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10 无螺纹搅拌头几何尺寸及其焊接的FSW和UAFSW接头的横截面形貌的OM像
Fig.10 Geometric dimension of smooth pin tool (d1 = 8 mm, d2 = 4.8 mm, D = 16 mm, H = 5.8 mm) (a), cross-sectional OM images of FSW (b) and UAFSW (c) joints welded by smooth pin tool under rotation rate 1200 r/min and welding rate 160 mm/min