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激光焊接中的等离子体变化规律及气孔缺陷快速测试方法——检测信号整体分析方法

王旭友, 孙谦, 王威, 李小宇

王旭友, 孙谦, 王威, 李小宇. 激光焊接中的等离子体变化规律及气孔缺陷快速测试方法——检测信号整体分析方法[J]. 焊接学报, 2016, 37(3): 45-48.
引用本文: 王旭友, 孙谦, 王威, 李小宇. 激光焊接中的等离子体变化规律及气孔缺陷快速测试方法——检测信号整体分析方法[J]. 焊接学报, 2016, 37(3): 45-48.
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WANG Xuyou, SUN Qian, WANG Wei, Li Xiaoyu. Study on the changing ruler of plasma in laser welding and the quick testing method of blowhole defects——integral analysis method for signals detection[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(3): 45-48.
Citation: WANG Xuyou, SUN Qian, WANG Wei, Li Xiaoyu. Study on the changing ruler of plasma in laser welding and the quick testing method of blowhole defects——integral analysis method for signals detection[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(3): 45-48.
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激光焊接中的等离子体变化规律及气孔缺陷快速测试方法——检测信号整体分析方法

  • 哈尔滨焊接研究所, 哈尔滨 150028

基金项目: 国家"04"科技重大专项资助项目(2015ZX04002102)

Study on the changing ruler of plasma in laser welding and the quick testing method of blowhole defects——integral analysis method for signals detection

  • Harbin welding institute, Harbin 150028, China

摘要

    摘要
  • 摘要: 文中通过对激光焊接过程中等离子体面积信号线性轨迹和其整体分布情况的研究,发现其整体信号的分布特征与实际激光焊接条件密切相关.并由此提出了一种针对激光等离子体面积信号的整体分析方法,建立了激光等离子体面积信号整体分布特征模型.结果表明,该方法可有效去除激光等离子体信号中的随机干扰信号及信号波动对检测数据分析产生的不利影响,具有较好的可重复性及易识别特点,能够对激光焊接等离子体形态变化特征进行快速、准确的识别.
    Abstract: According to the study on linear track and global distribution of plasma size signals in laser welding, it is found that the global signals distribution feature of plasma has a close relationship with the real laser welding conditions. As aresults anew method based on integral analysis for plasma size signals and its transform feature model has been established in this paper. The results show that this method can not only effectly remove the random noise signals and the negative influence of the signals fluctuation during data treating process, but also has special features on its repeatability and legibility. Therefore, it is a quick and accurate way in testing the change of plasma morphology in laser welding.
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    • 参考文献(12)
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  • 收稿日期:  2014-05-29

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