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Al/Ni异种金属超声波点动焊接工艺及界面组织分析

崔庆波, 李玉龙, 胡瑢华, 胡小武

崔庆波, 李玉龙, 胡瑢华, 胡小武. Al/Ni异种金属超声波点动焊接工艺及界面组织分析[J]. 焊接学报, 2016, 37(11): 59-62.
引用本文: 崔庆波, 李玉龙, 胡瑢华, 胡小武. Al/Ni异种金属超声波点动焊接工艺及界面组织分析[J]. 焊接学报, 2016, 37(11): 59-62.
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CUI Qingbo, LI Yulong, HU Ronghua, HU Xiaowu. Study on ultrasonic spot welding process and interface microstructure of Al/Ni dissimilar metals joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 59-62.
Citation: CUI Qingbo, LI Yulong, HU Ronghua, HU Xiaowu. Study on ultrasonic spot welding process and interface microstructure of Al/Ni dissimilar metals joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 59-62.
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Al/Ni异种金属超声波点动焊接工艺及界面组织分析

  • 南昌大学 机电学院机器人及焊接自动化重点实验室, 南昌 330031

基金项目: 国家自然科学基金资助项目（51265035）；教育部留学回国人员科研启动基金资助项目

Study on ultrasonic spot welding process and interface microstructure of Al/Ni dissimilar metals joint

  • Key Lab for Robot & Welding Automation of Jiangxi Province, Mechanical & Electrical Engineering School, Nanchang University, Nanchang 330031, China

摘要

    摘要
  • 摘要: 对1060铝合金和N4镍合金异种金属进行了超声波点动焊接，优化了焊接工艺，分析了接头界面组织，焊接接头组织微观形貌和力学性能.结果表明，超声波焊接能够实现1060铝合金和N4镍合金异种金属的有效连接，能够得到韧性和强度都很高的焊接接头；确定了铝镍异种金属超声波焊接的焊接工艺参数为焊接压力25.2~36.0 MPa，焊接时间75~85 ms；当焊接压力为32.4 MPa，焊接时间为85 ms时，抗剪强度超过铝侧母材.焊接接头界面的XRD和EDS分析结果表明，接头界面存在由Al，Ni两种元素互扩散而形成的2 μm厚的反应扩散层.
    Abstract: The ultrasonic spot welding (USW) of 1060 aluminum alloy and N4 nickel alloy dissimilar metals was studied, particularly the microstructure and mechanical properties of ultrasonic welded joints. Results show that 1060 aluminum alloy and N4 nickel alloy dissimilar metals can be successfully welded by using USW, the joint has high toughness and strength. The USW parameters for successfully joining of aluminum and nickel dissimilar metal were determined, i.e. the welding pressure and welding time were in the range of 25.2 MPa~36.0 MPa and 75 ms~85 ms, respectively. Shear strength of the joint welded at 85ms and 32.4 MPa was higher than that of the aluminum base metal. Furthermore, the XRD and EDS results show that only Al and Ni elements were found at the interface, forming a 2 μm diffusion layer, but no intermetallic compounds appeared.
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    • 参考文献(13)
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  • 收稿日期:  2015-09-05

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