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1. 发明公开

EP3871299A1 ULTRAHIGH FIBER LASER SYSTEM WITH CONTROLLABLE OUTPUT BEAM INTENSITY PROFILE 审中-实审
公开(公告)号：EP3871299A1
公开(公告)日：2021-09-01
申请号：EP19893269.1
申请日：2019-12-03
申请人： IPG Photonics Corporation
发明人： SCHERBAKOV, Eugene , FOMIN, Valentin , ABRAMOV, Andrey , ABRAMOV, Mikhail , YAGODKIN, Dmitri
IPC分类号： H01S3/067 , H01S3/101 , H01S5/40

2. 发明公开

EP3357628A1 LASER WELDING GUN 有权
公开(公告)号：EP3357628A1
公开(公告)日：2018-08-08
申请号：EP17179226.0
申请日：2013-10-21
申请人： IPG Photonics Corporation , Volkswagen AG
发明人： FOMIN, Valentin , STAROVOYTOV, Anton , ARRAMOV, Andrey , GAPONTSEV, Valentin , FUCHS, Artjom , SCHRAMM, Ingo , SCHERBAKOV, Eugene , MAMEROW, Holger , MICHALZIK, Andreas
IPC分类号： B23K26/24 , B23K26/00 , B23K26/03 , B23K26/14 , B23K26/22 , B23K26/142 , B23K26/082 , B23K26/70
CPC分类号： B23K26/0096 , B23K26/032 , B23K26/082 , B23K26/142 , B23K26/22 , B23K26/24 , B23K26/705
摘要： A hand maneuverable laser welding gun for joining metal pieces with a weld of predetermined strength, comprising a laser source, at least one arm provided with an interior which forms a tunnel configured to guide the laser light towards a welding zone to produce the weld, a light trap located on the back side of the welding zone, a light sensor coupled to the trap and operative to detect light, which propagates through the welding zone and output a signal upon detecting the light, and a controller to adjust the power of the beam to produce the weld of the predetermined strength. A welding gun can be equipped with an elongated support column and an optical head axially displaceable along the support column as well as with a first arm mounted to the support column along the path and movable with the head to a welding position in which the arm presses against a front metal piece for joining metal pieces spaced from one another.

3. 发明授权

EP2908979B1 HAND MANEUVERABLE LASER WELDING GUN 有权
标题翻译：手持式激光焊枪
公开(公告)号：EP2908979B1
公开(公告)日：2017-08-09
申请号：EP13847453.1
申请日：2013-10-21
申请人： IPG Photonics Corporation , Volkswagen Aktiengesellschaft
发明人： FOMIN, Valentin , STAROVOYTOV, Anton , ABRAMOV, Andrey , GAPONTSEV, Valentin , FUCHS, Artjom , SCHRAMM, Ingo , SCHERBAKOV, Eugene , MAMEROW, Holger , MICHALZIK, Andreas
IPC分类号： B23K26/24 , B23K26/00 , B23K26/03 , B23K26/14 , B23K26/22 , B23K26/142 , B23K26/082 , B23K26/70
CPC分类号： B23K26/0096 , B23K26/032 , B23K26/082 , B23K26/142 , B23K26/22 , B23K26/24 , B23K26/705
摘要： A hand displaceable laser welding gun is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head axially which is provided with optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head. The laser welding gun further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the gun diametrically opposite to the optical head. The inner surface of the displaceable arm has an inner surface defining a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column. The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris flowing within the tunnel to the optical head.
摘要翻译：手动可移动激光焊枪配置有沿纵向轴线延伸并由轻质材料制成的细长支撑柱。支撑板可移动地安装到柱上，同时在其上支撑设置有光学器件的轴向光学头。光学器件被配置为将激光束沿着通过光学头的保护窗口的路径导向焊接区域。该激光焊枪的结构还包括一个安装在支撑板上的第一臂，该第一臂沿着与光学头直径上相对的枪的纵轴延伸。可移动臂的内表面具有限定隧道的内表面，该隧道与光学头对齐并且被激光束轴向穿过，加压气态介质的第一轴向流动流和气态介质的第二轴向流动流。响应于塔中产生的压力梯度，以低于第一流的压力进入隧道的第二流不会在塔内产生涡流。第一和第二液流通过靠近焊接区域的隧道的下游端。随着气流流出，它们将在隧道内流动的焊渣运送到光学头。

4. 发明公开

EP3479444A1 FIBER LASER SYSTEM WITH MECHANISM FOR INDUCING PARASITIC LIGHT LOSSES 有权
公开(公告)号：EP3479444A1
公开(公告)日：2019-05-08
申请号：EP17821331.0
申请日：2017-06-30
申请人： IPG Photonics Corporation
发明人： MASHKIN, Andrey , FOMIN, Valentin , SHCHERBINA, Fedor , DRONOV, Alexander , ABRAMOV, Andrey , MIRONOV, Vadim , SCHERBAKOV, Eugene
IPC分类号： H01S3/067

5. 发明公开

EP2908978A1 ROBOTIC LASER SEAM STEPPER 有权
标题翻译： ROBOTISCHER LASERNAHTSTEPPER
公开(公告)号：EP2908978A1
公开(公告)日：2015-08-26
申请号：EP13846880.6
申请日：2013-10-21
申请人： IPG Photonics Corporation
发明人： FOMIN, Valentin , STAROVOYTOV, Anton , ABRAMOV, Andrey , GAPONTSEV, Valentin , FUCHS, Artjom , SCHRAMM, Ingo , SCHERBAKOV, Eugene , MAMEROW, Holger
IPC分类号： B23K26/08 , B23K26/24 , B23K26/00 , B23K26/02
CPC分类号： B23K26/0884 , B23K26/032 , B23K26/0626 , B23K26/142 , B23K26/1462 , B23K26/22
摘要： A robotically operated laser seam stepper is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head which is provided with optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head. The laser seam stepper further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the stepper diametrically opposite to the optical head. The inner surface of the displaceable arm defines a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and by a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column. The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris from the tunnel.

6. 发明公开

EP3797456A1 ACTIVE WAVEGUIDE FOR HIGH-POWER LASER 审中-公开
公开(公告)号：EP3797456A1
公开(公告)日：2021-03-31
申请号：EP19826028.3
申请日：2019-06-28
申请人： IPG Photonics Corporation
发明人： SCHERBAKOV, Eugene , FOMIN, Valentin , ABRAMOV, Andrey , DORONKIN, Aleksey
IPC分类号： H01S3/067

7. 发明公开

EP3302868A2 MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING 有权
标题翻译：多波束激光系统和焊接方法
公开(公告)号：EP3302868A2
公开(公告)日：2018-04-11
申请号：EP16808024.0
申请日：2016-05-26
申请人： IPG Photonics Corporation
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： B23K26/067 , B23K26/0604 , B23K26/21 , B23K26/22 , B23K26/24 , B23K26/32 , B23K26/322 , B23K2101/006 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/10 , 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.

8. 发明公开

EP3078087A1 HIGH POWER HIGH EFFICIENCY FIBER LASER AND METHOD FOR OPTIMIZING WALL PLUG EFFICIENCY THEREOF 审中-公开
标题翻译： FOR优化墙的高效率高光纤激光器和方法锚索其效率
公开(公告)号：EP3078087A1
公开(公告)日：2016-10-12
申请号：EP14868071.3
申请日：2014-12-02
申请人： IPG Photonics Corporation
发明人： GAPONTSEV, Valentin , FOMIN, Valentin , SCHERBAKOV, Eugene , OVTCHINNIKOV, Alex , FERIN, Anton , ABRAMOV, Andrey
IPC分类号： H01S3/067
CPC分类号： H01S3/0675 , H01S3/094069 , H01S3/0941 , H01S3/1618
摘要： The inventive laser is configured with a plurality of pigtailed multimode (MM) diode lasers each receiving a direct input current at a room temperature which is maintained to be within a 20-25° C inside the housing of the laser. The diode lasers each are configured to operate at a desired wavelength in an optimal operational range, in which the diode laser operates with a WPE range between 63% and 75%. The direct current inputted in each diode laser is selected to be below a threshold at an efficiency curve of the diode laser after which the efficiency of the diode laser starts decreasing while an output power of the diode laser continues to increase. The laser is further configured with a fiber gain block having an active fiber medium which is pumped with the cumulative pump output and operative to emit a laser output in a power range between hundreds of watts and tens and even hundreds of kilowatts at the desired wavelength in an optimal operation range. The optimal operational ranges of respective MM diode lasers and fiber gain block are matched to achieve a superposition of respective efficiency maximums providing an overall maximum system efficiency up to 55%.
摘要翻译：本发明的激光被配置成与尾纤多模（MM）二极管每接收一个直流输入电流，在室温下所有这些被保持为20℃至25℃内的激光的壳体内的激光器复数。所述二极管激光器的每个被配置为以在所需的最佳操作范围内的波长，其中，所述二极管激光器与63％和75％之间的WPE范围运行操作。在每个激光二极管输入的直流电流被选择为低于阈值处afterwhich二极管激光器的效率在激光二极管的输出功率开始降低而持续增加二极管激光器的效率曲线。激光进一步与具有有源光纤介质上的光纤增益块中的所有被泵与所述累积泵输出和操作在希望的波长发射在瓦和几十千瓦甚至狗红色的狗红色之间的功率范围内的激光输出被配置在最佳的操作范围。 respectivement MM二极管激光器和光纤增益块的最佳操作范围相匹配，以实现respectivement效率的最大值提供至整体最大系统效率高达55％的叠加。

9. 发明公开

EP2908979A1 HAND MANEUVERABLE LASER WELDING GUN 有权
标题翻译： HANDMANÖVRIERBARE激光焊接枪
公开(公告)号：EP2908979A1
公开(公告)日：2015-08-26
申请号：EP13847453.1
申请日：2013-10-21
申请人： IPG Photonics Corporation , Volkswagen Aktiengesellschaft
发明人： FOMIN, Valentin , STAROVOYTOV, Anton , ABRAMOV, Andrey , GAPONTSEV, Valentin , FUCHS, Artjom , SCHRAMM, Ingo , SCHERBAKOV, Eugene , MAMEROW,Holger , MICHALZIK, Andreas
IPC分类号： B23K26/24
CPC分类号： B23K26/0096 , B23K26/032 , B23K26/082 , B23K26/142 , B23K26/22 , B23K26/24 , B23K26/705
摘要： A hand displaceable laser welding gun is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head axially which is provided with optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head. The laser welding gun further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the gun diametrically opposite to the optical head. The inner surface of the displaceable arm has an inner surface defining a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column. The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris flowing within the tunnel to the optical head.

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