A COMPREHENSIVE MODEL OF LASER CLADDING BY POWDER FEEDING  

作　　者：Y.L.Huang G.Y.Liang J.Y.Su 

机构地区：[1]School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China,School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China,School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

出　　处：《Acta Metallurgica Sinica(English Letters)》2004年第1期21-27,共7页金属学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.59871038);the Foundation of State Key Laboratory of Laser Technology,Huazhong University of Science and Technology

摘　　要：A novel model was presented to predict the evolutionary development of cladding layer, and a method based on Lambert-Beer theorem and Mie's theory was adopted to treat the interaction between powder stream and laser beam. By using the continuum model and enthalpy-porosity method, the fluid flow and heat transfer in solid-liquid phase change system were simulated. The commercial software PHOENICS, to which several modules were appended, was used to accomplish the simulation. Numerical computation was performed for Stellite 6 cladding on steel, the obtained results are coincident with those measured in experiment basically.A novel model was presented to predict the evolutionary development of cladding layer, and a method based on Lambert-Beer theorem and Mie's theory was adopted to treat the interaction between powder stream and laser beam. By using the continuum model and enthalpy-porosity method, the fluid flow and heat transfer in solid-liquid phase change system were simulated. The commercial software PHOENICS, to which several modules were appended, was used to accomplish the simulation. Numerical computation was performed for Stellite 6 cladding on steel, the obtained results are coincident with those measured in experiment basically.

关 键 词：laser cladding powder feeding cladding layer INTERACTION 

分 类 号：TG156.99[金属学及工艺—热处理] TB115[金属学及工艺—金属学]