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旋转电弧窄间隙焊温度场和侧壁熔深的数值模拟

黎文航, 胡婷, 刘川, 王加友, 王淼

黎文航, 胡婷, 刘川, 王加友, 王淼. 旋转电弧窄间隙焊温度场和侧壁熔深的数值模拟[J]. 焊接学报, 2015, 36(8): 5-8.
引用本文: 黎文航, 胡婷, 刘川, 王加友, 王淼. 旋转电弧窄间隙焊温度场和侧壁熔深的数值模拟[J]. 焊接学报, 2015, 36(8): 5-8.
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LI Wenhang, HU Ting, LIU Chuan, WANG Jiayou, WANG Miao. Rotating arc narrow gap welding numerical simulation of temperature field and side wall penetration[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(8): 5-8.
Citation: LI Wenhang, HU Ting, LIU Chuan, WANG Jiayou, WANG Miao. Rotating arc narrow gap welding numerical simulation of temperature field and side wall penetration[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(8): 5-8.
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旋转电弧窄间隙焊温度场和侧壁熔深的数值模拟

  • 1.

    江苏科技大学材料科学与工程学院, 镇江 212003

  • 2.

    南京鹏力科技有限公司, 南京 211106

基金项目: 国家自然科学基金资助项目(51005107,51475218);"高档数控机床与基础制造装备"科技重大专项资助项目(2012ZX04008031);江苏省青蓝工程科技创新团队、优秀青年骨干教师资助项目

Rotating arc narrow gap welding numerical simulation of temperature field and side wall penetration

  • 1.

    School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

  • 2.

    Nanjing Pride Technology Co., Ltd., Nanjing 211106, China

摘要

    摘要
  • 摘要: 针对旋转电弧窄间隙MAG焊焊缝成形研究需要,采用Ansys软件对旋转电弧窄间隙MAG焊接温度场进行数值模拟,研究焊缝成形的影响因素.考虑旋转电弧窄间隙MAG焊特点,实现热源模型旋转加载和旋转电弧窄间隙焊接三维温度场数值计算,模拟温度场结果与试验焊缝形貌吻合良好.为进一步提高计算效率,根据热源等效和旋转电弧热源分布特点,提出了一种类似马鞍形圆环的等效热源,侧壁熔深模拟结果与实际较符合,且计算效率大为提高.研究结果为进一步的熔深控制和焊接变形研究奠定基础.
    Abstract: To meet the reserach demand of weld formation in narrow gap MAG welding, the welding temperature field was numerically simulated by Ansys to study the affecting factors. Considering the characteristics of this welding method, rotating load of the heat source model was realized and three-dimensional temperature field numerical calculation was obtained. The numerical simulation results of weld shape and the experimental results of actual welding were in good agreement. In order to further improve the computational efficiency, a similar saddle ring equivalent heat source was proposed according to heat equivalent and characteristic of heat source distribution. The simulation results of sidewall penetration agreed well with the practical measurement, and the calculation speed was greatly improved. The results were helpful for the further research on penetration control and welding deformation.
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    • 参考文献(7)
  • [1] 赵博,范成磊,杨春利.高速旋转电弧窄间隙MAG焊焊缝成形的分析[J].焊接学报, 2008, 29(9):109-112. Zhao Bo, Fan Chenglei, Yang Chunli, et al. Influence of welding parameters on bead formation in high-spin-arc narrow gap MAG[J]. Transactions of the China Welding Institution, 2008, 29(9):109-112.
    [2] Guo N, Lin S B, Gao C, et al. Study on elimination of interlayer defects in horizontal joints made by rotating arc narrow gap welding[J]. Science and Technology of Welding and Joining, 2009, 14(6):584-588.
    [3] 贾剑平,施辉飞,彭桃,等.基于ANSYS的旋转电弧焊接温度场的数值模拟[J].焊接技术, 2011, 40(6):14-17. Jia Jianping, Shi Huifei, Peng Tao, et al. Numerical simulation of rotating arc welding temperature field based on ANSYS[J]. Welding Technology, 2011, 40(6):14-17.
    [4] Guo N, Han Y F. A novel finite model of heat source for rotating arc welding[J]. China Welding, 2011, 20(3):58-63.
    [5] 胡军峰,杨建国,方洪渊,等.模拟焊接过程电弧摆动的热源模型[J].焊接学报, 2005, 26(6):57-60. Hu Junfeng, Yang Jianguo, Fang Hongyuan, et al. Pilot study of a heat source model for weaving welding arc[J]. Transactions of the China Welding Institution, 2005, 26(6):57-60.[6] 王加友,国宏斌,杨峰.新型高速旋转电弧窄间隙MAG焊接[J].焊接学报, 2005, 26(10):65-67. Wang Jiayou, Guo Hongbin, Yang Feng. A new rotating arc process for narrow gap MAG welding[J]. Transactions of the China Welding Institution, 2005, 26(10):65-67.[7] Michaleris P, Debiccari A. Prediction of welding distortion[J]. Welding Journal, 1997, 76(4):172s-181s.
    [6] 武传松.焊接热过程与熔池形态[M].北京:机械工业出版社, 2007.
    [7] Brown S, Song H. Finite element simulation of welding of large structures[J]. Journal of Engineering for Industry, 1992, 114(44):441-451.
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  • 收稿日期:  2014-04-24

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