Advanced Search
LI Chunkai1,2, SHI Yu1,2, DU Leiming1, GU Yufen1, ZHU Ming2. Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 75-78,88. DOI: 10.12073/j.hjxb.2018390017
Citation: LI Chunkai1,2, SHI Yu1,2, DU Leiming1, GU Yufen1, ZHU Ming2. Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(1): 75-78,88. DOI: 10.12073/j.hjxb.2018390017

Real-time measurement system based on laser photoelectric conversion for detecting weld pool oscillation frequency in continuous P-GTAW

More Information
  • Received Date: August 30, 2016
  • There exists a direct relationship between the weld pool oscillation frequency and volume of weld pool. But the detection of oscillation frequency in on-time travelling condition is difficult. In order to detect the oscillation frequency in real-time, a new laser photoelectric conversion method was proposed. Several experiments with travelling welding condition were conducted and the frequency was extracted by Fast Fourier Transform. The results show that image laser-vision method has a strong anti-disturbing ability and high signal-to-noise while the defect of image process is complex and real-time detection becomes worse. The laser photoelectric conversion method with high sampling rate, high processing speed and simple device can completely satisfy the requirement of measuring the oscillation frequency of weld pool in practical welding process.
  • Xiao Y.H, Ouden G D. A study of GTA weld pool oscillation[J]. Welding Journal, 1990, 31(8): 289-293.[2] 吴 林, 董德祥, 陈定华. 固定点状态下TIG焊接熔深信号的检测及分析[J]. 焊接学报, 1986, 7(2): 64-72.Wu Lin, Dong Dexiang, Chen Dinghua. Detection and analysis of welding penetration signal in stationary TIG arc welding[J]. Transactions of China Welding Institution, 1986, 7(2): 64-72.[3] Choog D Y, RICHARDSON R W. A experimental study on sensitivity and signal characteristics of weld pool oscillation[J]. Japan Welding Society, 1993,24(2):54-61.[4] 杨春利, 何景山, 王其隆. TIG焊变频电流下熔池谐振检测与研究[J]. 焊接学报, 2000, 21(2): 6-9.Yang Chunli, He Jingshan, Wang Qilong. Acquisition of molten pool resonance in TIG welding with fluctuant frequency current[J]. Transactions of the China Welding Institution, 2000, 21(2): 6-9.[5] 顾玉芬, 杜雷明, 李春凯, 等. 弧光法与激光视觉法检测熔池振荡特征的对比分析[J]. 焊接学报, 2016, 37(9): 18-22.Gu Yufen, Du Leiming, Li Chunkai,et al. Comparison analysis of arc light and laser vision sensing weld pool oscillation characteristic signals[J]. Transactions of the China Welding Institution, 2016, 37(9): 18-22.[6] Shi Y, Zhang G, Ma X J,et al. Laser-vision-based measurement and analysis of weld pool oscillation frequency in GTAW-P[J]. Welding Journal, 2015, 94(5): 176-187.
  • Related Articles

    [1]ZENG Da, WU Di, PENG Biao, DU Hui, WEI Yutong, ZHANG Peilei, ZHAN Xiaohong. Real-time detection of pseudo-defect in laser welding of power battery tabs based on photoelectric coaxial sensing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2024, 45(11): 110-114. DOI: 10.12073/j.hjxb.20240711001
    [2]HU Dan, LYU Bo, WANG Jingjing, GAO Xiangdong. Study on HOG-SVM detection method of weld surface defects using laser visual sensing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2023, 44(1): 57-62, 70. DOI: 10.12073/j.hjxb.20211231001
    [3]WANG Shuqiang, ZHOU You, CHEN Haolei, CHEN Zhao, HAN Yanlin. Image processing system of welding seam of steel structure based on laser vision[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(2): 101-105, 112. DOI: 10.12073/j.hjxb.20210603001
    [5]GU Yufen, DU Leiming, LI Chunkai, SHI Yu. Comparison analysis of arc light and laser vision sensing weld pool oscillation characteristic signals[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(9): 18-22.
    [6]LIU Suyi, LI Bing, ZHANG Hua, JIA Jianping. Feature extraction and image processing for underwater weld with laser vision[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (9): 45-48.
    [7]SHI Yu, WANG Haitao, XUE Cheng, LIU Xiaotian. Real-time visual detection of welding pool in double-electrode MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (2): 29-32.
    [8]HU Yanhua, CHEN Furong, XIE Ruijun, LI Haitao. In-situ detection of weld metal thermal cycle of 10CrMo910 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (10): 105-107.
    [9]FU Xibin, LIN Sanbao, YANG Chunli, FAN Chenglei, QIAN Xia. Inspection of fillet weld shape dimension based on laser vision sensing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (7): 47-50.
    [10]TIAN Songya, WU Dongchun, SUN Ye, FU Weiliang. Wavelet detection of short circuit signal in CO2 arc welding based on DSP[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (7): 65-68.
  • Cited by

    Periodical cited type(5)

    1. 李春凯,王嘉昕,石玗,代悦. GTAW熔池激光条纹动态行为与熔透预测方法研究. 机械工程学报. 2024(06): 236-244 .
    2. 赵建勋. 焊接过程光电信号测试分析系统软件的开发及应用. 焊接技术. 2023(05): 129-132 .
    3. 张海庆,韩军,吕德华. 分步式短脉冲激光时间分布特征快速识别模型构建. 激光杂志. 2021(03): 86-90 .
    4. 贾兰芳,周小芳. 混沌噪声背景下微弱激光信号的放大与检测技术. 激光杂志. 2019(11): 49-52 .
    5. 李红,王大镇,叶衔真,沈志煌. 复杂螺旋面飞秒激光加工精度检测系统设计. 激光杂志. 2019(12): 27-30 .

    Other cited types(4)

Catalog

    Article views (816) PDF downloads (0) Cited by(9)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return