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Characterising thermoacoustic emission in alternating current spot welding process

Characterising thermoacoustic emission in alternating current spot welding process
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摘要 The acoustic emission of spot welding with thermoacoustic theory was studied in this paper, which provides new basis to analyze the quality of nugget with acoustic signal. The result shows that the thermoacoustic emission exists in both 5052 Al alloy and cold-rolled steel AC spot welding process and this process takes place later than the load of welding current, and the frequency of thermoacoustic is twice as that of the welding current. The amplitudes of thermoacoustic signals detected from different angles are different, which undergo an up-down-up process. The thermoacoustic emission shows different trends with the thickness increase in AC resistance spot welding experiment for 5052 Al alloy and cold-rolled steel. The acoustic emission of spot welding with thermoacoustic theory was studied in this paper, which provides new basis to analyze the quality of nugget with acoustic signal. The result shows that the thermoacoustic emission exists in both 5052 Al alloy and cold-rolled steel AC spot welding process and this process takes place later than the load of welding current, and the frequency of thermoacoustic is twice as that of the welding current. The amplitudes of thermoacoustic signals detected from different angles are different, which undergo an up-down-up process. The thermoacoustic emission shows different trends with the thickness increase in AC resistance spot welding experiment for 5052 Al alloy and cold-rolled steel.
出处 《China Welding》 EI CAS 2013年第3期66-72,共7页 中国焊接(英文版)
关键词 spot welding THERMOACOUSTIC welding current NUGGET AMPLITUDE spot welding, thermoacoustic, welding current, nugget, amplitude
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  • 1史涛,罗震,胡绳荪.基于LabVIEW的铝合金点焊数据采集系统的设计[J].电焊机,2005,35(9):32-34. 被引量:11
  • 2伊万诺夫 别洛夫.焊接和焊接接头的声发射检测[M].北京:机械工业出版社,1986..
  • 3洪起超编.工程断裂力学[M].上海交通大学出版社,1987:95.
  • 4国家质量监督检验检疫总局,中国国家标准化管理委员会.在用含缺陷压力容器安全评定[S](GB/T19624-2004).北京:中国国家标准出版社,2004:40.
  • 5Fantozzi Marco, Fontana Emilio. Acoustic emission technique the optimum solution for leakage detection and location on water pipelines[R]. 15th World Conference on Nondestructive Testing,Rome. 2000.
  • 6Dunegan H L. Use of plate wave analysis in acoustic emission testing to detect and measure crack growth in noisy environments[C]. Proceedings of Structural Materials Technology-An NDT Conference, San Diego California, 1996:20--23.
  • 7Matteson A, Morris R, Tale R. Real-time GMAW quality classification using an artificial neural network with airborne acoustic signals as input[ A]. Processings of the 12th intenmtional conference on offshore mechanics and arctic engineering[C]. Ⅲ -A,1993.273 - 278.
  • 8Rostek W. Influence of the short circuit frequentcy in gas shielded metal arc welding on the emited airborne sound waves [ J ]. Schweissen und Schneiden, 1990, 42( 11 ) : 177 - 178.
  • 9Chawla K S, Norrish J. Real time quality monitoring using analysis of the arc sound[A]. Porceedings of the 4th international conference on computer technology in welding [ C ]. UK Cambridge, 1992.17 - 20.
  • 10Duley W W, Mao Y L. The eaeet of surface condition on acoustic emission during wdding of aluminum with CO2 laser radiation[ J ]. Appl Phys, 1994,27(7) : 1379 - 1383.

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