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4 距接头上表面0.2 mm处的搅拌区(SZ)水平截面形貌的OM像 (a) FSW joint (b) UAFSW joint

Fig.4 OM images of horizontal sections of the stir zone (SZ) at the distance of 0.2 mm from the top surface of the joints welded at rotation rate 1200 r/min and welding rate 160 mm/min