| 电弧声与铝合金脉冲MIG焊熔滴过渡的相关性 |
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| 引用本文： | 石玗,黄健康,聂晶,樊丁.电弧声与铝合金脉冲MIG焊熔滴过渡的相关性[J].焊接学报,2009,30(3):29-32. |
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| 作者姓名： | 石玗 黄健康 聂晶 樊丁 |
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| 作者单位： | 1. 兰州理工大学,有色金属合金及加工教育部重点实验室,兰州,730050
2. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050 |
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| 基金项目： | 国家自然科学基金，国家自然科学国际合作基金，教育部"春晖计划"项目，甘肃省教育厅基金 |
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| 摘 要： | 对铝合金脉冲MIG焊过程中电弧声信号与熔滴过渡之间的相关性进行了研究.建立了焊接电弧声信号的计算机采集系统,在此基础上分别利用小波去噪、功率谱密度分析和ARMA(auto regressive and moving average,自相关滑动平均模型)双谱估计等信号处理方法对不同熔滴过渡方式下的电弧声信号进行了分析.三种方法的分析结果均表明熔滴过渡为短路过渡、大滴过渡、射滴过渡、和射流过渡时焊接电弧声具有不同的特征,证明利用电弧声能够对铝合金脉冲MIG焊过程中出现的不同熔滴过渡进行有效地区分.为铝合金脉冲MIG焊熔滴过渡稳定性实时控制和检测提供了一种有效的手段.
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| 关 键 词： | 铝合金脉冲MIG焊 熔滴过渡 电弧声 实时检测 |
| 收稿时间： | 2008/1/16 0:00:00 |
Correlation of arc acoustic signals and droplet transfer in aluminum pulsed MIG welding |
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| SHI Yu,HUANG Jiankang,NIE Jing and FAN Ding.Correlation of arc acoustic signals and droplet transfer in aluminum pulsed MIG welding[J].Transactions of The China Welding Institution,2009,30(3):29-32. |
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| Authors: | SHI Yu HUANG Jiankang NIE Jing and FAN Ding |
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| Affiliation: | 1.Key Laboratory of Non-ferrous Metal Alloys and Processing of Ministry of Education;Lanzhou University of Technology;Lanzhou 730050;China;2.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials;China |
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| Abstract: | The correlation between arc acoustic signals and droplet transfer in aluminum pulsed MIG welding was studied.The arc sound signals under different droplet transfer were acquired by the designed experimental system and analyzed by using the metheds of the wavelet de-noising,the power spectral density and the power spectral estimation of auto regressive and moving average.The analysis results show that the arc acoustic signals have different characters under short-circuit transfer,global transfer,projected dr... |
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| Keywords: | aluminum pulsed MIG welding droplet transfer arc acoustic signals real-time detecting |
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