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焊接裂纹磁场模拟及磁光成像检测

马女杰, 高向东, 代欣欣, 张南峰

马女杰, 高向东, 代欣欣, 张南峰. 焊接裂纹磁场模拟及磁光成像检测[J]. 焊接学报, 2019, 40(9): 77-81. DOI: 10.12073/j.hjxb.2019400239
引用本文: 马女杰, 高向东, 代欣欣, 张南峰. 焊接裂纹磁场模拟及磁光成像检测[J]. 焊接学报, 2019, 40(9): 77-81. DOI: 10.12073/j.hjxb.2019400239
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MA Nüjie, GAO Xiangdong, DAI Xinxin, ZHANG Nanfeng. Magnetic field characteristic simulation and magneto-optical imaging detection of weld cracks[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(9): 77-81. DOI: 10.12073/j.hjxb.2019400239
Citation: MA Nüjie, GAO Xiangdong, DAI Xinxin, ZHANG Nanfeng. Magnetic field characteristic simulation and magneto-optical imaging detection of weld cracks[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(9): 77-81. DOI: 10.12073/j.hjxb.2019400239
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焊接裂纹磁场模拟及磁光成像检测

  • 广东工业大学 广东省焊接工程技术研究中心, 广州 510006

基金项目: 国家自然科学基金资助项目（51675104）；广东省教育厅创新团队项目（2017KCXTD010）

Magnetic field characteristic simulation and magneto-optical imaging detection of weld cracks

  • School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China

摘要

    摘要
  • 摘要: 研究交变磁场下的焊缝裂纹磁化规律，针对碳钢（Q235）焊缝裂纹，进行交变电磁场励磁下焊缝磁光成像无损检测的仿真和试验. 基于交变励磁下焊缝励磁规律的仿真模型，研究裂纹间隙分别为0.03，0.05，0.07和0.1 mm的焊缝表面磁通密度（磁感应强度）模曲线分布差异. 钢板对接间隙分别限定为0.03，0.05，0.07和0.1 mm后，通过激光焊接钢板两端来模拟仿真试验中的裂纹. 进行磁光成像无损检测试验，并将试验结果与仿真结果进行对比. 结果表明，在仿真试验与工艺试验中，焊接裂纹感应磁场的变化规律基本相同，磁感应强度不会因采样起始点不同出现较大的差异.
    Abstract: Simulation and experiment of magneto-optical imaging non-destructive testing of weld under alternating electromagnetic field were carried out. The weld crack magnetization under the alternating magnetic field of carbon steel (Q235) was studied. Based on a simulation model of alternating magnetic field excitation, the magnetic field density (magnetic flux density) curve distribution of the weld crack with 0.03, 0.05, 0.07 and 0.1 mm gaps were analyzed. Simulation results were verified by the magneto-optical imaging nondestructive testing system. Experimental results show that the weld cracks of different gaps have the same shape of the flux density mode curve, and there is significant difference between N pole and S pole. The amplitude of the flux density curve and the transition area will decrease as the crack gap decreases.
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    • 参考文献(11)
  • [1] 张元良,张洪潮,赵嘉旭,等.高端机械装备再制造无损检测综述[J].机械工程学报, 2013, 53(7):80-90 Zhang Yuanliang, Zhang Hongchao, Zhao Jiaxu, et al. Review of non-destructive testing for remanufacturing of high end equipment[J]. Journal of Mechanical Engineering, 2013, 53(7):80-90
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    [6] 莫玲,高向东,萧振林,等.激光焊磁光彩色成像焊缝检测方法[J].焊接学报, 2016, 37(1):37-40 Mo Ling, Gao Xiangdong, Xiao Zhenlin, et al. Weld detection of laser welding using magneto-optical color imaging[J]. Transactions of the China Welding Institution, 2016, 37(1):37-40
    [7] Cheng Y, Deng Y, Bai L, et al. Enhanced laser-based magneto-optic imaging system for nondestructive evaluation applications[J]. IEEE Transactions on Instrumentation and Measurement, 2013, 62(5):1192-1198.
    [8] Richert H, Schmidt H, Lindner S, et al. Dynamic magneto-optical imaging of domains in grain oriented electrical steel[J]. Steel Research, 2016, 87(2):232-240.
    [9] 高向东,蓝重洲,陈子琴,等.焊接缺陷磁光成像动态检测与识别[J].光学精密工程, 2017, 25(5):1135-1141 Gao Xiangdong, Lan Chongzhou, Chen Ziqin, et al. Dynamic detection and recognition of welded defects based on magneto-optical imaging[J]. Editorial Office of Optics and Precision Engineering, 2017, 25(5):1135-1141
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    [11] Gao Xiangdong, Ma Nüjie, Du Liangliang. Magneto-optical imaging characteristics of weld defects under alternating magnetic field excitation[J]. Optics Express, 2018, 26(8):9972.
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  • 收稿日期:  2018-06-21

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