The Finite Element Analysis of Flow Field and Temperature Field in The Molten Pool of Surface Treatment by Electron Beam
A finite element model was established to describe the flow field and temperature field during the surface modification by electron beam in this paper.The driving forces of molten pool were considered in the mode.The flow of liquid metal was different between the inside and outside of the beam spot; the direction of the flow was along the surface to the specimen thickness.When the liquid metal was in the bottom of the pool,it flowed along the bottom to the pool edge.The largest flow velocity was 0.28m/s in the center of the beam spot,the minimum flow velocity was 0.11 m/s in the bottom of molten pool.The temperature of sample is uniform distribution,the temperature distribution show a gradient distribution in cross section.
Electron beam Melt pool Surface modification Flow field Driving force Temperature field
RongWang Guo Bin Shen De Qiang Wei
School of Mechanical & Electronic Engineering;Guilin University of Electronic Technology,Guilin 541004,China
国际会议
广州
英文
908-911
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）