Numerical simulation on the shape of liquid surface of TIG full-penetrated weld pool
来源期刊：Rare Metals2007年第S1期
论文作者：HE Jingshan,LIU Wei,ZHANG Binggang,WU Qingsheng,and FENG Jicai State Key Laboratory of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin ,China
文章页码：73 - 76
摘 要：Based on the analysis of the three-dimensional liquid surface behavior of TIG penetrated weld pool,the three-dimensional shape models of weld pool with different values of the back fusion zone radius RB were obtained.The effects of arc on the penetrated weld pool were studied by numerical simulation with finite elements analysis software Surface Evolver.The results show that the size and shape of the back weld pool are not affected obviously by the arc,and the top surface of the weld pool is lowered by arc.From pulse background to pulse peak,the increase of the arc voltage（or the arc light intensity） is due to two factors.One is the increase of the current,and the other is the lowering of the top weld pool surface
HE Jingshan,LIU Wei,ZHANG Binggang,WU Qingsheng,and FENG Jicai State Key Laboratory of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin 150001,China
摘 要：Based on the analysis of the three-dimensional liquid surface behavior of TIG penetrated weld pool,the three-dimensional shape models of weld pool with different values of the back fusion zone radius RB were obtained.The effects of arc on the penetrated weld pool were studied by numerical simulation with finite elements analysis software Surface Evolver.The results show that the size and shape of the back weld pool are not affected obviously by the arc,and the top surface of the weld pool is lowered by arc.From pulse background to pulse peak,the increase of the arc voltage（or the arc light intensity） is due to two factors.One is the increase of the current,and the other is the lowering of the top weld pool surface
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