轴向超声振动对搅拌摩擦焊过程中金属流动行为的影响
何长树, 郄默繁, 张志强, 赵骧

Effect of Axial Ultrasonic Vibration on Metal Flow Behavior During Friction Stir Welding
HE Changshu, QIE Mofan, ZHANG Zhiqiang, ZHAO Xiang
图1 超声辅助搅拌摩擦焊(UAFSW)实验装置和搅拌头几何尺寸
Fig.1 Experimental setup of ultrasonic-assisted friction stir welding (UAFSW) (a) and geometric dimension of welding tool (d1—root diameter, 8 mm; d2—head diameter, 4.8 mm; D—shoulder diameter, 16 mm; H—pin length, 5.8 mm) (b)