Numerical modeling of powder stream in extreme high-speed linear laser material deposition

被引：0
|
作者：
Xie, Chong [1 ]
Wang, Keyan [1 ]
Pi, Ziqiang [2 ]
Li, Chengxin [1 ]
Yin, Xianqing [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[2] BGRIMM Technol Grp, Beijing 100160, Peoples R China
来源：
10TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: ADVANCED AND EXTREME MICRO-NANO MANUFACTURING TECHNOLOGIES | 2021年 / 12073卷
关键词：
Laser cladding; powder feeding structures; numerical simulation;
D O I：
10.1117/12.2604849
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new structure of side powder feeding nozzles for extreme high-speed linear laser material deposition was designed. In this structure, the spatial concentration distribution of powder flow is controlled by multi-channel cylindrical beam splitting and conical rectifier. The turbulent and discrete phase models were used to study the flow field and powder distribution under the conditions of specific carrier gas flow rate and powder size. The results show that the powder feeding shaping structure can realize the powder flow linear and uniform distribution. Besides, it is proved that the prepared cladding layer has good surface quality through the experimental investigation.
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收藏
页数：9
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