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    • 44. 发明申请
    • ROTARY TOOL FOR FRICTION STIR WELDING
    • 旋转工具用于摩擦焊接
    • US20120318848A1
    • 2012-12-20
    • US13383403
    • 2010-07-13
    • Takafumi AdachiHiroyuki TakehisaYuji SanoItaru Chida
    • Takafumi AdachiHiroyuki TakehisaYuji SanoItaru Chida
    • B23K20/12
    • B23K20/1255B23K26/356B23K2101/20C21D1/09C21D10/005
    • The object of the invention is to provide a rotary tool for friction stir welding having an excellent abrasion resistance and durability, which can attain an excellent joint characteristics. In a rotary tool 10 for friction stir welding, a shoulder portion 11 has an end surface 13 from which a prove pin 20 protrudes. The outer periphery of the prove pin 20 has a connection 15 linked to the end surface 13 of the shoulder portion 11. Pulse laser peening is applied to a base side region 22, that extends from the connection 15 to the screw part 23a. The prove pin, which is repetitiously exposed to compression load and tensile load during the friction stir welding, can maintain the surface rigidity and the toughness. The durability of the prove pin is greatly improved with the damages due to buckling or thermal deformation being restricted.
    • 本发明的目的是提供一种具有优异的耐磨性和耐久性的用于摩擦搅拌焊接的旋转工具,其可以获得良好的接合特性。 在用于摩擦搅拌焊接的旋转工具10中,肩部11具有端面13,证明销20从该端面突出。 证明销20的外周具有连接到肩部11的端面13的连接15.脉冲激光喷丸被施加到从连接部15延伸到螺纹部23a的基部侧区域22。 在摩擦搅拌焊接过程中重复暴露于压缩载荷和拉伸载荷下的证明销可以保持表面刚度和韧性。 由于弯曲或热变形受到限制,损坏会大大提高证明销的耐久性。