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电磁复合场对激光熔注增强颗粒分布梯度的调控

Distribution Gradient Control of Laser Melt Injection Reinforcement Particles by Electromagnetic Compound Field

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摘要

对激光熔注过程进行了多物理场仿真, 分析了电磁复合场参数对熔池内部流场、温度场和颗粒分布的影响规律, 并通过实验进行了验证。结果表明, 电磁复合场的施加可抑制熔池流速, 但对其温度场的分布无明显影响。当施加与重力同向的定向洛伦兹力时, 大部分增强颗粒集中在熔注层上层区域; 反之, 大部分增强颗粒集中在下层区域。

Abstract

The multi-physics simulation of laser melt injection process is conducted and the effects of electromagnetic compound field parameters on the distributions of the flow field, temperature field and particles within the molten pools are investigated, which is also verified by the experiment. The results indicate that, the addition of the electromagnetic compound field can suppress the fluid speed, but does not obviously influence the temperature field distribution. When the directional Lorentz force and the gravity force are in the same direction, the majority of reinforcement particles is trapped in the upper region of the laser melt injection layer, conversely, the majority is in the bottom region.

Newport宣传-MKS新实验室计划
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中图分类号:TG148;TN249

DOI:10.3788/cjl201845.1002001

所属栏目:激光制造

基金项目:国家重点研发计划(2017YFB1103601)、国家自然科学基金青年基金(51705464)、国家自然科学基金面上项目(51475429)

收稿日期:2018-03-23

修改稿日期:2018-05-02

网络出版日期:2018-05-11

作者单位    点击查看

王梁:浙江工业大学激光先进制造研究院, 浙江 杭州 310014浙江省高端激光制造装备协同创新中心, 浙江 杭州 310014
胡勇:浙江工业大学激光先进制造研究院, 浙江 杭州 310014浙江省高端激光制造装备协同创新中心, 浙江 杭州 310014
林英华:浙江工业大学激光先进制造研究院, 浙江 杭州 310014浙江省高端激光制造装备协同创新中心, 浙江 杭州 310014
李珏辉:浙江工业大学激光先进制造研究院, 浙江 杭州 310014浙江省高端激光制造装备协同创新中心, 浙江 杭州 310014
姚建华:浙江工业大学激光先进制造研究院, 浙江 杭州 310014浙江省高端激光制造装备协同创新中心, 浙江 杭州 310014

联系人作者:姚建华(laser@zjut.edu.cn); 王梁(ddtwl@foxmail.com);

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引用该论文

Wang Liang,Hu Yong,Lin Yinghua,Li Juehui,Yao Jianhua. Distribution Gradient Control of Laser Melt Injection Reinforcement Particles by Electromagnetic Compound Field[J]. Chinese Journal of Lasers, 2018, 45(10): 1002001

王梁,胡勇,林英华,李珏辉,姚建华. 电磁复合场对激光熔注增强颗粒分布梯度的调控[J]. 中国激光, 2018, 45(10): 1002001

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