Advanced Search
XING Yanshuang1, DANG Pengfei1, LI Feng1, LIU Xuesong2. Microstructure and mechanical properties of refill friction stir spot welded dissimilar 7075/6061 aluminum alloys[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 22-25. DOI: 10.12073/j.hjxb.2018390006
Citation: XING Yanshuang1, DANG Pengfei1, LI Feng1, LIU Xuesong2. Microstructure and mechanical properties of refill friction stir spot welded dissimilar 7075/6061 aluminum alloys[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 22-25. DOI: 10.12073/j.hjxb.2018390006

Microstructure and mechanical properties of refill friction stir spot welded dissimilar 7075/6061 aluminum alloys

More Information
  • Received Date: September 24, 2017
  • The microstructure and lap shear properties of refill friction stir spot welded dissimilar 7075/6061 aluminum alloys joints were studied. 7075 aluminum alloy was used as the upper sheet. The effect of sleeve plunge depth on joint formation and mechanical properties were discussed. The results showed that defect-free joints were obtained when plunge depth was small that the upper sheet was just penetrated. Defects such as void, tear and incomplete refilling appeared in the weld as the sleeve plunge depth increased. Hook and lap interface at joint center, which is critical to the mechanical properties of the joint, was well jointed when shoulder plunge depth was small. The fracturing load was firstly increased and then decreased with the increase of sleeve plunge depth. The maximum fracturing load was 7 236 N when using 3.4 mm.
  • 申志康, 杨新岐, 张照华, 等. 铝合金回填式搅拌摩擦点焊组织及力学性能分析[J]. 焊接学报, 2013, 34(6): 73-76.Shen Zhikang, Yang Xinqi, Zhang Zhaohua,et al. Analysis of microstructure and mechanical properties of refill friction stir spot welded aluminum alloy[J]. Transactions of the China Welding Institution, 2013, 34(6): 73-76.[2] Li Z, Ji S, Ma Y,et al. Fracture mechanism of refill friction stir spot welded 2024-T4 aluminum alloy[J]. International Journal of Advanced Manufacturing Technology, 2016, 86(5): 1925-1932.[3] 李政玮. 铝合金RFSSW的材料流动规律及力学性能研究[D]. 沈阳: 沈阳航空航天大学, 2014.[4] Suhuddin U F H, Fischer V, Dos Santos J F. The thermal cycle during the dissimilar friction spot welding of aluminum and magnesium alloy[J]. Scripta Materialia, 2013, 68: 87-90.[5] 朱小刚, 王联凤, 乔凤斌, 等. 6061-T6铝合金回填式搅拌摩擦点焊疲劳性能分析[J]. 焊接学报, 2014, 35(4): 91-94.Zhu Xiaogang, Wang Lianfeng, Qiao Fengbin,et al. Fatigue failure analysis of 6061-T6 aluminum alloy refilled friction stir spot welding[J]. Transactions of the China Welding Institution, 2014, 35(4): 91-94.[6] Li Z, Gao S, Ji S,et al. Effect of rotational speed on microstructure and mechanical properties of refill friction stir spot welded 2024 Al alloy[J]. Journal of Materials Engineering and Performance, 2016, 25(4): 1673-1682.[7] 岳玉梅, 李政玮, 马轶男, 等. 下扎深度对回填式搅拌摩擦点焊接头断裂行为的影响[J]. 西安交通大学学报, 2015, 49(8): 122-127.Yue Yumei, Li Zhengwei, Ma Yinan,et al. Effect of plunge depth on fracture behavior of refill friction stir spot welding[J]. Journal of Xi’an Jiaotong University, 2015, 49(8): 122-127.[8] Zhao Y Q, Liu H J, Chen S X,et al. Effects of sleeve plunge depth on microstructures and mechanical properties of friction spot welded alclad 7B04-T74 aluminum alloy[J]. Materials & Design, 2014, 62: 40-46.[9] Yin Y H, Sun N, North T H,et al. Hook formation and mechanical properties in AZ31 friction stir spot welds[J]. Journal of Materials Processing Technology, 2010, 210: 2062-2070.
  • Related Articles

    [1]HUANG Jiqiang, GAI Shouxin, XUE Long, HUANG Junfen, CAO Yingyu, ZOU Yong. Multi-pass welding strategy for thick plate with mismatched groove by robot[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(6): 60-66. DOI: 10.12073/j.hjxb.20191127002
    [2]CHEN Jie, WANG Yuhua, ZHU Zhenxin, XIAO Jun, ZHAN Xiaohong. Numerical simulation of multi-layer and multi-passes welding anti-deformation for thick plate Invar alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(4): 84-89. DOI: 10.12073/j.hjxb.2019400105
    [3]LIU Yanjing<sup>1</sup>, CUI Haichao<sup>1,2</sup>, LU Fenggui<sup>1</sup>, TANG Xinhua<sup>1</sup>, LI Fuquan<sup>2</sup>. Research on the fracture toughness of micro zone in the joint based on multi-layer and multi-pass welding of rotor steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(9): 105-108. DOI: 10.12073/j.hjxb.2018390233
    [4]SUN Jiamin, DENG Dean, YE Yanhong, HE Jing, XIA Linying. Numerical simulation of welding residual stress in multi-pass T-joint of thick Q390 high strength steel plate using instantaneous heat source[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(7): 31-34,38.
    [5]XU Guoxiang, DU Baoshuai, DONG Zaisheng, ZHU Jing. Finite element anlysis of temperature field in multi-pass welding of thick steel plate[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (5): 87-90.
    [6]ZHU Jindan, CHEN Hu, GONG Jianming, TU Shandong. Discussion on numerical simulation of multi-pass welding of thin-plate based on shell element[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (11): 105-108.
    [7]MA Lin, YUAN Jinping, ZHANG Ping, ZHAO Junjun. Finite numerical simulation of temperature field in multi-pass laser cladding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (7): 109-112.
    [8]JIANG You-qing, GU Lei, LIU Jian-hua. Temperature field numerical simulation of YAG-MIG hybrid welding process for thick aluminum alloy plate[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (6): 104-107.
    [9]MENG Qing-guo, FANG Hong-yuan, XU Wen-li, JI Shu-de. Numerical simulation of muli-pass welding temperature field taking account of metal filling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (5): 53-55,59.
    [10]YANG Guang-chen, XUE Zhong-ming, ZHANG Yan-hua. Prediction of angular distortion in thick plate multi-pass weld[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (1): 115-118.
  • Cited by

    Periodical cited type(1)

    1. 闫非凡,许强. 收发组件返修过程中多功能芯片失效原因及解决方法. 航空维修与工程. 2025(04): 54-56 .

    Other cited types(1)

Catalog

    Article views (818) PDF downloads (3) Cited by(2)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return