| Self-adjusting dynamic characteristics of pulsed MIG welding for aluminum alloys |
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| 引用本文： | 包晔峰,周昀,吴毅雄,楼松年. Self-adjusting dynamic characteristics of pulsed MIG welding for aluminum alloys[J]. 中国有色金属学会会刊, 2004, 14(1): 111-115 |
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| 作者姓名： | 包晔峰 周昀 吴毅雄 楼松年 |
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| 作者单位： | WeldingEngineeringInstitute,ShanghaiJiaotongUniversity,Shanghai200030,China |
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| 摘 要： | Pulsed MIG welding is suitable for aluminum alloys welding, because spray transfer and excellent profile can be arrived during whole welding current range, and the energy of droplet can be controlled to overcome losing of alloy elements with lower melting and steam point by controlling pulse current and pulse time. Because of the special physic properties of aluminum alloys, there are different requirements for pulsed MIG welding between starting arc short circuit and drop transfer short circuit, pulse period and base period. In order to satisfy the need of aluminum alloys MIG welding, self-adjusting dynamic characteristics are designed to output different dynamic characteristics in different welding startes. The self-adjusting dynamic characteristics of pulsed MIG welding are achieved through a short circuit controller and a dynamic electronic inductor. The welding machine(AL-MIG 350) with self-adjusting dynamic characteristics has a high rate of successfully starting arc up to 96%, and the short circuit time during transfer is less than 1ms, in the mean time, the arc is stiffness, spatter is low and weld appearance is good.
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| 关 键 词： | MIG焊 铝合金 动力学 气体保护焊 自调节动力特征 |
Self-adjusting dynamic characteristics of pulsed MIG welding for aluminum alloys |
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| BAO Ye feng,ZHOU Yun,WU Yi xiong,LOU Song nian. Self-adjusting dynamic characteristics of pulsed MIG welding for aluminum alloys[J]. Transactions of Nonferrous Metals Society of China, 2004, 14(1): 111-115 |
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| Authors: | BAO Ye feng ZHOU Yun WU Yi xiong LOU Song nian |
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| Abstract: | Pulsed MIG welding is suitable for aluminum alloys welding, because spray transfer and excellent profile can be arrived during whole welding current range, and the energy of droplet can be controlled to overcome losing of alloy elements with lower melting and steam point by controlling pulse current and pulse time. Because of the special physic properties of aluminum alloys, there are different requirements for pulsed MIG welding between starting arc short circuit and drop transfer short circuit, pulse period and base period. In order to satisfy the need of aluminum alloys MIG welding, self-adjusting dynamic characteristics are designed to output different dynamic characteristics in different welding startes. The self-adjusting dynamic characteristics of pulsed MIG welding are achieved through a short circuit controller and a dynamic electronic inductor. The welding machine(AL-MIG 350) with self-adjusting dynamic characteristics has a high rate of successfully starting arc up to 96%, and the short circuit time during transfer is less than 1 ms, in the mean time, the arc is stiffness, spatter is low and weld appearance is good. |
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| Keywords: | aluminum alloys MIG welding self-adjusting dynamic characteristics |
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