Advanced Search
MA Guolong, LEI Zhen, MA Yin, XU Liang, HAN Xiaohui. Effect of heat input on microstructure and properties of aluminum alloy with laser-TIG hybrid welding[J]. WELDING & JOINING, 2019, (12): 7-10. DOI: 10.12073/j.hj.20190620003
Citation: MA Guolong, LEI Zhen, MA Yin, XU Liang, HAN Xiaohui. Effect of heat input on microstructure and properties of aluminum alloy with laser-TIG hybrid welding[J]. WELDING & JOINING, 2019, (12): 7-10. DOI: 10.12073/j.hj.20190620003
shu

Effect of heat input on microstructure and properties of aluminum alloy with laser-TIG hybrid welding

  • 1. CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, Shandong, China;

  • 2. Harbin Welding Institute Limited Company, Harbin 150028, China

More Information
  • Received Date: June 19, 2019
    Graphical Abstract
    • Abstract
  • Weld forming,tensile properties,fracture characteristics,hardness characteristics and microstructure characteristics of joints were studied under different heat inputs by laser-arc hybrid welding. The results showed that,under conditions of the experiment,the heat input of+ 7 mm defocus was 1. 6 times as much as that of + 5 mm defocus,and welds became wide under high heat input. The back width of welds under + 7 mm defocus was 1. 2 times that of welds under + 5 mm defocus. Tensile properties of joints decreased,tensile strength of + 5 mm defocus and + 7 mm defocus was 88% and 82% of the base metal respectively,and elongation after fracture was 96% and 48% of the base metal respectively. Under high heat input,dimples at the fracture were relatively shallow and microhardness decreased. Precipitated particles in weld and fusion zone were more,fine and dispersed under lower heat input,while they were less and coarse under higher heat input,namely they gathered and grew up.
    • FullText(HTML)
    • References (9)
  • [1]
    雷正龙,李颖,陈彦宾,等.双光束激光填丝焊工艺对铝合金焊接气孔率的影响[J].焊接学报,2013,34(2):40-44.
    [2]
    杨海锋.铝合金高功率双光束激光及与TIG复合焊接特性研究[D].哈尔滨:哈尔滨焊接研究所,2016.
    [3]
    杨海锋,梁小梅,王吉孝,等.5A06铝合金激光-TIG电弧复合填丝焊的特性[J].焊接,2016(6):30-34.
    [4]
    Harooni M,Carlson B,Kovacevic R.Dual-beam laser welding of AZ31B magnesium alloy in zero-gap lap joint configuration[J].Optics and Laser Technology,2014,56:247 -255.
    [5]
    夏佩云,夏令,余海松,等.6061铝合金激光填丝焊接接头组织与性能[J].焊接,2018(6):51-54.
    [6]
    张亚亮,刘佳,石岩,等.电流/电压匹配对铝合金激光-TIG复合焊接过程稳定性的影响[J].焊接学报,2018,39(1):79-83.
    [7]
    杨大伟,陈树海,黄继华,等.6005A铝合金激光-TIG复合热源填丝焊接技术[J].焊接学报,2017,38(10):51-54.
    [8]
    黄瑞生,杨海锋,王君宇,等.铝合金双光束/单光束激光-TIG复合焊[J].焊接,2017(1):39-42.
    [9]
    杨海锋,黄瑞生,常云峰,等.双光束激光-TIG复合焊电弧特性分析[J].焊接,2016(12):41-45.
    • Related Articles

  • Related Articles

    [1]Wang Jiawei, Wu Wei, Ma Yueting, Huang Libing, Dong Honggang. Microstructure and mechanical properties of 5083 aluminum alloy with MIG welding[J]. WELDING & JOINING, 2022, (11). DOI: 10.12073/j.hj.20220112002
    [2]Liu Gang, Wang Lifan, Zhu Lei, Zhang Xi, Xie Fang, Peng Yinli. Microstructure and properties of 6061 aluminum alloy welded joint by FSW[J]. WELDING & JOINING, 2022, (1). DOI: 10.12073/j.hj.20210901002
    [3]FAN Jikang, NI Cheng, XU Honglin, PENG Yong, SONG Youmin, WANG Kehong. Microstructure and mechanical properties of 3003 aluminum alloy by laser welding[J]. WELDING & JOINING, 2021, (3): 22-25. DOI: 10.12073/j.hj.20201218001
    [4]LIU Lala, LIU Zhuhuan, SHI Tao, GUO Chunfei, WANG Yong. Microstructure and properties of resistance spot welded joint of dissimilar aluminum alloys[J]. WELDING & JOINING, 2020, (5): 53-56. DOI: 10.12073/j.hj.20200426002
    [5]DING Jikun, SONG Jianling, HAN Guoliang, TIAN Long, GAO Zefeng. Microstructure and properties of VPTIG welded joints of 2219 aluminum alloy thick plate[J]. WELDING & JOINING, 2020, (4): 47-51. DOI: 10.12073/j.hj.20191220001
    [6]HAN Guoliang, SONG Jianling, DING Jikun, DENG Lifen, YU Pengpeng. Effect of welding heat input on the performance of 2219 thin plate aluminum alloy welded joint[J]. WELDING & JOINING, 2020, (1): 51-54. DOI: 10.12073/j.hj.20191014002
    [7]XIA Peiyun, XIA Ling, YU Haisong, FENG Xiaosong, ZHAN Xiaohong. Microstructure and mechanical properties of 6061 aluminum alloy butt joint welded by laser welding with filler wire[J]. WELDING & JOINING, 2018, (6): 51-54.
    [8]LEI Zhenglong, XIONG Ying, LI Bingyu, HAI Weidong, WEI Guoqiang. Effect of heat input on microstructures and mechanical properties of Q890/Q550 dissimilar steel joint by laser－MAG hybrid welding[J]. WELDING & JOINING, 2018, (5): 5-11.
    [9]Zuo Yong, Tian Yu, Liu Tao. Microstructure and properties of aluminum 6061/copper H60 welded joint by tig conduction welding[J]. WELDING & JOINING, 2017, (8): 43-47.
    [10]Chen Chao, Chen Furong, Zhang Huijing. Effect of welding heat input on structure and properties of fiber laser welded joints of 7A52 aluminum alloy[J]. WELDING & JOINING, 2017, (1): 35-38.

  • Cited by

    Periodical cited type(2)

    1. 王柏霖. 铝合金焊接工艺在动车组的应用综述. 铝加工. 2023(04): 9-13 .
    2. 吴雁，李朝阳，郭立新，肖礼军，孙士学. 焊接工艺参数对铝/铝激光焊焊缝形貌及力学性能的影响. 焊接. 2021(11): 27-30+47+62-63 . 本站查看

    Other cited types(4)

Catalog

    Get Citation
    PDF
    XML
    Article views (40) PDF downloads (25) Cited by(6)
    Turn off MathJax
    Article Contents
    Abstract
    References
    Related Articles

    Website Copyright © Editorial Office of Welding & Joining, Welding Journals Publishing House

    Address： No. 2077, Chuangxin Road, Songbei District, Harbin Postal Code:150028 Tel：0451-86325919

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return