阀套交叉孔磨粒流精密加工质量分析  

Quality analysis of abrasive flow precision machining of cross hole of valve sleeve

作　　者：郭静[1] 桂林[1] 侯威 李俊烨[2] 朱志宝 孙立伟 GUO Jing;GUI Lin;HOU Wei;LI Jun-ye;ZHU Zhi-bao;SUN Li-wei(Key Laboratory of Vehicle Transmission,China North Vehicle Research Institute,Beijing 100072,China;Ministry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]中国北方车辆研究所车辆传动重点实验室,北京100072 [2]长春理工大学跨尺度微纳制造教育部重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2023年第12期3367-3378,共12页Journal of Jilin University:Engineering and Technology Edition

基　　金：基础研究项目(20195208003)。

摘　　要：采用磨粒流精密加工方法对阀套交叉孔进行去毛刺处理,通过大涡模拟的方法和合理的亚格子模型对阀套工件在侧孔出流条件下进行数值模拟分析。在不同流速和黏度情况下,分析了流体应变率、速度矢量、壁面剪切力对交叉孔边缘圆角半径大小、毛刺去除以及径向孔壁面加工质量的影响。试验结果表明:流体黏度越低、速度越大,交叉孔边缘圆角半径越大;黏度越高、速度越大,径向孔壁面加工质量越高;为保证交叉孔边缘有较小的圆角,应选用低速、高黏流体进行阀套交叉孔的精密加工。The abrasive flow precision machining method was used to deburr the cross hole of the valve sleeve.Through the large eddy simulation method and the reasonable sub-grid model,the numerical simulation analysis was carried out for the valve sleeve workpiece under the condition of side hole outflow.Under the condition of different flow velocities and viscosity,the effects of fluid strain rate,velocity vector,and wall shear force on the fillet radius of cross-hole edge,burr removal,and radial hole wall processing quality were analyzed.The experimental results show that the lower the fluid viscosity and the higher the speed,the larger the fillet radius of the edge of the cross hole,the higher the viscosity and the speed,and the higher the processing quality of the radial hole wall.To ensure that the edge of the cross hole has a small fillet,the lowspeed and high viscosity fluid should be selected for the precision processing of the cross hole of the valve sleeve.

关 键 词：机械制造工艺与设备 磨粒流精密加工 阀套交叉孔 去毛刺 质量分析 

分 类 号：TH161.1[机械工程—机械制造及自动化] TH117.1