Comparison study of numerical analysis for heat transfer and fluid flow under two different laser scan pattern during selective laser melting

被引：32
作者：
Ding, Xueping [1 ,2 ]
Ang, Linzhi [1 ,2 ]
Wang, Sen [1 ,2 ]
机构：
[1] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
[2] Chongqing Key Lab Addit Mfg Technol & Syst, Chongqing 400714, Peoples R China
来源：
OPTIK | 2016年 / 127卷 / 22期
关键词：
Selective laser melting; Numerical analysis; Laser scan pattern; Heat transfer; Fluid flow; PROCESSING PARAMETERS; MECHANICAL-BEHAVIOR; MICROSTRUCTURE; PARTS; DENSIFICATION; TEMPERATURE; DEPOSITION; SIMULATION;
D O I：
10.1016/j.ijleo.2016.08.123
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In selective laser melting, there are two different laser scan pattern including point exposure scan and continuous exposure scan. Different laser scan pattern has a significant effect on the thertnal behavior and fluid flow of molten pool. In this paper, under the same energy input, the effects of laser scan pattern on the temperature evolution behavior, molten pool dimensions, fluid flow and cooling rate are thorough studied by method of numerical simulation. Experiments for point exposure are carried out which are in a good agreement with the numerical results. (C) 2016 Elsevier GmbH. All rights reserved.
引用
收藏
页码：10898 / 10907
页数：10
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