Simulation of the Backward Flow of the Melted Pool into the Laser Keyhole

摘要：

when laser beam is ceased, the melt metal flows downward to fill the keyhole during keyhole welding. Mathematical models and VOF volume of fluid techniques have been developed to study the refilling process. The simulation results show that the surface tension pressure plays more important role than the total pressure of fluid flow in the molten pool, and the violent interaction between liquid metal and keyhole air and whirlpool in the fluid flow influence the dimension of keyhole air region and the velocity of molten pool.

关键词： keyhole laser welding molten pool simulations

作者: H.Wang H.Z.Huo

作者单位: School of Material Science and Engineering Taiyuan University of Science and Technology, Shanxi,Taiyuan, 030024, P.R.China

会议类型: 国际会议

会议名称: The 3rd International Conference on Power Beam Processing Technologies(2010 高能束流加工技术国际会议 ICPBPT 2010)

会议地点: 北京

会议语种:英文

页码: 34-37

在线出版日期: 2010-10-25（万方平台首次上网日期，不代表论文的发表时间）