Page 142 - 《摩擦学学报》2021年第5期

第 41 卷 第 5 期 摩 擦 学 学 报 Vol 41 No 5
2021 年 9 月 Tribology Sept, 2021

DOI: 10.16078/j.tribology.2020198

高速球铣加工表面微沟槽形貌形成

方法及其减摩性能研究

*
王素玉, 王永将, 黄为民 , 赵彬杰, 黄常乘
(山东科技大学 交通学院, 山东 青岛 266590)

摘 要: 高速球铣加工表面通常具有一定的残留形貌，采用Matlab形貌仿真与切削加工试验研究了高速球铣加工表
面微沟槽形貌的形成方法；并基于流体动压润滑理论，通过Fluent流体仿真与润滑工况下的滑动摩擦试验，研究了
表面微沟槽形貌的承载能力关于滑动速度和径向切深的响应规律，并分析了减摩机理. 结果表明：当给定每齿进给
量后，随着径向切深的增大，可以获得具有微沟槽特征的表面形貌. 微沟槽承载能力随着滑动速度的提高而逐渐增
大；随着径向切深的提高，承载能力呈现先增后减的趋势，这是由于其与楔形效应和逆流现象交互作用影响相关，
当径向切深较小时，楔形效应占主导地位，承载能力较强，随着径向切深的进一步增大，逆流现象会严重减弱楔形
效应，导致微沟槽承载能力下降.
关键词: 高速球铣加工; 微沟槽; 径向切深; 承载能力; 摩擦系数
中图分类号: TH117.1 文献标志码: A 文章编号: 1004-0595(2021)05–0731–07

Surface Micro-Groove Topography Generation Method and

Anti-Friction Performance for High Speed Ball-End Milling

*
WANG Suyu, WANG Yongjiang, HUANG Weimin , ZHAO Binjie, HUANG Changcheng
(College of Transportation, Shandong University of Science and Technology, Shandong Qingdao 266590, China)
Abstract: The residual topography with certain characteristics can be generated on high speed ball-end milled surfaces
due to the structure and moving way of the ball-end milling cutter. In this paper, the formation mechanism of micro-
groove features on the high speed ball-end milled surface was explored through the combination of high speed ball-end
milling tests and MATLAB simulation method on the one hand. The selected material was the commonly used cold
working die steel Cr12MoV with hardness about 61 HRC after quenching and tempering treatment. The milling tests
were carried out on a five-axis high speed machining center DMU 60P duoBlock. On the other hand, the relationship
between the bearing capacity of ball-end milled surfaces with micro-grooves features and sliding friction speed and
radial depth of cut, together with the friction reduction mechanism, was analyzed based on the hydrodynamic lubrication
theory. During the analysis process, the Fluent simulation method and the ring-on-block sliding friction tests (Tester
type: MRH-3) under lubrication condition were performed. Results showed that the surface topography of the high speed
ball-end milled surface was closely related to feed per tooth and radial depth of cut. With the increase of radial depth of
cut, the surface topography with micro-groove features can be generated for given feed per tooth condition during the
high speed ball-end milling process. The simulated surface topography was consistent with the actual machined surface
topography. Furthermore, the bearing capacity of micro-groove was gradually strengthened with the increase of sliding

Received 13 September 2020, revised 10 December 2020, accepted 18 January 2021, available online 28 September 2021.
*Corresponding author. E-mail: skd996026@sdust.edu.cn, Tel: +86-17863903498.
This project was supported by the National Natural Science Foundation of China (52105463), the Natural Science Foundation of
Shandong Province (ZR2020QE182) and the Elite Program of Shandong University of Science and Technology (0104060540413).
国家自然科学基金项目(52105463), 山东省自然科学基金项目(ZR2020QE182)和山东科技大学菁英计划项目(0104060540413)
资助.