电弧增材制造高强度Al-Mg-Sc系合金研究进展：冶金缺陷、微观组织和力学性能

马成勇, 侯旭儒, 赵琳, 阚成玲, 曹洋, 彭云, 田志凌

Research Progress on High-Strength Al-Mg-Sc Alloys Fabricated by Wire Arc Additive Manufacturing: Metallurgical Defects, Microstructure, and Performance

MA Chengyong, HOU Xuru, ZHAO Lin, KAN Chengling, CAO Yang, PENG Yun, TIAN Zhiling

图3 熔滴过渡示意图[29]及不同CMT模式焊接电源波形图

Fig.3 Schematics of droplet transfer (a-d)[29] and waveform diagrams of welding power sources in different CMT modes (e-h) (T means a period of the welding power) (a) arcing stage (b) short-circuit stage (c) wire retraction (d) arcing stage (e) CMT (f) CMT + pulse (CMT + P) (g) CMT + advance (CMT + Adv) (h) CMT + pulse + advance (CMT + Padv)