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2 窄间隙焊接试件尺寸及取样示意图

Fig.2 Size and sampling diagram of narrow gap welding testpieces (unit: mm. RD—rolling direction, TD—transverse direction, ND—normal direction) (a) single-layer welding testpiece (b) multi-layer welding testpiece