离散相磨粒粒径对磨粒流研抛共轨管质量的影响

doi:10.13229/j.cnki.jdxbgxb20170083

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (2): 492-499.doi: 10.13229/j.cnki.jdxbgxb20170083

离散相磨粒粒径对磨粒流研抛共轨管质量的影响

李俊烨^{1, 2}, 胡敬磊¹, 杨兆军², 张心明¹, 周曾炜¹

1.长春理工大学机电工程学院,长春 130022;
2.吉林大学机械科学与工程学院,长春 130022

收稿日期:2017-01-31 出版日期:2018-03-01 发布日期:2018-03-01
通讯作者: 张心明(1967-),男,研究员,博士生导师. 研究方向:精密超精密加工、检测及装备.E-mail:zxm@cust.edu.cn
作者简介:李俊烨(1981-),男,副教授,博士. 研究方向:精密与超精密加工,摩擦与多相流技术. E-mail:ljy@cust.edu.cn
基金资助:
国家自然科学基金项目(51206011); 吉林省科技发展计划项目(20160101270JC, 20170204064GX); 吉林省教育厅项目(吉教科合字[2016]第386号)

Effect of the size of discrete phase abrasive particles on the abrasive flow polishing quality of common rail pipe

LI Jun-ye^{1, 2}, HU Jing-lei¹, YANG Zhao-jun², ZHANG Xin-ming¹, ZHOU Zeng-wei¹

1. College of Mechanical and Electric Engineering, Changchun University of Science and Technology, Changchun 130022,China;
2. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China

Received:2017-01-31 Online:2018-03-01 Published:2018-03-01

摘要/Abstract

摘要： 为研究磨粒粒径对磨粒流研抛质量的影响,以共轨管为研究对象,通过计算模拟不同磨粒粒径下磨粒流的状态,分别从流场动压力、速度场、磨粒的运动轨迹、湍流动能进行不同场的离散相分析。从数值分析可知,随着磨粒粒径增大,动压力、速度和湍流动能降低,磨削效果减弱。对经磨粒流研抛前后的共轨管工件进行了表面粗糙度和表面形貌的检测,测得磨粒流研抛前的表面粗糙度为3.401 μm,研抛后的表面粗糙度为1.138 μm,从而确认了磨粒流研抛具有内通道结构的工件的有效性,也证实了数值模拟的正确性,为磨粒流研抛技术的发展提供了理论支持。

关键词: 机械制造工艺与设备, 共轨管, 离散相, 磨粒粒径, 研抛质量

Abstract: In order to study the effect of abrasive grain size on abrasive flow polishing, common rail pipe was selected as the research object. By calculation the state of abrasive grain flow under different grain sizes, the discrete phase analysis of the flow field was carried out from the dynamic pressure, the velocity field, the abrasive grain trajectory and the turbulent kinetic energy. From the numerical analysis shows that, with the increase in the grain size, the dynamic pressure, the velocity and the turbulent kinetic energy are reduced and the grinding effect is weakened. The trajectory of the abrasive grain can be used to predict and theoretically guide the optimal control of the abrasive grinding path and the production process, thus achieving effective and accurate polishing. The surface roughness and the surface topography of the common rail pipe were measured before and after abrasive flow grinding. The surface roughness was 3.401 μm before the grinding and was 1.138 μm after the grinding. This verifies the effectiveness of abrasive flow polishing workpiece with inner channel structure, and confirms the correctness of the numerical analysis. This work may provide theoretical support for the development of abrasive grinding technology.

Key words: machinery manufacturing technology and equipment, common rail pipe, discrete phase, abrasive particle size, polishing quality

中图分类号:

TH161.1

李俊烨, 胡敬磊, 杨兆军, 张心明, 周曾炜. 离散相磨粒粒径对磨粒流研抛共轨管质量的影响[J]. 吉林大学学报(工学版), 2018, 48(2): 492-499.

LI Jun-ye, HU Jing-lei, YANG Zhao-jun, ZHANG Xin-ming, ZHOU Zeng-wei. Effect of the size of discrete phase abrasive particles on the abrasive flow polishing quality of common rail pipe[J]. 吉林大学学报(工学版), 2018, 48(2): 492-499.

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离散相磨粒粒径对磨粒流研抛共轨管质量的影响

Effect of the size of discrete phase abrasive particles on the abrasive flow polishing quality of common rail pipe

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