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SONG Dong-feng, HU Sheng-sun, HAN Jian, ZHU Yu-xin. Penetration control system for keyhole pulse plasma arc welding based on reflecting plasma-flame voltage[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (6): 45-48.
Citation: SONG Dong-feng, HU Sheng-sun, HAN Jian, ZHU Yu-xin. Penetration control system for keyhole pulse plasma arc welding based on reflecting plasma-flame voltage[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (6): 45-48.

Penetration control system for keyhole pulse plasma arc welding based on reflecting plasma-flame voltage

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  • Received Date: March 06, 2005
  • Penetration information of keyhole pulse plasma arc welding has been correctly and conveniently obtained in real-time by detecting the reflecting plasma-flame voltage with non-power supply probe system.A fuzzy controller,which is realized by Look-up Table method,was developed and simulated on MATLAB fuzzy logic toolbox to control the penetration.In this controller,the peak welding current is controlled by the keyhole existing-time in a period,by means of the feedback of reflecting plasma-flame voltage.The results of experiments demonstrate that the "one-pulse-one-keyhole" strategy could be achieved;the continuous,stable and reliable welding process could be fulfilled;the nice weld beam appearance could be gained by using the control system.
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