典型文献
Simulation and experimental analysis of melt pool evolution in laser engineered net shaping
文献摘要：
In this work,the evolution of melt pool under single-point and single-line printing in the laser engi-neered net shaping(LENS)process is analyzed.Firstly,the basic structure of the melt pool model of the LENS process is established and the necessary assumptions are made.Then,the establishment process of the multi-physical field model of the melt pool is introduced in detail.It is concluded that the sim-ulation model results are highly consistent with the online measurement experiment results in terms of melt pool profile,space temperature gradient,and time temperature gradient.Meanwhile,some parame-ters,such as the 3D morphology and surface fluid field of the melt pool,which are not obtained in the online measurement experiment,are analyzed.Finally,the influence of changing the scanning speed on the profile,peak temperature,and temperature gradient of the single-line melt pool is also analyzed,and the following conclusions are obtained:With the increase in scanning speed,the profile of the melt pool gradually becomes slender;The relationship between peak temperature and scanning speed is approxi-mately linear in a certain speed range;The space temperature gradient at the tail of the melt pool under different scanning speeds hardly changes with the scanning speed,and the time temperature gradient at the tail of the melt pool is in direct proportion to the scanning speed.
文献关键词：
中图分类号：
作者姓名：
Zhuangzhuang Mao;Wei Feng;Ce Hao;Zhanwei Liu
作者机构：
School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China;AECC Commercial Aircraft Engine Co.Ltd.,Shanghai 200241,China
文献出处：
引用格式：
[1]Zhuangzhuang Mao;Wei Feng;Ce Hao;Zhanwei Liu-.Simulation and experimental analysis of melt pool evolution in laser engineered net shaping)[J].力学快报（英文）,2022(05):332-340
A类：
LENS
B类：
Simulation,experimental,analysis,melt,pool,evolution,laser,engineered,net,shaping,In,this,work,under,single,point,printing,process,analyzed,Firstly,basic,structure,model,established,necessary,assumptions,are,made,Then,establishment,multi,physical,field,introduced,detail,It,concluded,that,sim,results,highly,consistent,online,measurement,terms,profile,space,temperature,gradient,Meanwhile,some,parame,ters,such,morphology,surface,fluid,which,not,obtained,Finally,influence,changing,scanning,peak,also,following,conclusions,With,increase,gradually,becomes,slender,relationship,between,approxi,mately,linear,certain,range,different,speeds,hardly,changes,direct,proportion
AB值：
0.415197
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