摘要
通过实验测试A6061铝合金与低碳钢焊接特性,分析了焊接区域显微组织及其成分,探讨焊接电流、焊接时间对熔核尺寸和焊接区抗剪力的影响。结果表明:焊接主要沿着铝合金进行,在低碳钢内金属熔融的现象不明显,在铝合金与低碳钢接合界面的反应层表现出高低不平的现象;焊接前后的铝合金和焊接区域中的物相都是由Al和Mg2Al3组成,衍射值出现了一定波动;熔核直径和焊接区域的最大抗剪力均随焊接时间和焊接电流的延长呈现出先增大后减小的变化规律,转折点发生在焊接时间150 ms和焊接电流25 k A时。
The welding characteristics of A6061 aluminum alloy and low carbon steel were experimentally studied,and the microstructure and composition of the welding zone were analyzed.The effects of welding current and welding time on the weld core size and shear resistance of the welding zone were discussed.The results show that the welding is mainly carried out along the aluminum alloy,the melting of metal in the low carbon steel is not obvious,and the reaction layer at the interface of the aluminum alloy and low carbon steel shows some uneven phenomenon.Before and after welding,the phase of aluminum alloy and welding area is composed of Al and Mg2Al3,and the diffraction value fluctuates to a certain extent.The diameter of the weld core and the maximum shear resistance of the welding area both increase first and then decrease with the extension of welding time and welding current,and the turning point occurs when the welding time is 150 ms and the welding current is 25 k A.
作者
郑守英
乔立志
Zheng Shouying;Qiao Lizhi(College of Intelligent Manufacturing,Kaifeng Technician College,Kaifeng Henan 475000,China;Department of Automotive Engineering,Pingdingshan Technician College,Pingdingshan Henan 467000,China)
出处
《山西冶金》
CAS
2024年第9期73-74,135,共3页
Shanxi Metallurgy
关键词
铝合金
低碳钢
焊接性能
微观组织
aluminum alloy
mild steel
weldability
microstructure
作者简介
第一作者:郑守英(1980-),女,河南开封人,本科,毕业于中央广播电视大学机械设计制造及其自动化专业,主要从事机械设计与焊接工作。
