Numerical Simulation on Deposition and Solidification Processes of a Molten Metal Droplet Generated by Drop-on-demand Jetting

被引：1
|
作者：
Wang, Pengyun [1 ]
Li, Hejun [1 ]
Qi, Lehua [2 ]
Deng, Hailiang [1 ]
Zuo, Hansong [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Sch Mechatron Engn, Xian 710072, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGY II, PTS 1-4 | 2012年 / 538-541卷
关键词：
Numerical simulation; Metal droplet; Drop-on-demand jetting;
D O I：
10.4028/www.scientific.net/AMR.538-541.890
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Droplet deposition and solidification is vital to dimensional accuracy and mechanical properties of components prepared by uniform droplet spray (UDS) forming. In this paper, a volume-of-fluid (VOF) based model was developed to study the deposition and solidification processes of a 1 mm Al-4.5%Cu droplet generated by drop-on-demand jetting. The effects of droplet falling velocity (0.6-0.8 m/s), initial temperature (933-973 K), and substrate temperature (300-473 K) were investigated. The results show that the final morphology of the deposited droplet is largely dependent on falling velocity and substrate temperature. The solidified droplet obtained from an UDS experiment validates the numerical simulation.
引用
收藏
页码：890 / +
页数：2
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