Simulation and Analysis of Electromagnetic Force in Laser Melting Deposition by Electromagnetic Impact

作     者：Xie Na Zhao Jianfeng Xie Deqiao Sun Jie Tian Zongjun Shen Lida 

作者机构：College of Mechanical and Electrical EngineeringNanjing University of Aeronautics and Astronautics 

出 版 物：《Transactions of Nanjing University of Aeronautics and Astronautics》 (南京航空航天大学学报（英文版）)

年 卷 期：2018年第35卷第4期

页      面：702-709页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 080201[工学-机械制造及其自动化] 

基　　金：supported by the National Science Foundation of China(No.51475238) the Jiangsu Science and Technology Support Program(No.BE2014009-1) the Jiangsu Provincial Key Research and Development Plan (Nos.BE201561,BE201603-3) 

主　　题：laser melting deposition(LMD) finite element method electromagnetic force coil microstructure 

摘      要：Magnetic field was introduced in laser melting deposition to reduce the pores in workpieces.Finite 3-D model of the coil-deposition layer-substrate was established.Simulation results show that the electromagnetic force in deposition layer mainly concentrates in the projection area of the coil.Axial electromagnetic force shows repulsion in one cycle.The experimental results indicate that the magnetic field is beneficial for grain refinement,microhardness increasement and decline of quantities and average sizes of pores.