高级检索

YAG激光焊接脉冲能量作用效应的声发射特征参数表征

朱洋, 罗怡, 谢小健, 万瑞

朱洋, 罗怡, 谢小健, 万瑞. YAG激光焊接脉冲能量作用效应的声发射特征参数表征[J]. 焊接学报, 2017, 38(2): 115-119.
引用本文: 朱洋, 罗怡, 谢小健, 万瑞. YAG激光焊接脉冲能量作用效应的声发射特征参数表征[J]. 焊接学报, 2017, 38(2): 115-119.
shu
ZHU Yang, LUO Yi, XIE Xiaojian, WAN Rui. Characterization of impact effect of pulse energy based on feature parameters of acoustic emission signals detected in YAG laser welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(2): 115-119.
Citation: ZHU Yang, LUO Yi, XIE Xiaojian, WAN Rui. Characterization of impact effect of pulse energy based on feature parameters of acoustic emission signals detected in YAG laser welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(2): 115-119.
shu

YAG激光焊接脉冲能量作用效应的声发射特征参数表征

  • 重庆理工大学 材料科学与工程学院, 重庆 400054;重庆市特种焊接材料与技术高校工程研究中心, 重庆 400054

基金项目: 重庆市教委科学技术研究项目（KJ1400930）；重庆市高等学校青年骨干教师资助计划；特种焊接材料与技术重庆市高校工程研究中心开放课题基金资助项目（SWMT201501）

Characterization of impact effect of pulse energy based on feature parameters of acoustic emission signals detected in YAG laser welding

  • School of Materials and Engineering, Chongqing University of Technology, Chongqing 400054, China;Chongqing Municipal Engineering Research Center of Institutions of Higher Education for Special Welding Materials and Technology, Chongqing 400054,China

摘要

    摘要
  • 摘要: 对304不锈钢进行脉冲激光焊接试验，基于激光热源与工件相互作用所释放的声发射信号，研究利用声发射事件的平均峰值-振铃计数特征分布图评估焊接稳定性的方法.结果表明，脉冲激光对材料的作用越稳定，平均峰值-振铃计数特征分布图的散点分布聚集性越好；脉冲激光对材料的作用稳定性越差，平均峰值-振铃计数特征分布图的散点分布越发散.激光脉冲峰值功率增加时，对应声发射事件平均峰值和振铃计数均随之增加，反映出振铃计数对峰值功率变化而引发的焊接稳定性变化更为敏感.因此平均峰值-振铃计数特征分布图能够较为准确地表征激光焊接过程稳定性.
    Abstract: Pulse YAG laser welding was used for the welding of stainless steel. The stability of welding process was studied based on the structure-borne acoustic emission (AE) signals released by the interaction effect of laser heat source and materials researched, which was characterized by scatters feature distribution of average peak-AE count. The result showed that the scatters distribution aggregation of average peak-AE count feature distribution was better as the process of pulse laser welding was stable. Conversely, the scatters distribution aggregation was more divergent. With the increase of laser pulse peak power, the average peak and AE counts of laser pulse AE event increased, which indicated that the AE count was more sensitive to the stability fluctuation of welding process induced by the laser pulse peak power. Consequently, it was possible to characterize the stability of laser welding process by the methodology of scatters feature distribution of average peak-AE count.
    • HTML全文
    • 参考文献(8)
  • [1] 游德勇, 高向东. 激光焊接技术的研究现状与展望[J]. 焊接技术, 2008, 37(4):5-9. You Deyong, Gao Xiangdong. Studies and prospect of laser welding technology[J]. Welding Technology, 2008, 37(4):5-9.
    [2] 王春明, 胡伦骥, 胡席远, 等. 钛合金激光焊接过程中等离子体光信号的检查与分析[J]. 焊接学报, 2004, 25(1):83-86. Wang Chunming, Hu Lunji, Hu Xiyuan, et al. Mesurement and analysis of plasma optic signal during laser welding of titanium alloy[J]. Transactions of the China Welding Institution, 2004, 25(1):83-86.
    [3] 陈 涛, 王志勇, 丁 岳, 等. 脉冲激光(固体YAG)焊接中参数制约的分析[J]. 应用激光, 1998, 18(4):145-147. Chen Tao, Wang Zhiyong, Ding Yue, et al. Interact of selected parameters in pulsed laser welding[J]. Applied Laser, 1998, 18(4):145-147.
    [4] 张 婧, 单际国, 雷 祥, 等. 铝合金脉冲YAG激光焊脉冲调制参数对焊缝形状参数的影响[J]. 焊接学报, 2008, 29(3):21-24. Zhang Jing, Shan Jiguo, Lei Xiang, et al.Effects of parameters on weld shape parameters during pulsed Nd-YAG laser welding of aluminum alloys[J]. Transactions of the China Welding Institution, 2008, 29(3):21-24.
    [5] Zhang Zhifen, Chen Shanben. Real-time seam penetration identification in arc welding based on fusion of sound, voltage and spectrum signals[J]. Journal of Intelligent Manufacturing, 2017, 28(1):207-218.
    [6] 罗 怡, 朱成华, 李京龙. 电阻点焊熔核形核信息的声发射信号表征[J]. 焊接学报, 2013, 34(7):77-80. Luo Yi, Zhu Chenghua, Li Jinglong. Characterization of nugget nucleation information by acoustic emission signals during resistance spot welding[J]. Transactions of the China Welding Institution, 2013, 34(7):77-80.
    [7] Primoz Podrzaj, Ivan Polajnar, Janez Diaci, et al. Estimating the strength of resistance spot welds based on sonic emission[J]. Science and Technology of Welding and Joining, 2005, 10(4):399-405.
    [8] 罗 怡. 基于结构负载声发射检测的低碳钢板电阻点焊飞溅表征[J]. 机械工程学报, 2014, 50(14):150-154. Luo Yi. Expulsion characterization for resistance spot welding of low carbon steel based on structure-borne acoustic emission signals detection[J]. Journal of Mechanical Engineering, 2014, 50(14):150-154.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  313
  • HTML全文浏览量:  3
  • PDF下载量:  116
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-02-11

目录

摘要
HTML全文
    参考文献(8)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    网站版权 © 焊接杂志社焊接学报编辑部电话：0451-86323218地址：哈尔滨市松北区创新路2077号

    本系统由 北京仁和汇智信息技术有限公司 开发  百度统计