22a) of the irradiation system (20), wherein the operation of the first irradiation unit (22a) is controlled in such a manner that the raw material powder is pre-heated. Thereafter the layer of raw material powder applied onto the carrier (16) in the first irradiation area (18a) is irradiated by means of the second irradiation unit (22b) of the irradiation system (20), wherein the operation of the second irradiation unit (22b) is controlled in such a manner that the raw material powder is heated to a temperature which allows sintering and/or melting of the raw material powder in order to generate a layer of the three-dimensional work piece.

    摘要翻译： 在用于控制用于制造三维工件的装置（10）中并包括第一和第二照射单元（22a，22b）的照射系统（20）的方法中，限定第一照射区域（18a） 在适于容纳原料粉末层的载体（16）的表面上。 通过照射系统（20）的第一照射单元（22a）照射施加到第一照射区域（18a）中的载体（16）上的原料粉末层，其中第一照射单元（22a）的操作 以使原料粉末预热的方式进行控制。 此后，通过照射系统（20）的第二照射单元（22b）照射施加到第一照射区域（18a）中的载体（16）上的原料粉末层，其中第二照射单元 （22b）以使原料粉末被加热到允许原料粉末的烧结和/或熔化的温度以便生成三维工件层的温度来控制。