Process Optimization of Cold Metal Transfer Plug Welding of Aluminum AA6061-T6-to-Galvanized DP590 Steel Based on Orthogonal Experiment Method

Process Optimization of Cold Metal Transfer Plug Welding of Aluminum AA6061-T6-to-Galvanized DP590 Steel Based on Orthogonal Experiment Method
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基于正交试验方法的铝AA6061-T6与镀锌DP590钢冷金属过渡塞焊工艺优化

DOI:
10.5755/j01.ms.25.2.18785
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发表时间:
2019-03
期刊:
影响因子:
0.9
通讯作者:
Chuanya Yin
Chuanya Yin
中科院分区:
材料科学4区
文献类型:
--
作者:
Guodong Du;Yanfeng Xing;Chuanya Yin

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本文以AlSi-5焊丝为填充材料,研究了aa6061 - t6铝与镀锌DP590钢的冷金属转移(CMT)塞焊。送丝速度对焊接质量的影响是研究的重点之一。首先,设计正交试验,研究送丝速度、焊接速度和弧长校正对接头力学性能的影响。并通过拉伸试验和金相试验对优化工艺参数下焊缝的焊接质量进行了检验。最后,研究了不同送丝速度对接头形状、金属过渡厚度和焊接强度的影响规律。结果表明,送丝速度对接头强度的影响最大。当送丝速度从5.0 m/min增加到6.2 m/min时,金属间过渡层的厚度增加。分析了工艺参数的最优组合。
In this paper, cold metal transfer (CMT) plug welding of aluminum AA6061-T6-to-galvanized DP590 steel is studied using AlSi-5 welding wire as filler material. The influence of wire feeding speed on welding quality is one of the research emphases. Firstly, an orthogonal experiment is designed to investigate the impact of wire feeding speed, welding speed and arc length correction on the mechanical performance of the joints. In addition, the welding quality of weldments under optimized process parameters are examined by tensile test and metallographic test. Finally, the influence rule of joint shape, metal transition thickness and welding strength under different wire feeding speed is studied. The results show that wire feeding speed has the greatest influence on joint strength. When wire feeding speed goes up from 5.0 m/min to 6.2 m/min, the thickness of intermetallic transition layer increases. The optimal combination of process parameters is analyzed.
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