文章摘要
熊永锋,廖祯松,马天宇,等.铝-铜外导槽式磁脉冲焊接接头组织与性能[J].精密成形工程,2019,11(6):170-177.
XIONG Yong-feng,LIAO Zhen-song,MA Tian-yu,et al.Microstructure and Properties of Aluminum-copper Joints Fabricated by Outer-channel Magnetic Pulse Welding[J].Journal of Netshape Forming Engineering,2019,11(6):170-177.
铝-铜外导槽式磁脉冲焊接接头组织与性能
Microstructure and Properties of Aluminum-copper Joints Fabricated by Outer-channel Magnetic Pulse Welding
投稿时间:2019-07-23  修订日期:2019-11-10
DOI:10.3969/j.issn.1674-6457.2019.06.025
中文关键词: 外导槽式磁脉冲焊接  铝-铜板  界面形貌  力学性能
英文关键词: outer-channel magnetic pulse welding  aluminum-copper plate  interface morphology  mechanical properties
基金项目:国家自然科学基金(51705081,51774097);福建省自然科学基金(2018J05079);福建省高校青年自然基金(JZ160417);2018年福建省高等学校新世纪优秀人才支持计划
作者单位
熊永锋 福州大学 机械工程及自动化学院福州 350108 
廖祯松 福州大学 机械工程及自动化学院福州 350108 
马天宇 福州大学 机械工程及自动化学院福州 350108 
邓将华 福州大学 机械工程及自动化学院福州 350108 
范治松 福州大学 机械工程及自动化学院福州 350108 
摘要点击次数: 2754
全文下载次数: 1954
中文摘要:
      目的 对铝板和铜板进行外导槽式磁脉冲焊接,研究不同晶粒度的母材对焊接接头界面形貌和力学性能的影响。方法 采用万能拉伸试验机、扫描电镜、EDS能谱以及显微硬度计等分析方法,观察焊接接头界面形貌,测试焊接接头的力学性能。结果 在电压9 kV,间隙2 mm的条件下,获得了铝板和不同退火温度的紫铜板外导槽式磁脉冲焊接接头;铜母材的晶粒度大小会影响铝-铜板焊接接头界面形貌,经450 ℃退火处理的铜板与铝母材形成界面波形最明显且过渡区厚度最大;过渡区是铝铜元素的混合区,宽过渡区界面形成稳定的化合物,如CuAl和CuAl2;焊缝处的显微硬度值总是比两侧母材的硬度值高,远离焊缝的硬度值保持稳定,未热处理的铜板与铝板形成的焊缝硬度最高。结论 铝-铜外导槽式磁脉冲焊接接头强度高于铝母材。
英文摘要:
      The paper aims to carry out outer-channel magnetic pulse welding of aluminum plate and copper plate to study the influence of base metal with different grain sizes on the interface morphology and mechanical properties of welded joints. Analytical methods such as universal tensile testing machine, scanning electron microscope, EDS spectrum and microhardness tester were used to observe the interface morphology of the joint and test the mechanical properties of the joint. Under the condition of voltage 9 kV and gap 2 mm, outer-channel magnetic pulse welded joints of aluminum plate and copper plate of different annealing temperature were obtained. The grain size of the copper base metal had an effect on the interface morphology of the aluminum-copper plate welded joint. The interface waveform between the copper plate and the aluminum base material which was annealed at 450 ℃ was the most obvious and the thickness of the transition zone was the largest. The transition zone was a mixed zone of aluminum and copper elements, and a wide transition zone interface formed stable compounds such as CuAl and CuAl2. The microhardness value at the weld was always higher than that of the base metal on both sides, and the hardness value away from the weld remained stable. The welds formed by the unheated copper and aluminum plates had the highest hardness. The joint strength of aluminum-copper outer-channel magnetic pulse welding is higher than that of the aluminum base material.
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