LEI Xiaowei, MA Zhaowei, CHEN Liyang, et al.Effect of Different Cold Metal Transfer Welding Technology on Weld Forming and Properties of 5083 Aluminum Alloy[J].Electric Welding Machine, 2022, 52(9): 39-44.
LEI Xiaowei, MA Zhaowei, CHEN Liyang, et al.Effect of Different Cold Metal Transfer Welding Technology on Weld Forming and Properties of 5083 Aluminum Alloy[J].Electric Welding Machine, 2022, 52(9): 39-44. DOI: 10.7512/j.issn.1001-2303.2022.09.06.
Effect of Different Cold Metal Transfer Welding Technology on Weld Forming and Properties of 5083 Aluminum Alloy
The cold metal transfer welding technology is used to weld 5083 aluminum alloy. The effect of pulse gas metal arc welding, direct-current/variable polarity cold metal transfer welding and direct-current/variable polarity cold metal mix with pulse transfer welding on weld forming are analyzed. By setting different AC balance, the influence of different positive/negative ratio and pulse ration on plate weld forming is analyzed. Butt welding tests of 8mm thick 5083 aluminum alloy are carried out by cold metal transfer welding, cold metal transfer mix with pulse transfer welding, variable polarity cold metal transfer welding and variable polarity cold metal transfer mix with pulse transfer welding. The weld forming, section appearance, micro blowhole number, microstructure and mechanical properties of different technologies are compared. The results show that the weld obtained by the cold metal transfer mix with pulse transfer welding is well formed with the lowest number of micro blowhole and slightly better mechanical properties. The microstructure of the weld is α phase (Al), granular precipitated phase and dispersion phase.
关键词
冷金属过渡焊变极性冷金属过渡焊变极性冷金属混合脉冲过渡焊焊缝成形微气孔
Keywords
cold metal transfer weldingvariable polarity cold metal transfer weldingvariable polarity cold metal mix with pulse transfer weldingweld formingmicro blowhole
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