Spot welding method and spot welding apparatus
    21.
    发明专利
    Spot welding method and spot welding apparatus 有权
    点焊焊接方法和点焊设备

    公开(公告)号:JP2012071333A

    公开(公告)日:2012-04-12

    申请号:JP2010218372

    申请日:2010-09-29

    Abstract: PROBLEM TO BE SOLVED: To allow a nugget to fully grow on contact surfaces of workpieces when executing spot welding on a laminate formed by laminating three or more workpieces.SOLUTION: For example, when executing the spot welding to a laminate 16a in which metal plates 18, 20 of high resistance and a metal plate 22 of low resistance are layered from the lower end in this order, the laminate 16a is held by a first welding tip 10 of the positive polarity and a second welding tip 12 of the negative polarity. At the same time, an auxiliary electrode 14 of the negative polarity is abutted on the metal plate 20 facing the inside of the laminate 16a out of the metal plates 18, 20 of the large contact resistance in a vicinity of the contact surface. In the initial welding stage, the pressure applied to the laminate 16a by the first welding tip 10 and the second welding tip 12 is relatively low, and then, the pressure is increased, continuing the conduction.

    Abstract translation: 要解决的问题:当在通过层叠三个或更多个工件形成的层压板上执行点焊时,允许熔核在工件的接触表面上完全成长。 解决方案:例如,当对从高端电阻的金属板18,20和低电阻的金属板22依次层叠的层叠体16a进行点焊时,保持层叠体16a 通过正极性的第一焊嘴10和负极性的第二焊嘴12。 同时,负极性的辅助电极14与接触面附近的接触电阻大的金属板18,20之间的金属板20抵接在层叠体16a的内侧。 在初始焊接阶段,通过第一焊嘴10和第二焊嘴12施加到层压体16a的压力相对较低,然后压力增加,继续传导。 版权所有(C)2012,JPO&INPIT

    Method of bonding dissimilar metal materials, and bonded body of dissimilar metal materials
    22.
    发明专利
    Method of bonding dissimilar metal materials, and bonded body of dissimilar metal materials 有权
    粘结金属材料的方法和非金属材料的粘结体

    公开(公告)号:JP2012050996A

    公开(公告)日:2012-03-15

    申请号:JP2010194541

    申请日:2010-08-31

    Abstract: PROBLEM TO BE SOLVED: To improve bonding strength, in particular, peel strength, when bonding dissimilar metal materials.SOLUTION: A steel member 11 (high-melting-point material) and an aluminum member 12 (low-melting-point material) as the dissimilar metal materials which have different melting points are located in a planned bonding position, and a rotation tool 13 is pressed against and inserted to the steel member 11 while being rotated. An insertion position of the rotation tool 13 is controlled to a position where the steel member 11 is not broken through. The steel member 11, by friction heat between the rotation tool 13, and the aluminum member 12, by heat transfer of the friction heat, are partially softened, and thus, plastically fluidized. The steel member 11 and the aluminum member 12 are partially stirred by the rotation tool 13 thereby carrying out friction-stir welding of the steel member and the aluminum member.

    Abstract translation: 要解决的问题:当粘合不同的金属材料时,提高粘合强度,特别是剥离强度。 解决方案:作为具有不同熔点的不同金属材料的钢构件11(高熔点材料)和作为不同金属材料的铝构件12(低熔点材料)位于预定的粘合位置,并且 旋转工具13在旋转的同时被按压并插入钢构件11。 旋转工具13的插入位置被控制到钢构件11未被穿过的位置。 通过摩擦热的传递,钢构件11通过旋转工具13与铝构件12之间的摩擦热被部分软化,因此被塑性流化。 钢构件11和铝构件12被旋转工具13部分地搅拌,从而进行钢构件和铝构件的摩擦搅拌焊接。 版权所有(C)2012,JPO&INPIT

    Press molding method of molding of the excellent different material tailored blank

    公开(公告)号:JP4520549B2

    公开(公告)日:2010-08-04

    申请号:JP17691199

    申请日:1999-06-23

    CPC classification number: B23K2201/185

    Abstract: PROBLEM TO BE SOLVED: To provide a press forming method by which the formability of a tailored blank different in thickness and material is improved to avoid the breakage on the low strength (or smaller thickness) blank side attributable to the strength rate control in press forming the tailored blank different in thickness and material. SOLUTION: In the press forming method of the tailored blank different in material in which a stock plate different in strength (=(tensile strength)×(thickness)) is continuously welded and tightened, and the strength ratio is preferably >=1.2, a weld zone is set to a part to generate the distortion gradient in press forming a single stock plate, a stock plate of higher strength is arranged on the side higher in distortion, a stock plate of lower strength is arranged on the side lower in distortion, and both stock plates are continuously welded and tightened, and then, press formed. A weld zone is set in the vicinity of a part to generate the distortion peak when the single stock plate is press formed, the stock plate of higher strength is arranged on the side including the distortion peak, and the stock plate of lower strength is arranged on the side including no distortion peak, and both stock plates are continuously welded and tightened, and then, press formed.

    Joining structure of metal workpiece and joining method thereof
    27.
    发明专利
    Joining structure of metal workpiece and joining method thereof 有权
    金属工件的接合结构及其接合方法

    公开(公告)号:JP2008240979A

    公开(公告)日:2008-10-09

    申请号:JP2007085401

    申请日:2007-03-28

    Abstract: PROBLEM TO BE SOLVED: To provide a joining structure of a metal workpiece and a joining method thereof having less limitation in a joining location.
    SOLUTION: Joining surfaces 1a and 2a rising to the direction to workpieces 1 and 2 as mating members are formed on at least one of a pair of the metal workpieces 1 and 2 joined with each other. An adhesive agent 4 of a chain-reacting type is disposed in a gap 3 between the workpieces 1 and 2 formed by rising in joining. The adhesive agent 4 of the chain-reacting type is successively cured by autogenously generating internal energy by energy imparted from the outside. A portion where the workpieces 1 and 2 face with each other directly (welding portion 5) is welded by a laser beam 31, and the energy for curing is imparted to the adhesive agent 4 by the laser beam 31.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供金属工件的接合结构及其在接合位置方面的限制较少的接合方法。 解决方案:将连接到工件1和2的方向上的接合表面1a和2a作为配合构件形成在彼此接合的一对金属工件1和2中的至少一个上。 链式反应型粘合剂4设置在通过接合形成的工件1和2之间的间隙3中。 链式反应型的粘合剂4通过从外部施加的能量自发生成内部能量而连续固化。 工件1和2直接面对的部分(焊接部分5)被激光束31焊接,用激光束31将粘合剂4赋予固化能量。 C)2009,JPO&INPIT

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