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1. 发明授权

US5155329A Monitoring method and system for laser beam welding 失效
标题翻译：用于激光束焊接的监测方法和系统
公开(公告)号：US5155329A
公开(公告)日：1992-10-13
申请号：US638533
申请日：1991-01-08
申请人： Kunio Terada , Osa Matsumoto , Yasumi Nakura , Takashi Ishide , Tadashi Nagashima , Shigeo Hashimoto
发明人： Kunio Terada , Osa Matsumoto , Yasumi Nakura , Takashi Ishide , Tadashi Nagashima , Shigeo Hashimoto
IPC分类号： B23K26/00 , B23K26/03 , B23K26/08
CPC分类号： B23K26/032 , B23K31/125
摘要： In a method for monitoring laser beam welding, a sequential signal representing a laser oscillating wave form is received, light of a predetermined wavelength in the light emitted from the weld zone is received, and the two signals thus received are processed to determine the minimum intensity of the light of the predetermined wavelength and thereby accurately deduce welding beam input and penetration of welding. An apparatus used in practicing the monitoring method includes a monitoring optical fiber for receiving and transmitting the light emitted from a weld being made on a workpiece, an interference filter for selectively passing light of a predetermined wavelength, and a processing device for determining an intensity of the light of the predetermined wavelength.

2. 发明授权

US4839495A Laser beam welding apparatus for an inner circumferential surface of a tube 失效
标题翻译：用于管的内圆周表面的激光束焊接装置
公开(公告)号：US4839495A
公开(公告)日：1989-06-13
申请号：US222170
申请日：1988-07-21
申请人： Takuya Kitera , Shoichi Urushibata , Masatoshi Sato , Tadashi Nagashima , Shoichi Hamada , Isao Shirasu , Yasumi Nakura , Michito Sakamoto , Takashi Ishide , Naruo Sakamoto , Masahiko Meka , Masaru Tomeoka
发明人： Takuya Kitera , Shoichi Urushibata , Masatoshi Sato , Tadashi Nagashima , Shoichi Hamada , Isao Shirasu , Yasumi Nakura , Michito Sakamoto , Takashi Ishide , Naruo Sakamoto , Masahiko Meka , Masaru Tomeoka
IPC分类号： B23K26/14 , B23K26/28
CPC分类号： B23K26/106 , B23K26/0665 , B23K26/123 , B23K26/142 , B23K26/1438 , B23K26/1476 , B23K26/206 , B23K26/282
摘要： An improved laser beam welding apparatus for an inner circumferential surface of a tube is disclosed herein, which apparatus comprises an elongated flexible tube containing an optical fiber extended along the length thereof so as to transmit a laser beam, position detecting means disposed in the vicinity of the top end of the flexible tube to determine relative positioning thereof with respect to a work tube in which the flexible tube is inserted, holding means provided with an expander and disposed adjacent to the position detecting means for holding the tip end of the flexible tube in the work tube, rotary drive means disposed closer to the tip end of the flexible tube than the holding means, a rotary cylinder connected to the rotary drive means to be rotated with respect to the flexible tube, guide means mounted on the rotary cylinder in a relatively rotatable manner with respect to the rotary cylinder and held in contact with the inner surface of the work tube for supporting the rotary cylinder in a concentric relation to the work tube, and an optical train arranged with the rotary cylinder for receiving a laser beam emitted from the optical fiber and focusing a reflected laser beam onto the inner surface of the work tube.

3. 发明授权

US06600133B2 Welding system 有权
标题翻译：焊接系统
公开(公告)号：US06600133B2
公开(公告)日：2003-07-29
申请号：US10009442
申请日：2001-12-10
申请人： Masao Watanabe , Hideshi Sakashita , Tadashi Nagashima , Takashi Ishide , Kenji Nishikawa
发明人： Masao Watanabe , Hideshi Sakashita , Tadashi Nagashima , Takashi Ishide , Kenji Nishikawa
IPC分类号： B23K900
CPC分类号： B23K26/0608 , B23K9/0043 , B23K9/025 , B23K26/067 , B23K26/348 , B23K28/02 , B23K37/0408 , B23K2101/18 , B23K2101/185 , B23K2103/04
摘要： In a welding system for performing butt welding which comprises butting the end surfaces of steel plates, materials to be welded, placed on the upper surface of a table of a welding stage and welding the end surfaces together, a welding head is a laser/arc combined welding head for simultaneously performing laser light irradiation and arc discharge of the materials 38 to be welded, thereby welding the materials to be welded, and the position of an arc electrode 40 in an up-and-down direction relative to the materials 38 to be welded, the position of the arc electrode in a direction perpendicular to the direction of the optical axis of laser light 32 applied to the materials 38 to be welded, and the inclination angle of the arc electrode relative to the optical axis of the laser light 32 can be adjusted.
摘要翻译：在用于进行对接焊接的焊接系统中，焊接装置包括将钢板的端面，待焊接的材料对准，放置在焊接台的台面的上表面上并将端面焊接在一起，焊接头是激光/电弧用于同时进行激光照射和待焊接材料38的电弧放电的组合焊接头，从而焊接待焊接的材料，以及电弧电极40相对于材料38在上下方向上的位置为焊接时，电弧电极在与施加到被焊接材料38上的激光光轴方向垂直的方向上的位置以及电弧电极相对于激光32的光轴的倾斜角度可以调整。

4. 发明授权

US06294754B1 Laser beam machining head 有权
标题翻译：激光加工头
公开(公告)号：US06294754B1
公开(公告)日：2001-09-25
申请号：US09429079
申请日：1999-10-29
申请人： Yasumi Nagura , Michisuke Nayama , Takashi Ishide , Yoshio Hashimoto , Yukio Michishita , Koji Okimura , Tadashi Nagashima , Masao Watanabe , Takashi Akaba , Katsusuke Shimizu
发明人： Yasumi Nagura , Michisuke Nayama , Takashi Ishide , Yoshio Hashimoto , Yukio Michishita , Koji Okimura , Tadashi Nagashima , Masao Watanabe , Takashi Akaba , Katsusuke Shimizu
IPC分类号： B23K26067
CPC分类号： B23K26/0604 , B23K26/0608 , B23K26/067 , B23K26/142 , B23K26/1438 , B23K26/1476 , B23K26/16 , B23K26/348
摘要： In a laser beam machine head, when a filler wire and an optical axis of a laser beam are arranged coaxially, a convex roof mirror and a concave roof mirror are combined to divide the laser beam into two separate laser beams to that no laser beam is projected onto a filler wire feed pipe. Furthermore, the filler wire is fed from outside the laser beams to a condensing position via a filler wire guide in the spacing between the separate laser beams, or an electrode supported by a water flow pipe or an electrode holding pipe is brought close to the condensing position.
摘要翻译：在激光束机头中，当激光束的填充线和光轴同轴布置时，组合凸面屋顶反射镜和凹面屋顶反射镜将激光束分成两束分开的激光束，使得激光束不是投射到填料焊丝进料管上。此外，填充线从激光束的外侧经由填充线引导件以分离的激光束之间的间隔被馈送到聚光位置，或者由水流管或电极保持管支撑的电极接近冷凝位置。

5. 发明授权

US5097110A Reflecting mirror for a laser beam and laser beam welding apparatus, including the same laser beam reflecting mirror 失效
标题翻译：用于激光束和激光束焊接装置的反射镜，包括相同的激光束反射镜
公开(公告)号：US5097110A
公开(公告)日：1992-03-17
申请号：US558238
申请日：1990-07-26
申请人： Shoichi Hamada , Isao Shirasu , Tadashi Nagashima , Takashi Akaba , Shuhei Kuri , Takuya Kidera , Yasumi Nagura , Seiichi Kawaguchi , Takashi Ishide , Yoshio Hashimoto
发明人： Shoichi Hamada , Isao Shirasu , Tadashi Nagashima , Takashi Akaba , Shuhei Kuri , Takuya Kidera , Yasumi Nagura , Seiichi Kawaguchi , Takashi Ishide , Yoshio Hashimoto
IPC分类号： B23K26/06 , B23K26/10 , B23K26/14 , B23K26/28 , B23K37/02 , G02B5/08 , G02B5/28
CPC分类号： B23K37/0276 , B23K26/0643 , B23K26/106 , B23K26/142 , B23K26/1476 , B23K26/282 , G02B5/0808 , G02B5/0858 , G02B5/282 , B23K2201/06 , B23K2201/14
摘要： The known reflecting mirror for a laser beam conisting of a mirror base member and a high-reflectivity metal coating layer formed on the mirror base member for reflecting a laser beam, is improved so as to maintain a high mirror reflectivity without necessitating a cooling facility. The improvements reside in that a coating layer having a small diffusion coefficient is provided on the back surface side of the high-reflectivity metal coating layer, and/or in that at least one layer of dielectric coating layer or layers are provided on the surface of the high reflectivity metal coating layer. Also, an improved laser beam welding apparatus for an inner circumferential surface of a tube is provided by employing the aforementioned improved reflection mirror as a reflecting mirror in an optical condensing system included in a laser beam welding apparatus for an inner circumferential surface of a tube, which apparatus comprises a flexible tube including an optical fiber extended therethrough for transmitting a welding laser beam, said flexible tube being insertable into a work tube, a position detector for detecting a relative position of the flexible tube with respect to the work tube and fixing means of internally expansible type for fixing the flexible tube within the work tube, respectively provided at the front end portion of the flexible tube, a rotary cylinder rotatably supported from the flexible tube, guide support means mounted to the rotary cylinder in a relatively rotatable manner and being able to be held in contact with the inner wall surface of the work tube for holding the rotary cylinder concentrically with the work tube, rotary drive means having its output shaft disposed coaxially with said rotary cylinder for rotationally driving the rotary cylinder, an optical condensing system disposed within said rotary cylinder for leading the welding laser beam emanating from the front end of the optical fiber to the inner wall surface of the work tube in a condensed state, gas scavenging means for discharging metal vapor produced upon welding of the work tube, and gas cooling means for cooling the optical condensing system.

6. 发明授权

US06664507B2 Laser machining apparatus 有权
公开(公告)号：US06664507B2
公开(公告)日：2003-12-16
申请号：US09926680
申请日：2001-11-30
申请人： Takashi Akaba , Tadashi Nagashima , Takashi Ishide , Syuhou Tsubota
发明人： Takashi Akaba , Tadashi Nagashima , Takashi Ishide , Syuhou Tsubota
IPC分类号： B23K9095
CPC分类号： B23K26/0608 , B23K26/0604 , B23K26/067 , B23K26/08 , B23K26/082 , B23K26/348
摘要： Control is exercised such that an arc discharge from a GMA electrode is performed after or simultaneously with start of oscillation of laser light from a laser oscillator, and oscillation of the laser light from the laser oscillator is stopped after or simultaneously with termination of the arc discharge from the GMA electrode. A coaxial laser beam machining head is configured such that the GMA electrode is disposed in a space portion between a first divisional laser beam and a second divisional laser beam, which have been formed by division by first and second reflecting mirrors, coaxially with the laser beams. Alternatively, the coaxial laser beam machining head is configured such that the GMA electrode is disposed in a space portion, which has been formed in a body of laser light by withdrawing part of the laser light outwardly with the use of first and second reflecting mirrors, coaxially with the body of the laser light.

7. 发明授权

US6034343A Hybrid welding apparatus 有权
标题翻译：混合焊接设备
公开(公告)号：US6034343A
公开(公告)日：2000-03-07
申请号：US148494
申请日：1998-09-04
申请人： Yoshio Hashimoto , Takashi Ishide
发明人： Yoshio Hashimoto , Takashi Ishide
IPC分类号： B23K9/173 , B23K9/12 , B23K9/32 , B23K26/00 , B23K26/06 , B23K26/14 , B23K26/20 , B23K28/02
CPC分类号： B23K26/1429
摘要： A hybrid welding apparatus for subjecting a base metal to gas-shielded arc welding and laser welding comprises a laser generator for emitting a laser beam and a condenser optical system for condensing the laser beam to laser weld the base metal. The condenser optical system includes a plurality of lenses, each having a hole portion in the center thereof. A tubular supply holder for supplying a welding wire is passed through these respective hole portions of the lenses and located substantially coaxially with the axis of the condenser optical system. The laser beam and welding wire to be applied to the base metal are arranged coaxially, so that laser-welding and arc-shielded welding can be simultaneously performed with a wide angle between the welding head and a bevel of the base metal, thereby deepening penetration of the weld at an increased welding speed.
摘要翻译：用于对母材进行气体保护电弧焊和激光焊接的混合焊接装置包括用于发射激光束的激光发生器和用于使激光束聚光以激光焊接母材的聚光器光学系统。聚光镜系统包括多个透镜，每个透镜在其中心具有孔部分。用于供应焊丝的管状供应保持器穿过透镜的这些相应的孔部分，并且与冷凝器光学系统的轴线基本同轴地定位。施加到母材的激光束和焊丝同轴地布置，从而能够以焊接头与母材的斜面之间的广角同时进行激光焊接和电弧保护焊接，从而加深穿透的焊接速度。

8. 发明申请

US20070175873A1 Apparatus for improving residual stress of piping technical field 有权
标题翻译：改善管道技术领域残余应力的装置
公开(公告)号：US20070175873A1
公开(公告)日：2007-08-02
申请号：US10590902
申请日：2005-07-28
申请人： Takashi Akaba , Shuho Tsubota , Kenji Nishikawa , Noriaki Sugimoto , Shoji Kushimoto , Takashi Ishide , Takahiro Ohta
发明人： Takashi Akaba , Shuho Tsubota , Kenji Nishikawa , Noriaki Sugimoto , Shoji Kushimoto , Takashi Ishide , Takahiro Ohta
IPC分类号： B23K26/08
CPC分类号： C21D1/09 , B23K26/0884 , B23K26/103 , B23K26/352 , B23K2101/06 , C21D1/30 , C21D1/34 , C21D9/08 , C21D9/50
摘要： A weld zone of T-piping and its neighborhood are efficiently laser-heated to remove residual stress. For this purpose, the weld zone of a T-piping (50) is irradiated and heated with a laser beam emitted from a laser head (10) to remove residual stress. At this time, a rotating travel cart (3) travels along a ring rail (2) to adjust the position of the laser head (10) in a θ-direction, a vertical slide (4) slides to adjust the position of the laser head (10) in a Z-direction, a radial slide (5) slides to adjust the position of the laser head (10) in an L-direction, an arcuate piece slide (7) slides along an arcuate piece to adjust the α-direction of the laser head (10), a laser head support portion (9) turns to adjust the β-direction of the laser head (10), and oscillation adjusts the position of the laser head (10) in a γ-direction.
摘要翻译： T管道及其附近的焊接区域被有效地激光加热以去除残余应力。为此目的，用从激光头（10）发射的激光束照射和加热T型管（50）的焊接区域以消除残余应力。此时，旋转旅行车（3）沿着环形轨道（2）行进，以在θ方向上调整激光头（10）的位置，垂直滑动件（4）滑动以调节激光器的位置头部（10）沿Z方向滑动，径向滑动件（5）滑动以调节激光头（10）在L方向上的位置，弓形片滑动件（7）沿弓形件滑动以调节α 激光头（10）的方向，激光头支撑部（9）转动以调节激光头（10）的β方向，并且振动调整激光头（10）在γ方向上的位置。

9. 发明授权

US06608281B2 Laser beam machining head and laser beam machining apparatus having same 有权
公开(公告)号：US06608281B2
公开(公告)日：2003-08-19
申请号：US09925464
申请日：2001-08-10
申请人： Takashi Ishide , Yoshio Hashimoto , Masao Watanabe , Takashi Akaba , Daijiro Fujie
发明人： Takashi Ishide , Yoshio Hashimoto , Masao Watanabe , Takashi Akaba , Daijiro Fujie
IPC分类号： B23K2636
CPC分类号： B23K26/0608 , B23K26/0604 , B23K26/067 , B23K26/082 , B23K26/0884 , B23K26/144 , B23K26/1476 , B23K26/348
摘要： A coaxial laser beam machining head, and a laser beam machining apparatus having it are provided. The head is small in size, free from the risk of damaging optical instruments, and inexpensive. The head comprises a collimating lens array, a first reflecting mirror for dividing laser light into a first divisional laser beam and a second divisional laser beam, a second reflecting mirror for further reflecting the first divisional laser beam to form a space portion between both divisional laser beams, a focusing lens array for focusing both divisional laser beams onto a portion to be welded, and a GMA electrode disposed in the space portion coaxially with the laser beams; or comprises a collimating lens array, a first reflecting mirror for reflecting part of laser light to form a space portion in a body of the laser light, a second reflecting mirror for further reflecting the part of the laser light, a focusing lens array for focusing the body of the laser light and the part of the laser light onto a portion to be welded, and a GMA electrode disposed in the space portion coaxially with the body of the laser light.

10. 发明授权

US06417487B2 Laser beam machining head 有权
标题翻译：激光加工头
公开(公告)号：US06417487B2
公开(公告)日：2002-07-09
申请号：US09920823
申请日：2001-08-03
申请人： Yasumi Nagura , Michisuke Nayama , Takashi Ishide , Yoshio Hashimoto , Yukio Michishita , Koji Okimura
发明人： Yasumi Nagura , Michisuke Nayama , Takashi Ishide , Yoshio Hashimoto , Yukio Michishita , Koji Okimura
IPC分类号： B23K2614
CPC分类号： B23K26/0604 , B23K26/0608 , B23K26/067 , B23K26/142 , B23K26/1438 , B23K26/1476 , B23K26/16 , B23K26/348
摘要： A laser beam machining head includes a dividing optical system for dividing laser light into two separate laser beams, and providing spacing therebetween; a condensing optical system for condensing the separate laser beams into condensed laser light, and projecting it onto a cutting site of an object to be cut; and an inner assist gas nozzle placed between the separate laser beams, a width of an opening of a tip portion of the inner assist gas nozzle being nearly equal to a cutting width. Or the tip opening of the inner assist gas nozzle is slender; or its tip side is inclined, and the angle of inclination is variable; or the relative positions of the inner assist gas nozzle and a workpiece, or the relative positions of the focal position of the condensing optical system and the workpiece are variable independently; or an outer assist gas nozzle surrounding the separate laser beams is provided.
摘要翻译：激光加工头包括用于将激光分成两个分开的激光束并在其间提供间隔的分割光学系统; 聚光光学系统，用于将分离的激光束聚集成冷凝的激光，并将其投影到待切割的物体的切割位置上; 以及设置在分离的激光束之间的内部辅助气体喷嘴，内部辅助气体喷嘴的前端部分的开口的宽度几乎等于切割宽度。或者内辅助气嘴的前端开口细长; 或其尖端侧倾斜，并且倾斜角度是可变的; 或内辅助气体喷嘴和工件的相对位置，或聚光光学系统和工件的焦点位置的相对位置是独立变化的; 或围绕分离的激光束的外部辅助气体喷嘴。

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