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1. 发明专利

JPH11291065A FRICTION JOINING METHOD 失效
公开(公告)号：JPH11291065A
公开(公告)日：1999-10-26
申请号：JP9714598
申请日：1998-04-09
申请人： HITACHI LTD
发明人： AOTA KINYA , OKAMURA HISANORI , FUNYU MASAO , SAKAMOTO MASAHIKO , ISHIMARU YASUO , ESUMI MASAKUNI , SATO AKIHIRO
IPC分类号： B23K20/12
摘要： PROBLEM TO BE SOLVED: To prevent the lowering of strength and the breakage of a tool by forming the tool for friction joining, in which the bar-like tool composed of substantially harder material than that of a materials to be welded is inserted while rotating into the joining parts of the materials to be welded and the joining is executed by shifting the joining surfaces, as hollow shape and joining while passing coolant through the hollow part. SOLUTION: The materials to be worked are butted and joined by shifting the tool 1 while rotating along the butted surfaces. At this time, since the friction heat is generated between the tool 1 and the materials to be worked, the temp. of the tool 1 is raised. The material of the tool 1 uses the harder metal than that of the material to be worked, but the strength of this metal is lowered according to the rising of the temp. Since, when the temp. of the tool is raised, the tool 1 is broken at the time of lowering of the strength below the limitation bearable to the friction force, the tool 1 is constituted with a large diameter shoulder part 2 and a small diameter pin 3 at the tip part on the tool 1 and the inner part of the shoulder part 2 is formed as the hollow state, and the tool 1 is cooled by passing the coolant through the hollow part. As the coolant, air or water, etc., is used.

2. 发明专利

JPH11226757A FRICTION WELDING METHOD 失效
公开(公告)号：JPH11226757A
公开(公告)日：1999-08-24
申请号：JP3833198
申请日：1998-02-20
申请人： HITACHI LTD
发明人： SAKAMOTO MASAHIKO , OKAMURA HISANOBU , FUNYU MASAO , AOTA KINYA , WATABE KOICHI , TAKAHASHI OSAMU , ASANO KATSUHIKO , SATO AKIHIRO
IPC分类号： B23K31/00 , B23K20/12 , B23K20/26 , B23K101/06 , H01F6/06
摘要： PROBLEM TO BE SOLVED: To reduce the occurrence of deformation of a work after welding and a welding defect due to deformation by pouring a coolant around a metal bar/a weld zone and welding while forcedly cooling a work with welding in a coolant. SOLUTION: Welding grooves 4 of a round tube 3 are subjected to friction welding in a longitudinal direction while pouring a coolant 2 around a metal bar 1. A tip part of the metal bar 1 is sharply worked, this sharp part is inserted into a butt welding part and moved in a weld line direction while rotating. For example, a flow rate is 21/min, a rotation number of the metal bar is 1000 rpm, a moving speed is 300 mm/min. This cooling makes a temp. of the neighborhood of a weld zone and the metal bar e.g.

3. 发明专利

JPH115179A FRICTION WELDING 失效
公开(公告)号：JPH115179A
公开(公告)日：1999-01-12
申请号：JP15474997
申请日：1997-06-12
申请人： HITACHI LTD
发明人： SATO AKIHIRO , FUNYU MASAO , SAKAMOTO MASAHIKO , OKAMURA HISANOBU
IPC分类号： B23K37/06 , B23K20/12 , B23K33/00 , B61D17/00
摘要： PROBLEM TO BE SOLVED: To realize a friction welding method without a generation of unwelded parts by installing a grooved backing plate on the reverse face of a workpiece right under a tool, which is inserted to the welded part of the workpiece and moves while rotating. SOLUTION: A groove 7 made on a backing plate 2 is placed right under a welding face 3 of the workpiece 1, and welding is performed while a tip 4a of a tool 4 is inserted until it penetrates the reverse face of the workpiece 1. In this welding method, a part of the workpiece 1 is plastic flowed to the groove 7 made on the backing plate 2. During the welding processing, since the welding surface is being plastic flowed by the pressure of the tool 4, when the groove 7 is filled with metal, the metal on the welding part surface is decreased to make a concave form. The metal, which is to fill the groove 7, is supplemented by forming a projection 8 on the welding surface in advance. The tip 4a of the tool 4 is preferred to be welded while moving in the groove 7 of the backing plate 2. In this way, the overall of the welding part is fused are eliminates unwelded parts by deleting the backing waves.

4. 发明专利

JPH0827461B2 失效
公开(公告)号：JPH0827461B2
公开(公告)日：1996-03-21
申请号：JP6126987
申请日：1987-03-18
申请人： HITACHI LTD
发明人： FUYAMA MORIAKI , NUNOKAWA ISAO , FUNYU MASAO
IPC分类号： G02F1/13 , G02F1/133 , G02F1/1345 , G09F9/35

5. 发明专利

JPH07185810A WELDING CONDITION MONITORING DEVICE AND AUTOMATIC WELDING SYSTEM 失效
公开(公告)号：JPH07185810A
公开(公告)日：1995-07-25
申请号：JP33101693
申请日：1993-12-27
申请人： HITACHI LTD , HITACHI MATERIAL ENG KK
发明人： FUJIKI DAISUKE , FUNYU MASAO , MATSUMOTO TOSHIMI , FUNAMOTO TAKAO , KOBAYASHI MASAHIRO , KARATSU YOSHINORI , YAMAGUCHI YUJI , OGURA SATOSHI
IPC分类号： B23K9/095
摘要： PURPOSE:To constitute a welding system capable of automating welding by visualizing the condition right under and near arc light with suppressing influence of high brightness and grasping welding condition from a remote place. CONSTITUTION:Photographing is executed by the camera main body 5 consisting of an optoelectric detector having a sensitivity in visible region placed coaxially with an electrode through a lens 6 and light dimming filter 8 placed in the front. A photographing timing is at the time when an electric current value is lowered to a base electric current, a picture is taken in by synchronizing to a base electric current time. At this time, a weld zone is irradiated with a light source 7 placed around the camera main body, a molten pool right under arc light is visualized by suppressing arc light. Also, by providing a movable reflection mirror and fixed reflection mirror in the front of the camera main body, the condition around the camera main body is visualized.

6. 发明专利

JPH05298610A 失效
公开(公告)号：JPH05298610A
公开(公告)日：1993-11-12
申请号：JP10131392
申请日：1992-04-21
申请人： HITACHI LTD
发明人： SANO MASAAKI , KOMURO MATAHIRO , FUNYU MASAO , MITSUOKA KATSUYA , OHASHI TAKEYA , NARUSHIGE SHINJI , KAGAWA MASAYOSHI , KOBAYASHI TETSUO , KOBAYASHI SHIRO
IPC分类号： G11B5/127 , C22C19/07 , G11B5/31 , H01F10/12
摘要： PURPOSE:To provide the high-recording density magnetic disk device mounted with a recording/reproducing sepn. type magnetic head including a magnetic recording head using magnetic films having a high saturation magnetic flux density, low coercive force and excellent corrosion to a soln. to be used at the time of production, etc. CONSTITUTION:This high-recording density magnetic disk device is mounted with the recording/reproducing sepn. type magnetic head including the magnetic recording head 103 constituted by using the magnetic thin films consisting of 40 to 70at.% Co, 10 to 30at.% Ni, 15 to 40at.% Fe and 1 to 10at.% Cu for an upper magnetic core 112 and a lower magnetic core 113 and a reproducing head 115. The device has the high saturation magnetic flux density, the low coercive force and the good corrosion resistance and heat resistance.

7. 发明专利

JPS639665B2 失效
公开(公告)号：JPS639665B2
公开(公告)日：1988-03-01
申请号：JP501981
申请日：1981-01-19
申请人： HITACHI LTD
发明人： OONUKI HITOSHI , TAMAMURA TATEO , FUNYU MASAO , KUNYA KEIICHI
IPC分类号： H01L23/34 , H01L21/52 , H01L23/373 , H01L23/40

8. 发明专利

JP2003290937A Tool for friction agitation joining and friction agitation joining method 审中-公开
标题翻译：摩擦磨损工具加工和摩擦磨合加工方法
公开(公告)号：JP2003290937A
公开(公告)日：2003-10-14
申请号：JP2002102010
申请日：2002-04-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AOTA KINYA , SATO KOJI , FUNYU MASAO , OKAMURA HISANOBU
IPC分类号： B23K20/12
摘要： PROBLEM TO BE SOLVED: To provide a joining method which is drastically changed in the load of a tool by changing of contact areas between the tool and work pieces when the depth of the tool changes and the tool adequate for performing this method.
SOLUTION: The friction agitation joining method comprises joining the work pieces by pressing and inserting the joining tool consisting of the material harder than the material of the work pieces into the junction of the work pieces while rotating the tool, in which the joining tool comprises a shoulder 3 of a large diameter and a pin 2 of a small diameter and is so formed as to have a slope 5 inclined with the surfaces of the work pieces on the outer peripheral side at the end face of the shoulder 3 coming into contact with the work pieces. The work pieces are joined by using such tool, by which the contact areas with the work pieces are changed when the depth of the tool changes and therefore the load of the tool changes drastically. The good joining is therefore accomplished by controlling the depth of the tool in such a manner that the load of the tool is kept constant.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种当刀具的深度改变时，通过改变工具和工件之间的接触面积而使工具的负荷急剧变化的接合方法，并且该工具足以用于执行该方法。解决方案：摩擦搅拌接合方法包括通过将由比工件的材料更硬的材料组成的接合工具在工具旋转的同时将工件的连接压入并插入到工件的接合部中来接合工件，其中接合工具包括大直径的肩部3和小直径的销2，并且形成为具有在肩部3的端面处的外周侧上的工件的表面倾斜的斜面5 与工件接触。通过使用这种工具连接工件，当工具的深度改变时，与工件的接触区域改变，因此工具的负载急剧变化。因此，通过以使得工具的负载保持恒定的方式控制工具的深度来实现良好的接合。版权所有（C）2004，JPO

9. 发明专利

JP2002117913A WELDING JUNCTION JOINT FOR METAL WIRE AND ITS JOINING METHOD 失效
公开(公告)号：JP2002117913A
公开(公告)日：2002-04-19
申请号：JP2000304807
申请日：2000-10-04
申请人： HITACHI LTD
发明人： AOTA KINYA , OKAMURA HISANOBU , FUNYU MASAO , ISHIKAWA NORITOSHI , ONOSE SHIN , TERAKADO KAZUYOSHI
IPC分类号： B23K26/21 , B23K9/00 , B23K26/18 , B23K101/34 , H01R4/02 , H01R43/02 , B23K26/00
摘要： PROBLEM TO BE SOLVED: To provide a welding junction joint for a metal wire and its joining method capable of compactly and positively joining a highly heat resistant metal wire with a metal terminal or two metal wires without separately providing a process for peeling an insulating coat. SOLUTION: This welding junction joint and its joining method welding a metal terminal with a metal wire or two metal wires by an intense heat source is characterized by that an end part of the terminal is melted by the intense heat source after carrying out either one of applying metal plating enhancing absorption of a laser beam to a junction of the terminal and winding the metal wire around the portion applied with the plating, forming a junction end part of the terminal into a quadrangle and winding the metal wire around the portion formed into the quadrangle, or providing a groove on the junction end part of the terminal and winding the metal wire around the portion of the groove.

10. 发明专利

JP2001138074A METHOD AND DEVICE FOR MANUFACTURING BODY STRUCTURE FOR RAILWAY VEHICLE 失效
公开(公告)号：JP2001138074A
公开(公告)日：2001-05-22
申请号：JP2000279742
申请日：2000-09-14
申请人： HITACHI LTD
发明人： OKAMURA HISANOBU , FUNYU MASAO , SATO AKIHIRO , AOTA KINYA , ESUMI MASAKUNI , ISHIMARU YASUO
IPC分类号： B61D17/00 , B23K20/12 , B23K101/04 , B23K103/10
摘要： PROBLEM TO BE SOLVED: To perform friction welding by stably fixing a long size and large structure part like a vehicle. SOLUTION: Rollers 7, 7 for pressing down works 2, 2 are arranged in the vicinity of a rotary tool 1, and a roller 8 is arranged on the opposite side to the rollers 7, 7 to support the works 2, 2. These three parties are moved synchronously to perform the friction welding.

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