线性液动压抛光加工的流场特性研究

doi:10.3969/j.issn.1004-132X.2023.11.006

中国机械工程 ›› 2023, Vol. 34 ›› Issue (11): 1306-1314.DOI: 10.3969/j.issn.1004-132X.2023.11.006

线性液动压抛光加工的流场特性研究

傅远韬1,2;文东辉1,2;孔凡志1,2;淦作昆1,2;成志超1,2

1.特种装备制造与先进加工技术教育部/浙江省重点实验室，杭州，310023
2.浙江工业大学机械工程学院，杭州，310023

出版日期:2023-06-10 发布日期:2023-07-07
通讯作者: 孔凡志（通信作者），男，1976年生，副教授。研究方向为超精密加工。E-mail:franzkong@zjut.edu.cn。
作者简介:傅远韬，男，1997年生，硕士研究生。研究方向为超精密加工。E-mail:1071692993@qq.com。
基金资助:
国家自然科学基金（51775509）；浙江省自然科学基金重点项目（LZ17E050003）

Research on Characteristics of Flow Fields during LHP Processes

FU Yuantao1,2;WEN Donghui1,2;KONG Fanzhi1,2;GAN Zuokun1,2;CHENG Zhichao1,2

1.Special Equipment Manufacturing and Advanced Processing Technology, Ministry of Education/
Zhejiang Provincial Key Laboratory,Hangzhou,310023
2.School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou,310023

Online:2023-06-10 Published:2023-07-07

摘要/Abstract

摘要： 分析了线性液动压抛光加工中液流对工件表面的作用形式，推导了黏性切应力和液动压力数学模型。对线性液动压抛光流场进行了数值模拟，剖析了抛光辊子尺寸以及抛光工艺参数对液动压和黏性切应力的数值及分布均匀性的影响规律。研究结果表明：液动压力和黏性切应力数值随辊子直径和辊子转速的增加而增加，与此同时其分布均匀性反而下降；抛光间隙值越小，液动压力和黏性切应力数值越大，且其分布均匀性越好。最后采用自制的线性液动压抛光实验平台，以K9玻璃为实验对象，探究了抛光加工表面形貌和表面粗糙度的创成过程。

关键词: 线性液动压抛光, 液动压力, 黏性切应力, 流场, 表面形貌, 表面粗糙度

Abstract: The action form of fluid flow on workpiece surfaces in LHP was analyzed, the mathematic models of viscous shear stress and hydrodynamic pressure were derived. The flow field of LHP was numerically simulated and the influences of the sizes of polishing roller and polishing parameters on the numerical values and distribution uniformities of hydrodynamic pressure and viscous shear stress were analyzed. The results show that the values of hydrodynamic pressure and viscous shear stress increase with the increasing of roller diameters and rotation speeds, while the distribution uniformity decreases. The smaller the values of polishing clearance, the larger the values of hydrodynamic pressure and viscous shear stress, and the better the distribution uniformity. Finally, taking K9 glass as the experimental object, the formation processes of surface morphology and surface roughness were investigated by using a self-made LHP experimental platform.

Key words: linear hydrodynamic polishing(LHP), hydrodynamic pressure, viscous shear stress, flow field, surface topography, surface roughness

中图分类号:

TG580

傅远韬, 文东辉, 孔凡志, 淦作昆, 成志超, . 线性液动压抛光加工的流场特性研究[J]. 中国机械工程, 2023, 34(11): 1306-1314.

FU Yuantao, WEN Donghui, KONG Fanzhi, GAN Zuokun, CHENG Zhichao, . Research on Characteristics of Flow Fields during LHP Processes[J]. China Mechanical Engineering, 2023, 34(11): 1306-1314.

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线性液动压抛光加工的流场特性研究

Research on Characteristics of Flow Fields during LHP Processes

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