Modelling of resonant droplet detachment in laser metal droplet generation

被引：2
|
作者：
Jeromen, Andrej [1 ]
Govekar, Edvard [1 ]
机构：
[1] Univ Ljubljana, Fac Mech Engn, Lab Synerget, SI-1000 Ljubljana, Slovenia
来源：
LASER ASSISTED NET SHAPE ENGINEERING 7 (LANE 2012) | 2012年 / 39卷
关键词：
Laser droplet generation; resonant droplet detachment; mathematical modelling;
D O I：
10.1016/j.phpro.2012.10.111
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In laser generation of droplets from a metal wire, it has been observed experimentally that droplet detachment can be influenced by interaction of the laser pulse frequency and eigen dynamics of a pendent droplet. In laser pulse frequency range between 70 Hz and 150 Hz, the dynamics of the pendent droplet resembles that of a spring-mass system. Based on experimental observations a nonlinear model of droplet generation in the form of spring-mass oscillator is developed. Model based simulation of pendent droplet dynamics, and especially predicted time of droplet detachment and detached droplet diameter are in high agreement with experimental results. (C) 2012 Published by Elsevier B.V. Selection and/or review under responsibility of Bayerisches Laserzentrum GmbH
引用
收藏
页码：863 / 871
页数：9
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