| An analysis of the dynamic resistance and the instantaneous energy of the CO2 arc welding process |
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| 作者姓名： | 王振民 薛家祥 董飞 杨国华 陆晓明 |
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| 作者单位： | School of Mechanical Engineering, South China University of Technology, Guangzhou, 510640 |
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| 摘 要： | A self-developed welding dynamic arc wavelet analyzer was adopted to analyze and assess the welding process of two CO2 arc welding machines. The experimental results indicate that the instantaneous energy can reflect the influence of the welding current and voltage on dynamic arc characteristic synthetically. Through calculating and analyzing the instantaneous energy, the energy during arc ignition and short circuit in CO2 welding process can be confirmed rationally, thus the foundation for the accurate design and control of the welding current and voltage can be provided. By reducing the ripple disturbance of the dynamic resistance, avoiding peak current and voltage waveform,and enhancing the transition frequency of short circuit suitably, the stability of the welding arc and the weld appearance can be improved.
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| 关 键 词： | 二氧化碳保护电弧焊 瞬时能量 动态电阻 电弧稳定性 |
An analysis of the dynamic resistance and the instantaneous energy of the CO2 arc welding process |
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| Wang Zhenmin,Xue Jiaxiang,Dong Fei,Yang Guohua,Lu Xiaoming.An analysis of the dynamic resistance and the instantaneous energy of the CO2 arc welding process[J].China Welding,2007,16(1):77-82. |
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| Authors: | Wang Zhenmin Xue Jiaxiang Dong Fei Yang Guohua Lu Xiaoming |
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| Abstract: | A self-developed welding dynamic arc wavelet analyzer was adopted to analyze and assess the welding process of two CO2 arc welding machines. The experimental results indicate that the instantaneous energy can reflect the influence of the welding current and voltage on dynamic arc characteristic synthetically. Through calculating and analyzing the instantaneous energy, the energy during arc ignition and short circuit in CO2 welding process can be confirmed rationally, thus the foundation for the accurate design and control of the welding current and voltage can be provided. By reducing the ripple disturbance of the dynamic resistance, avoiding peak current and voltage waveform , and enhancing the transition frequency of short circuit suitably, the stability of the welding arc and the weld appearance can be improved. |
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| Keywords: | instantaneous energy dynamic resistance arc stability repeatability of waveform |
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