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公开(公告)号：US5218258A
公开(公告)日：1993-06-08
申请号：US754516
申请日：1991-09-04
申请人： Isao Shirasu , Takashi Akaba , Tadashi Nagashima , Yoshimasa Tsukamoto , Kyoichi Yoshioka , Toshiiku Sashida
发明人： Isao Shirasu , Takashi Akaba , Tadashi Nagashima , Yoshimasa Tsukamoto , Kyoichi Yoshioka , Toshiiku Sashida
CPC分类号： H02N2/16 , B23K26/282
摘要： A small-sized ultrasonic motor can produce a high torque and a stable turning force. The ultrasonic motor has: a cylindrical casing, a hollow output shaft extending coaxially through the cylindrical casing supported rotatably by the casing a ring-like stator fixedly mounted on the inner surface of the cylindrical casing having piezoelectric elements fixed on the back surface thereof, a ring-like rotor mounted on the hollow output shaft and facing the front surface of the stator, and springs for pushing the rotor toward the stator. Also disclosed is a laser beam welding apparatus for welding the inner circumferential surface of a tube by using the ultrasonic motor.
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2.发明授权Reflecting mirror for a laser beam and laser beam welding apparatus, including the same laser beam reflecting mirror 失效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
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.
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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。
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公开(公告)号：US06664507B2
公开(公告)日：2003-12-16
申请号：US09926680
申请日：2001-11-30
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.
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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 。
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公开(公告)号：US06608281B2
公开(公告)日：2003-08-19
申请号：US09925464
申请日：2001-08-10
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.
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7.发明授权公开(公告)号：US08362393B2
公开(公告)日：2013-01-29
申请号：US12596308
申请日：2007-04-20
申请人： Takahiro Ota , Shuho Tsubota , Takashi Ishide , Kazuhiko Kamo , Noriaki Sugimoto , Yoshiyuki Hemmi , Hironori Onitsuka , Takashi Akaba
发明人： Takahiro Ota , Shuho Tsubota , Takashi Ishide , Kazuhiko Kamo , Noriaki Sugimoto , Yoshiyuki Hemmi , Hironori Onitsuka , Takashi Akaba
CPC分类号： C21D9/08 , B23K26/0006 , B23K26/067 , B23K26/0676 , B23K26/0823 , B23K26/352 , B23K2101/06 , B23K2103/04 , B23K2103/05 , B23K2103/18 , B23K2103/26 , B23K2103/50 , C21D1/09 , C21D1/30 , C21D1/34 , C21D9/50
摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When an outer-circumferential surface of a welded portion of a cylindrical tubular body (2) is irradiated with a laser beam that circles around an outer circumference of the tubular body (2), a heating width W in a circumferential direction heated by the laser-beam irradiation and a laser-beam moving speed V in the circumferential direction are set so that a stress in the circumferential direction in an inner surface of the tubular body (2) produced by the heating with the laser beam is at least larger than a yielding stress of a material that the tubular body (2) is made of.
摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当圆筒形管体（2）的焊接部分的外圆周表面照射围绕管状体（2）的外周的激光束时，由激光器加热的圆周方向上的加热宽度W 光束照射和周向上的激光束移动速度V被设定为使得通过用激光束加热而产生的管状体（2）的内表面中的圆周方向的应力至少大于 产生管状体（2）制成的材料的应力。
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公开(公告)号：US08044323B2
公开(公告)日：2011-10-25
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
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，以将激光头（10）的位置调整在一个方向上，一个垂直滑动件（4）滑动以调节该位置 激光头（10）在Z方向上，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）沿着弓形件滑动以调节 激光头（10）的α方向，激光头支撑部（9）转动以调整激光头（10）的方向，并且振荡将激光头（10）的位置调整为γ -方向。
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9.发明申请公开(公告)号：US20100122972A1
公开(公告)日：2010-05-20
申请号：US12598804
申请日：2008-05-30
IPC分类号： B23K26/02
CPC分类号： B23K26/0344 , B23K26/03 , B23K26/0643 , B23K26/0648 , B23K26/0869 , B23K26/352 , B23K31/00 , B23K2101/06 , C21D1/30 , C21D1/34 , C21D9/08 , C21D9/50 , G02B6/422
摘要： Aims are to provide a tubular-body residual-stress improving apparatus and an adjustment method thereof capable of adjusting irradiation position with favorable reproducibility, even when an optical fiber is eccentric. In the tubular-body residual-stress improving apparatus, an optical control unit (5) includes a rotational hold mechanism (9) for holding an optical fiber (6) in a manner that the optical fiber (6) is rotatable in a circumferential direction of the optical fiber (6), and, if a position of an intensity peak of the laser beam from the optical fiber (6) in an axial direction of the tubular body (2) is offset from the center of an irradiation profile, a position at which the optical fiber (6) is held in the circumferential direction is adjusted by the rotational hold mechanism (9) so as to eliminate the offset or to minimize an influence of the offset.
摘要翻译： 目的在于提供即使在光纤偏心的情况下也能以良好的再现性调节照射位置的管状体残余应力改善装置及其调整方法。 在管状体残余应力改善装置中，光学控制单元（5）包括用于保持光纤（6）的旋转保持机构（9），使得光纤（6）能够沿圆周方向 ，并且如果来自所述光纤（6）的激光束在所述管状体（2）的轴向方向上的强度峰值的位置偏离所述照射轮廓的中心，则 通过旋转保持机构（9）调节光纤（6）在圆周方向上保持的位置，以消除偏移或使偏移的影响最小化。
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公开(公告)号：US07485828B2
公开(公告)日：2009-02-03
申请号：US10591120
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： B23K26/103 , B23K26/067 , B23K26/0676 , B23K26/0869 , B23K26/352 , B23K2101/06 , B23K2101/10
摘要： A residual stress improving apparatus for piping, which can heat an outer peripheral surface of piping to reduce (including eliminate) the residual stress of the piping is provided. The apparatus has a laser head portion, and circumferential direction moving mechanism composed of a ring rail and a rotational travel bogie. Further, the apparatus may adjust the reflection direction of laser light so that the laser light reflected by the outer peripheral surface of the piping does not return to the laser head, and adjust the delivery direction of the laser light so that the outer peripheral surface of the bending pipe portion located forwardly, in the pipe axis direction, of the laser head is irradiated with the laser light.
摘要翻译： 提供一种用于管道的残余应力改善装置，其可以加热管道的外周表面以减少（包括消除）管道的残余应力。 该装置具有激光头部分和由环形轨道和旋转行驶转向架组成的圆周方向移动机构。 此外，该装置可以调节激光的反射方向，使得由管道的外周面反射的激光不返回到激光头，并且调节激光的传送方向，使得外部 在激光头的管轴方向上位于前方的弯曲管部照射激光。
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