Friction stir welding apparatus and method
    31.
    发明授权
    Friction stir welding apparatus and method 失效
    摩擦搅拌焊接设备及方法

    公开(公告)号:US06299050B1

    公开(公告)日:2001-10-09

    申请号:US09512472

    申请日:2000-02-24

    IPC分类号: B23K2012

    摘要: The invention intends to reduce a frequency at which defects occur in a welding region during friction stir welding, and to improve the reliability of the welding region. The invention resides in a friction stir welding apparatus wherein a distance to the surfaces of the workpieces is detected by a detector, a change of the detected distance is found by a signal processing device, and a tool is rotated by a rotation driving device in a state where a vertical driving device is controlled by a control device so as to suppress the found change, whereby a plastic fluidity of the workpieces is caused to accomplish joining of the workpieces.

    摘要翻译: 本发明旨在降低摩擦搅拌焊接期间在焊接区域中发生缺陷的频率,并且提高焊接区域的可靠性。 本发明涉及一种摩擦搅拌焊接装置,其中通过检测器检测到工件表面的距离,通过信号处理装置发现检测到的距离的改变,并且工具由旋转驱动装置旋转 其中垂直驱动装置由控制装置控制以抑制发现的变化,由此使工件的塑性流动性实现工件的接合。

    Friction stir welding method
    32.
    发明授权
    Friction stir welding method 失效
    摩擦搅拌焊接方法

    公开(公告)号:US06866181B2

    公开(公告)日:2005-03-15

    申请号:US10379670

    申请日:2003-03-06

    IPC分类号: B23K20/12 H05B7/00

    CPC分类号: B23K20/1255 B23K20/122

    摘要: There is provided a method capable of decreasing a friction force in friction stir welding, in which a welding tool is used. In a method of friction stir welding workpieces together by rotating and pressingly plugging a welding tool, formed from a harder material than the workpieces, into a weld zone of the workpieces and moving the welding tool relatively in a welding direction, a power supply device allows a current to flow between the welding tool 1 and the workpieces to cause resistance heating of the welding tool. Combined use of resistance heating makes it possible to decrease a friction force. Preferably, a conductive ceramic is coated on surfaces of the welding tool to cause resistance heating.

    摘要翻译: 提供了一种能够降低摩擦搅拌焊接中使用焊接工具的摩擦力的方法。 在通过将由比工件更硬的材料形成的焊接工具旋转并将其紧密地插入到工件的焊接区域并相对于焊接方向移动焊接工具的同时将工件摩擦搅拌焊接在一起的方法中,电源装置允许 在焊接工具1和工件之间流动的电流引起焊接工具的电阻加热。 电阻加热的组合使得可以减小摩擦力。 优选地,导电陶瓷涂覆在焊接工具的表面上以引起电阻加热。

    Friction stir welding method and component part welded by the method
    33.
    发明授权
    Friction stir welding method and component part welded by the method 失效
    摩擦搅拌焊接方法和部件焊接方法

    公开(公告)号:US06739495B2

    公开(公告)日:2004-05-25

    申请号:US10346075

    申请日:2003-01-17

    IPC分类号: B23K2012

    摘要: Disclosed is a friction stir welding method for welding two members to be welded which differ in physical properties and/or mechanical properties by abutting the two members to each other, inserting a pin portion of a rotary tool having the pin portion and a shoulder portion to the abutment surfaces of the two members, and moving the rotary tool along the abutment surfaces. The pin portion is inserted to only one of the members, the pin portion is not inserted to the other of the members but only the shoulder portion is set in contact with the other of the members, and, while this condition is maintained, the rotary tool is moved. With this method, only the member on the side where the pin is inserted can be made to undergo plastic flow attendant on a friction stir action. The metal in plastic flow is pressed against the opposite member at an elevated temperature and high pressure, whereby diffusion of atoms is caused in the vicinity of the abutment surfaces, and the members are welded.

    摘要翻译: 公开了一种摩擦搅拌焊接方法,用于通过将两个构件彼此抵靠来将两个构件彼此抵接而将两个不同的物理特性和/或机械性质的两个待焊接的构件进行焊接,将具有销部分和肩部的旋转工具的销部分插入到 两个构件的邻接表面,并且沿着邻接表面移动旋转工具。 销部分仅插入到一个构件中,销部分不插入到另一个构件中,而是仅将肩部设置成与另一个构件接触,并且在保持该状态的同时,旋转 工具被移动。 通过这种方法,只有插入销侧的构件才能在摩擦搅动作用下经受塑性流动。 塑料流中的金属在升高的温度和高压下压在相对的构件上,由此在邻接表面附近引起原子的扩散,并且构件被焊接。

    Frame member used in friction stir welding
    34.
    发明授权
    Frame member used in friction stir welding 失效
    框架构件用于摩擦搅拌焊接

    公开(公告)号:US06640515B1

    公开(公告)日:2003-11-04

    申请号:US09547042

    申请日:2000-04-11

    IPC分类号: E04B208

    摘要: Disclosed is a friction stir welding technique which avoids occurrence of a dent, in a joining region, extending to a level beneath the joined surfaces. At end portions of the frame members to be joined, at the joining region, thickened parts which project toward the rotary body joining tool are provided. Two adjoining thickened parts, of adjacent members to be joined, can form a trapezoid shape. The rotary body joining tool has a small-diameter tip portion and a larger diameter portion. The rotary body joining tool is inserted in the thickened parts. In a state where the rotary body joining tool has been inserted small-diameter tip end first, to a level where the larger diameter portion of the rotary body joining tool overlaps the thickened part but does not extend below the upper surface of the non-thickened surfaces of the members joined, the rotary body is rotated and moved along the joining region. Even when a gap exists between two thickened parts, a desirable joining can be carried out. After the joining, the remaining parts of the thickened parts can be machined so as to form a smooth surface.

    摘要翻译: 公开了一种摩擦搅拌焊接技术,其避免了在接合区域中延伸到接合表面下方的凹陷处的凹陷。 在要连接的框架构件的端部处,在接合区域设置朝向旋转体接合工具突出的加厚部。 邻接的待连接件的两个相邻的加厚件可以形成梯形。 旋转体接合工具具有小直径末端部分和较大直径部分。 旋转体接合工具插入加厚部分。 在旋转体接合工具首先插入小直径尖端的状态下,到旋转体接合工具的较大直径部分与增厚部分重叠但不延伸到未加厚的上表面的水平 所述构件的表面接合,所述旋转体沿所述接合区旋转并移动。 即使在两个加厚部分之间存在间隙,也可以进行所需的接合。 在接合之后,加工部件的其余部分可以加工成形成光滑的表面。