Numerical analysis of the molten pool vibration mode for arc-ultrasonic keyhole plasma arc welding

Numerical analysis of the molten pool vibration mode for arc-ultrasonic keyhole plasma arc welding

With considering the characteristics of keyhole plasma arc welding （K-PAW）, the resonant frequency between arc and molten pool was solved in the frequency range 15 000 Hz to 72 000 Hz by,finite element modal analysis, ClAM steel fiat butt arc-ultrasonic PAW test was carried out to evaluate the effec...

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Veröffentlicht in:中国焊接 2012-03, Vol.21 (1), p.22-26
1. Verfasser: 雷玉成 谢伟峰 李闯 陈希章
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Sprache:eng
Schlagworte:
小孔
振动模式
数值分析
有限元模态分析
焊接熔池
电弧超声
等离子弧焊接
谐振频率
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description With considering the characteristics of keyhole plasma arc welding （K-PAW）, the resonant frequency between arc and molten pool was solved in the frequency range 15 000 Hz to 72 000 Hz by,finite element modal analysis, ClAM steel fiat butt arc-ultrasonic PAW test was carried out to evaluate the effect arc-ultrasonic frequency on weld structures. Experimental result confirmed that arc-ultrasonic with resonant frequencies treatment are more eJficient than non-resonant frequencies treatment in terms of grain size reduction and structure homogenization. But resonant frequency treatment has little effect on breaking up dendritic structures further and forming equiaxed structures at the lower part the weld.
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Experimental result confirmed that arc-ultrasonic with resonant frequencies treatment are more eJficient than non-resonant frequencies treatment in terms of grain size reduction and structure homogenization. But resonant frequency treatment has little effect on breaking up dendritic structures further and forming equiaxed structures at the lower part the weld.</description><identifier>ISSN: 1004-5341</identifier><language>eng</language><publisher>School of Material Science and Engineering, Jiangsu University, Zhenjiang,212013</publisher><subject>小孔 ; 振动模式 ; 数值分析 ; 有限元模态分析 ; 焊接熔池 ; 电弧超声 ; 等离子弧焊接 ; 谐振频率</subject><ispartof>中国焊接, 2012-03, Vol.21 (1), p.22-26</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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subjects 小孔
振动模式
数值分析
有限元模态分析
焊接熔池
电弧超声
等离子弧焊接
谐振频率
title Numerical analysis of the molten pool vibration mode for arc-ultrasonic keyhole plasma arc welding
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