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81. 发明专利

JPH01306092A SHEATH AT OUTGOING END OF OPTICAL FIBER FOR LASER BEAM MACHINING 失效
公开(公告)号：JPH01306092A
公开(公告)日：1989-12-11
申请号：JP13644988
申请日：1988-06-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGURA YASUMI , SAKAMOTO MICHITO , ISHIDE TAKASHI , NAGASHIMA TADASHI
IPC分类号： B23K26/064
摘要： PURPOSE:To reflect reflected beam from a working surface and to prevent an outgoing end part of optical fiber from breaking by coating the sheath surface opposite to a work piece at the outgoing end part of optical fiber with material having a high reflectance to laser beam. CONSTITUTION:The whole surface of copper sheath 8 at an outgoing part of optical fiber 4 is coated by gilding, silvering or deposition, etc., to reflect the reflected beam again and to prevent the optical fiber 4 from breaking. A ring of material easy to transmit or disperse the laser beam such as silica glass, sapphire, is laid at the neighborhood of the outgoing end part of optical fiber to reduce energy density by transmission or dispersion of reflected beams high in energy density and to prevent the fiber 4 from breaking. Further, when the above two methods are used at the same time, the failure-proof function at the outgoing end of the optical fiber can be improved.

82. 发明专利

JPS6427789A METHOD FOR WELDING PIPE INTERIOR BY LASER BEAM 失效
公开(公告)号：JPS6427789A
公开(公告)日：1989-01-30
申请号：JP18196087
申请日：1987-07-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： KIDERA TAKUYA , NAGURA YASUMI , SAKAMOTO MICHITO , ISHIDE TAKASHI , URUSHIBATA SHOICHI , SATO MASATOSHI , NAGASHIMA TADASHI
IPC分类号： B23K26/21 , B23K26/064 , B23K26/142 , B23K26/28
摘要： PURPOSE:To improve the repairing quality and to reduce the repairing time by providing a notch on a symmetrical part of a condensing optical system to form a gas path and arranging a gas nozzle in the vicinity of a laser beam projection hole and providing a cooling fin on the rear of a reflection mirror. CONSTITUTION:A fiber projection part 19, a tip optical system 12 and the condensing optical system 14 are arranged to the inside of a repairing sleeve 10. At this time, the gas path 17 for a gas curtain is provided on a rotary cylinder 13 to form the gas curtain on the laser projection hole 16. By this method, spatters, etc., from a weld zone 11 are prevented from penetrating into the rotary cylinder 13. A part of gas of the path 17 cools each lens of the optical systems 12 and 14 by the flow of the gas and the reflection mirror 15 is cooled by the fin 20. Accordingly, at the time of the repairing work of a heat-transfer pipe 4, the functional deterioration of the optical systems is prevented and the weld quality is improved. Namely, the repairing quality is improved and the repairing time is also reduced.

83. 发明专利

JPS62161477A CONTROL METHOD FOR WELDING 失效
公开(公告)号：JPS62161477A
公开(公告)日：1987-07-17
申请号：JP312486
申请日：1986-01-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKAMATSU KAZUHIKO , SHIMOYAMA HIROSHI , ISHIDE TAKASHI
IPC分类号： B23K9/06 , B23K9/073 , B23K9/12 , B23K9/127
摘要： PURPOSE:To execute an automatic correction against the variation of a welding current by offsetting the variation of a control signal A of an input of a welding current value corresponding to the variation of a control signal B by the input of a welding wire feeding motor applied voltage, by the signal B, and holding a differential control signal at a roughly prescribed value. CONSTITUTION:A welding current I is varied almost linearly against the variation of a wire feeding motor applied voltage EM, therefore, a differential control signal IID based on a difference signal of both of them offsets the variation of the current I by the variation of the voltage EM and holds the roughly prescribed value. As a result, said signal IID becomes the quantity which is varied only the variation of a wire projecting length. Accordingly, it scan be utilized effectively as a control signal source for detecting the state of an arc extending over a wide welding current range with the high accuracy. According to the welding control method of this invention, an automatic correction against the variation of the welding current can be executed, and the excellent operability is displayed. In this regard, in the figure, 1, 2, 3, and 4 denote a material to be welded, a welding torch, a welding wire, and a wire feeding motor, etc., respectively.

84. 发明专利

JPS62161475A WELDING CONTROL METHOD 失效
公开(公告)号：JPS62161475A
公开(公告)日：1987-07-17
申请号：JP312286
申请日：1986-01-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKAMATSU KAZUHIKO , SHIMOYAMA HIROSHI , ISHIDE TAKASHI
IPC分类号： B23K9/127 , B23K9/12
摘要： PURPOSE:To execute a welding control which can execute an automatic correction against the variation of a welding current, by offsetting the variation of a control signal I by the input of a welding current by the variation of a welding wire feeding motor applied voltage EM, by a signal EM, and holding a roughly prescribed value. CONSTITUTION:A figure (d) shows a left side ID sample value ID.L102a and right side sample value ID.R101a brought to sampling by weaving left/right end strobe signals PL, PR against the instantaneous value of a differential control signal ID which is varied in the shape of a wave of a welding arc. Also, a figure (f) shows differential outputs (ID.R-LD.L) of a right side ID sample side ID sample value ID.R and a left side ID sample value ID.L brought to sampling in a figure (a), respectively. This differential output becomes a value corresponding to the quantity of the relative shift of a weld joint center line and the weaving center line of the welding arc, therefore, by discriminating or amplifying it, a Y axis direction servomechanism 107 is driven. As a result, the signal ID holds a prescribed value, almost irrespective of a welding current value, varied only by the variation of the projecting quantity of a wire, and the adjusting operation is simplified.

85. 发明专利

JPS6293094A LASER WELDING EQUIPMENT FOR FINE TUBE 失效
公开(公告)号：JPS6293094A
公开(公告)日：1987-04-28
申请号：JP23308385
申请日：1985-10-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： KUDO MASAHARU , SHIRASU ISAO , NAGURA YASUMI , ISHIDE TAKASHI , SAKAMOTO MICHITO
IPC分类号： B23K26/21
摘要： PURPOSE:To weld the necessary place only concentrically and to reduce the welding time by inserting the optical fiber which leads a laser beam and a conical concave mirror into a fine tube with their combination. CONSTITUTION:A heat transfer tube 1 and sleeve 5 are closely fitted by expanding the sleeve 5 with its inserting into the inner face close to the defective part 4 of the fine tube like the heat transfer tube 1, etc. A concave mirror 11 is then held on the inner face of the sleeve 5 by a stabilizer 12 by inserting the conical concave mirror 11. When a laser beam generator 16 is turned on in this state, the laser beam is irradiated on all the periphery of the inner face of the sleeve 5 after the laser beam passing through an optical fiber 14 and being reflected by the concave mirror 11. Consequently, the heat transfer tube 1 and sleeve 5 are instantaneously welded.

86. 发明专利

JPS60145275A ROOT PASS METHOD 失效
公开(公告)号：JPS60145275A
公开(公告)日：1985-07-31
申请号：JP69084
申请日：1984-01-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAMEI HIROMASA , IMADA TAKEHIKO , NISHIKAWA YOSHIHISA , FUKUNAGA YOSHIAKI , MASAKI TSUTOMU , ISHIDE TAKASHI
IPC分类号： B23K9/173 , B23K9/02 , B23K9/022 , B23K9/16
摘要： PURPOSE:To perform satisfactory root pass of a consumable electrode type gas shielded arc welding by welding the wide angle side of a groove by a high current spray arc and a narrow angle side by a low current short arc respectively and moving circularly the arcs in the weld line direction. CONSTITUTION:A high current spray arc 12 and a low current short arc 11 are continuously and alternately changed over and are circularly moved in the welding direction so that the wide angle side of the groove 23 of materials 21, 22 to be welded is welded by the arc 12 to form the 1st weld metal 32 and the narrow angle side is welded by the arc 11 to form the 2nd weld metal 33 in each unit circular movement to perform satisfactory root pass in the stage of performing butt welding between the materials 21 and 22 by consumable electrode type gas shielded arc welding. Formation of satisfactory penetration beads is made possible by changing the ratio between the low current region theta1 and high current region theta2 in the above-mentioned unit circular movement according to the varying size of the gap 24 of the groove 23.

87. 发明专利

JPS60130476A GAS SHIELDED ARC WELDING METHOD 失效
公开(公告)号：JPS60130476A
公开(公告)日：1985-07-11
申请号：JP23842983
申请日：1983-12-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGURA YASUMI , NAYAMA RISUKE , ISHIDE TAKASHI , FURUYASU HIROSHI
IPC分类号： B23K9/16
摘要： PURPOSE:To prevent lack of fusion in the base or end part of a groove and to accomplish satisfactory welding by preheating uniformly the part just before the gas shielded arc weld bead part by a consumable electrode with a TIG torch of a rotating eccentric tungsten electrode. CONSTITUTION:The arc 7 just before the bead part 4 of gas shielded arc welding by a consumable electrode 3 is preheated uniformly by a TIG torch 5 using a rotating eccentric tungsten electrode 6. The molten electrode arrives at the base and end part of the groove of the bead part 4 and is satisfactorily deposited thereon, by which the satisfactory welding is accomplished.

88. 发明专利

JP2014117767A Composite machining method and composite machining apparatus 有权
标题翻译：复合加工方法及复合加工设备
公开(公告)号：JP2014117767A
公开(公告)日：2014-06-30
申请号：JP2012273902
申请日：2012-12-14
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： KUREYA MASAYUKI , TSURUGA SHIGENORI , WATANABE TOSHIYA , NIITANI HARUHIKO , YAMASHITA TSUGUMARU , HORIE JO , ISHIDE TAKASHI
IPC分类号： B23P23/04 , B23K26/08 , B23K26/38
摘要： PROBLEM TO BE SOLVED: To speed up machining by performing laser machining and mechanical machining successively or in parallel with each other.SOLUTION: Included are a laser machining process in which an irradiating position of a laser L that machines a workpiece W and a machining position of an implement E that machines the workpiece W are shifted in line with a predetermined shift reference, and the laser L is used to machine the workpiece W, and a mechanical machining process in which the workpiece W machined using the laser L is machined using the implement E successively to the laser machining process.
摘要翻译：要解决的问题：通过相继或并行执行激光加工和机械加工来加快加工。包括激光加工工艺，其中激光L的照射位置加工工件W和加工位置对工件W进行加工的工具W以预定的换档基准移动，并且使用激光L来加工工件W，并且使用机械加工工艺，其中使用激光L加工的工件W使用依次实施E激光加工。

89. 发明专利

JP2013210057A Wear-resistant coat coating structure 审中-公开
标题翻译：耐磨涂层结构
公开(公告)号：JP2013210057A
公开(公告)日：2013-10-10
申请号：JP2012081092
申请日：2012-03-30
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： KUREYA MASAYUKI , ASAUMI SHINICHIRO , WATANABE TOSHIYA , ISHIDE TAKASHI
IPC分类号： F16C33/10 , C23C18/36 , F16C33/14
摘要： PROBLEM TO BE SOLVED: To provide a structure that makes lubricant stored in a recess on a slide surface actively advance around the recess to improve lubricity and wear-resistance of the sliding surface.SOLUTION: A first bearing 1 in which a plurality of recesses 3 for storing lubricant supplied to a space 20 between a bearing sliding surface 1a and a rotation shaft sliding surface 4a that are mechanically faced are disposed on at least one side of the sliding surface, and a water repellent coat coating 5 which is formed as a film on the bearing sliding surface 1a, and advances the lubricant stored in the recesses 3 to a bank part around the recesses to accelerate lubrication on the sliding surface, are provided.
摘要翻译：要解决的问题：提供使储存在滑动表面上的凹部中的润滑剂积极地前进到凹部周围的结构，以提高滑动表面的润滑性和耐磨性的结构。解决方案：第一轴承1，其中多个凹部3 用于储存润滑剂供给到轴承滑动表面1a和机械面对的旋转轴滑动表面4a之间的空间20设置在滑动表面的至少一侧上，并且防水涂层5形成为膜在轴承滑动表面1a上，并且将存储在凹部3中的润滑剂前进到凹部周围的堤部，以加速滑动面上的润滑。

90. 发明专利

JP2012011409A Cutting and drilling method of composite material member 审中-公开
标题翻译：复合材料成员的切割和钻孔方法
公开(公告)号：JP2012011409A
公开(公告)日：2012-01-19
申请号：JP2010149097
申请日：2010-06-30
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： IMAGAWA YUZO , KISHIKAWA KAORU , FUJITANI YASUYUKI , ISHIDE TAKASHI , KAWAZOE KOHEI , UDA KAZUTAKA
IPC分类号： B23K26/00 , B23K26/38 , B23K26/40
摘要： PROBLEM TO BE SOLVED: To provide a laser beam machining method capable of speed processing, and reducing a heat-affected width around a cutting part without using a special device.SOLUTION: In the cutting and drilling method of a composite material member 2, the width of an allowable heat-affected zone 7 is defined, and the working speed of a laser beam 3 and the output of the laser beam 3 are set based on a heat conduction equation using the specific heat and the density of composite material member 2 so that a temperature in a circumference 8 of the heat-affected zone becomes a prescribed value or lower when the laser beam 3 is irradiated.

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