| Application of the wavelet packet and its energy spectrum to identify nugget splash during the aluminum alloys spot welding |
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| 引用本文： | 罗震,单平,胡绳荪,廉金瑞,易小林,薛伟峰. Application of the wavelet packet and its energy spectrum to identify nugget splash during the aluminum alloys spot welding[J]. 中国焊接, 2003, 12(2): 98-102 |
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| 作者姓名： | 罗震 单平 胡绳荪 廉金瑞 易小林 薛伟峰 |
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| 作者单位： | SchoolofMaterialScienceandEngineering,TianjinUniversity,300072 |
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| 摘 要： | Nugget splash during aluminum alloys spot welding has a detrimental effect on weld nugget integrity, strength and durability of the welded joints. This investigation is performed to identify nugget splash from voltage signals became these are easily accessible on-line. In the present work, we propose a novel method based on the wavelet packet transform and its energy spectrum for pattern recognition of splash signal. The result demonstrates that this novel method is more accuracy and a useful way of monitoring the spot welding quality.
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| 关 键 词： | 微波连接 铝合金焊接法 光谱分析 焊缝连接 |
Application of the wavelet packet and its energy spectrum to identify nugget splash during the aluminum alloys spot welding |
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| Luo Zhen,SHAN Ping,Hu Shengsun,Lian Jinrui,YI Xiaolin,Xue Weifeng. Application of the wavelet packet and its energy spectrum to identify nugget splash during the aluminum alloys spot welding[J]. China Welding, 2003, 12(2): 98-102 |
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| Authors: | Luo Zhen SHAN Ping Hu Shengsun Lian Jinrui YI Xiaolin Xue Weifeng |
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| Abstract: | Nugget splash during aluminum alloys spot welding has a detrimental effect on weld nugget integrity, strength and durability of the welded joints. This investigation is performed to identify nugget splash from voltage signals because these are easily accessible on-line. In the present work, we propose a novel method based on the wavelet packet transform and its energy spectrum for pattern recognition of splash signal. The result demonstrates that this novel method is more accuracy and a useful way of monitoring the spot welding quality. |
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| Keywords: | wavelet packet aluminum alloys spot welding energy spectrum identify splash |
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