Advanced Search
YUE Jianfeng, PENG Chaolong, LIU Wenji, ZHAO Jintao, LI Liangyu. Law of penetration and post-weld deformation of asymmetric fillet root welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(7): 28-36. DOI: 10.12073/j.hjxb.20200903001
Citation: YUE Jianfeng, PENG Chaolong, LIU Wenji, ZHAO Jintao, LI Liangyu. Law of penetration and post-weld deformation of asymmetric fillet root welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(7): 28-36. DOI: 10.12073/j.hjxb.20200903001

Law of penetration and post-weld deformation of asymmetric fillet root welding

More Information
  • Received Date: September 02, 2020
  • Available Online: August 30, 2021
  • Medium plate with T-fillet joints and one-side V-shaped grooves has the characteristics of low cost and high production efficiency. However, the two sides of the weld are asymmetrical, especially the thickness of the root structure is very different, and the welding heat conduction difference is uneven, so that the good full penetration forming is not easy to effectively guarantee, and the workpiece is often deformed after welding, which affects installation. In order to figure out the mechanism of welding heat conduction of asymmetric welding on penetration and welding deformation, the influence of energy distribution and the size of heat input on the heat conduction is considered. The equivalent Gauss heat source model is introduced in the temperature field simulation, which effectively improves the calculation accuracy. The method of simulation and experiment was used to analyze the penetration formation, stress field distribution and welding deformation comparatively. The results show that when the welding current is the same and the welding torch angle is 20°, the welding deformation is larger and the deformation of the base metal is increased by about 18%. When the welding torch angle is constant, the welding deformation increases with the increase of the welding current, and the maximum deformation is 2.595 2 mm. The relevant research reveals the law of asymmetric weld penetration and welding deformation, which provides theoretical support for the optimization of welding quality and process parameters of this kind of asymmetric fillet welding.
  • Zhu J, Khurshid M, Barsoum Z. Accuracy of computational welding mechanics methods for estimation of angular distortion and residual stresses[J]. Welding in the World, 2019, 63(5): 1391 − 1405. doi: 10.1007/s40194-019-00746-9
    Wang R, Zhang J X, Liu C, et al. Welding distortion investigation in fillet welded joint and structure based on iterative substructure method[J]. Science & Technology of Welding & Joining, 2013, 14(5): 396 − 403.
    Deng Dean, Kiyoshima S. Numerical simulation of welding temperature field, residual stress and deformation induced by electro slag welding[J]. Computational Materials Science, 2012, 62: 23 − 34. doi: 10.1016/j.commatsci.2012.04.037
    Lee J M, Seo H D, Chuang H. Efficient welding distortion analysis method for large welded structures[J]. Journal of Materials Processing Technology, 2018, 256: 36 − 50. doi: 10.1016/j.jmatprotec.2018.01.043
    朱志明, 符平坡, 杨中宇, 等. 电弧焊接数值模拟中热源模型的研究与发展[J]. 工程科学学报, 2018, 40(4): 389 − 396.

    Zhu Zhiming, Fu Pingpo, Yang Zhongyu, et al. Research and development of a heat-source model in numerical simulation for the arc welding process[J]. Chinese Journal of Engineering, 2018, 40(4): 389 − 396.
    Yue J, Dong X, Guo R, et al. Numerical simulation of equivalent heat source temperature field of asymmetrical fillet root welds[J]. International Journal of Heat and Mass Transfer, 2019, 130: 42 − 49. doi: 10.1016/j.ijheatmasstransfer.2018.10.075
    胥国祥, 武传松, 秦国梁, 等. 铝合金T型接头激光+GMAW复合热源焊温度场的有限元分析[J]. 金属学报, 2012, 48(9): 1033 − 1041. doi: 10.3724/SP.J.1037.2012.00174

    Xu Guoxiang, Wu Chuansong, Qing Guoliang, et al. Finite element analysis of temperature fleld in Laser+GMAW hybrid welding for T-joint of aluminum alloy[J]. Acta Metallurgica Sinica, 2012, 48(9): 1033 − 1041. doi: 10.3724/SP.J.1037.2012.00174
    杨建国, 周号, 雷靖, 等. 焊接应力与变形数值模拟领域的若干关键问题[J]. 焊接, 2014(3): 8 − 17.

    Yang Jianguo, Zhou Hao, Lei Jing, et al. Some key problems in the field of numerical simulation of welding stress and deformation[J]. Welding & Joining, 2014(3): 8 − 17.
    郑乔, 逯世杰, 李索, 等. 熔敷顺序和管壁厚度对异种钢管板接头焊接残余应力与变形的影响[J]. 机械工程学报, 2019, 55(6): 46 − 53. doi: 10.3901/JME.2019.06.046

    Zheng Qiao, Lu Shijie, Li Suo, et al. Influence of deposition sequence and thickness of tube on welding residual stress and deformation in dissimilar steel tube-block welded joint[J]. Journal of Mechanical Engineering, 2019, 55(6): 46 − 53. doi: 10.3901/JME.2019.06.046
    王者昌. 焊接应力变形原理若干问题的探讨(二)[J]. 焊接学报, 2008, 29(7): 69 − 72. doi: 10.3321/j.issn:0253-360X.2008.07.018

    Wang Zhechang. Discussion on principle of welding stress and distortion(2)[J]. Transactions of the China Welding Institution, 2008, 29(7): 69 − 72. doi: 10.3321/j.issn:0253-360X.2008.07.018
    Deng D, Luo Y, Serizawa H, et al. Numerical simulation of residual stress and deformation considering phase transformation effect[J]. Transactions of JWRI, 2003, 32(2): 325 − 333.
  • Related Articles

    [1]ZHANG Yuelai, HE Qinghe, ZHU Jiayi, LIANG Guihui, ZENG Jiongmeng, DENG Dean. Prediction of welding deformation in large long straight beams for locomotive[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2023, 44(9): 106-112. DOI: 10.12073/j.hjxb.20221213001
    [2]WANG Chenxi, TANG Wencheng. Numerical simulation of flange welding deformation based on dynamic constraint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(12): 67-73. DOI: 10.12073/j.hjxb.20200716003
    [3]TANG Qi, CHEN Peng, CHEN Jingqing, LIANG Yong, LIU Zan. Numerical simulation of welding deformation in laser hybrid welding based on SYSWELD[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(3): 32-36. DOI: 10.12073/j.hjxb.2019400067
    [4]HUANG Zunyue, LUO Zhen, AO Sansan, DONG Jiantao. Effect of welding sequence on welding deformation of fork structure[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(8): 31-34,44.
    [5]LI Jiangfei, QI Haibo, REN Deliang, GUO Yamei, ZHANG Wei. Numerical simulation of welding process on thin-walled multi-welds complex component[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(1): 87-90.
    [6]ZHOU Yijun, DENG Dean, FENG Ke, BI Tao. Numerical simulation of welding deformation in weld on thin low carbon steel plate[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (12): 101-104.
    [7]CHEN Zhanglan, XIONG Yunfeng. Numerical analysis on deformation of welded construction[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (5): 77-80.
    [8]YAN Dejun, LIU Xuesong, ZHOU Guangtao, FANG Hongyuan. Numerical analysis on optimizing welding sequence of large-sized bottom structure for controlling welding distortion[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (6): 55-58.
    [9]YAN Dongyang, WU Aiping, JIAO Haojun, NING Liqing, ZHOU Liangang. Numerical simulation of residual stress and deformation on laser welding of "grooved-coat" structure[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (11): 13-16.
    [10]Wang Jianhua, Zhong Xiaomin, Qi Xinhai. 3-D numerical simulation of deformations in pipe-plate joint with holes[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1995, (3): 140-145.

Catalog

    Article views (453) PDF downloads (38) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return