| 弧焊过程的动态电阻波形分析 |
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| 引用本文： | 薛家祥,董飞,王振民,杨三国,洪森.弧焊过程的动态电阻波形分析[J].华南理工大学学报(自然科学版),2006,34(11):5-9. |
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| 作者姓名： | 薛家祥 董飞 王振民 杨三国 洪森 |
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| 作者单位： | 华南理工大学,机械工程学院,广东,广州,510640;华南理工大学,机械工程学院,广东,广州,510640;华南理工大学,机械工程学院,广东,广州,510640;华南理工大学,机械工程学院,广东,广州,510640;华南理工大学,机械工程学院,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金资助项目(04020100) |
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| 摘 要： | 利用自行研制的焊接动态电弧小波分析仪对两台CO2焊机的焊接过程进行了分析测试.结果表明,动态电阻能综合反映焊接电源的电气特性.起弧时动态电阻值应迅速上升到稳定值,以保证引弧顺利.在焊接过程中应减少动态电阻纹波干扰,其峰值维持一段时间有利于熔滴平稳过渡.收弧时动态电阻值应在一个过渡周期内,由峰值平稳上升至无穷大,避免尖峰.分析结果可为改进焊接工艺和波形控制方法提供依据.
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| 关 键 词： | 动态电阻 电弧稳定性 飞溅 波形分析 CO2焊 |
| 文章编号： | 1000-565X（2006）11-0005-05 |
| 收稿时间： | 2006-03-31 |
| 修稿时间： | 2006年3月31日 |
Analysis of Dynamic Resistance Waveforms in Arc Welding |
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| Xue Jia-xiang,Dong Fei,Wang Zhen-min,Yang San-guo,Hong Sen.Analysis of Dynamic Resistance Waveforms in Arc Welding[J].Journal of South China University of Technology(Natural Science Edition),2006,34(11):5-9. |
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| Authors: | Xue Jia-xiang Dong Fei Wang Zhen-min Yang San-guo Hong Sen |
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| Institution: | School of Mechanical Engineering, South China Univ. of Tech. , Guangzhou 510640, Guangdong, China |
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| Abstract: | The welding processes of two CO_2 arc-welding machines were tested and analyzed using a self-developed welding dynamic arc wavelet analyzer.The results indicate that the integrated electric characteristics of welding power can be reflected by the dynamic resistance,that the dynamic resistance should quickly increase to a stable value to make the striking successful,that the ripple interference of dynamic resistance should be reduced and the peak value of dynamic resistance should remain constant in a certain period to realize a smooth droplet transfer in the welding process,and that the dynamic resistance should smoothly increase from the peak value to a infinite va-(lue) in a transition cycle to avoid an abrupt ascend in the process of arc extinguishing.All these results lay a foundation for the improvement of arc welding technology and arc waveform control. |
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| Keywords: | dynamic resistance arc stability spatter waveform analysis carbon dioxide arc welding |
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