冷丝辅助旋转<strong>/</strong>摇动电弧窄间隙<strong>MAG</strong>焊缝成形特性及接头组织性能演变机制

冷丝辅助旋转/摇动电弧窄间隙MAG焊缝成形特性及接头组织性能演变机制

李红, 姜玉清, 曹玉鹏, 王加友, 刘澍彬

Weld Formation Characteristics and the Evolution Mechanisms of Joint Microstructure and Mechanical Properties for Rotating/Swing Arc Narrow Gap MAG Welding Assisted by Cold Wire

LI Hong, JIANG Yuqing, CAO Yupeng, WANG Jiayou, LIU Shubin

图7 V_f2和f_R对旋转电弧窄间隙MAG单层焊缝成形的影响

Fig.7 Effect of V_f2 on rotating arc narrow gap MAG weld formation at various f_R (r₂ = 3.6 mm, d_aw = 0 mm)
(a) V_f2 = 0 m/min, f_R = 50 Hz
(b-e) V_f2 = 3 m/min with f_R = 25 Hz (b), 50 Hz (c), 75 Hz (d), and 100 Hz (e)