MQL条件下的油滴覆盖率及尺寸分布研究

doi:10.3901/JME.2018.03.169

机械工程学报 ›› 2018, Vol. 54 ›› Issue (3): 169-177.doi: 10.3901/JME.2018.03.169

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MQL条件下的油滴覆盖率及尺寸分布研究

张松^1,2, 张成良³, 石文浩^1,2, 吕盈^1,2, 陈杰^1,2

1. 山东大学机械工程学院济南 250061;
2. 山东大学高效洁净机械制造教育部重点实验室济南 250061;
3. 中车长春轨道客车股份有限公司长春 130062

收稿日期:2017-03-15 修回日期:2017-06-18 出版日期:2018-02-05 发布日期:2018-02-05
通讯作者: 张松(通信作者),男,1969年出生,教授。主要研究方向为高效切削机理及加工表面完整性等。E-mail:zhangsong@sdu.edu.cn
作者简介:张成良,男,1990年出生,硕士。主要研究方向为高效切削加工技术。E-mail:zhangchengliang01@126.com;石文浩,男,1991年出生,硕士研究生。主要研究方向为高效切削加工技术。E-mail:seven7hao@foxmail.com;吕盈,女,1989年出生,硕士研究生。主要研究方向为高效切削加工技术。E-mail:lvying20140906@163.com;陈杰,男,1993年出生,硕士研究生。主要研究方向为高效切削加工技术。E-mail:1220242893@qq.com
基金资助:
国家自然科学基金（51575321，51175309）和山东省泰山学者工程专项经费资助项目。

Investigation of Oil Droplet Coverage Rate and Droplet Size Distribution under Minimum Quantity Lubrication Condition

ZHANG Song^1,2, ZHANG Chengliang³, SHI Wenhao^1,2, LÜ Ying^1,2, CHEN Jie^1,2

1. School of Mechanical Engineering, Shandong University, Jinan 250061;
2. Key Laboratory of High-Efficiency and Clean Mechanical Manufacture Shandong University, Ministry of Education, Jinan 250061;
3. CRRC Changchun Railway Vehicles Co., LTD., Changchun 130062

Received:2017-03-15 Revised:2017-06-18 Online:2018-02-05 Published:2018-02-05

摘要/Abstract

摘要： 微量润滑（Minimum quantity lubrication，MQL）切削过程中，刀具-切屑界面和刀具-工件界面的油滴覆盖率、油滴大小及其尺寸分布是决定切削区油膜均匀性和覆盖面积大小的重要因素，进而直接影响微量切削油的润滑性能。针对不同喷射距离和气体流量下的油滴覆盖率、油滴大小及其尺寸分布进行研究。借助于图像处理技术，获得不同喷射距离和气体流量下的油滴位图，分析油滴形状以及喷射距离对油滴覆盖率的影响规律；然后，利用油滴体积计算模型，阐释油滴尺寸分布与气体流量之间的内在关系。研究表明：适当缩短喷射距离和增大气体流量可以提高油滴覆盖率和减少油滴尺寸，进而充分发挥MQL技术的润滑性能。

关键词: 润滑油膜, 微量润滑（MQL）, 油滴尺寸分布, 油滴覆盖率

Abstract: During minimum quantity lubrication (MQL) cutting processes, the coverage rate of the oil droplet, as well as the droplet size and its distribution at the tool-chip and tool-workpiece interfaces are the important factors influencing the oil film uniformity and oil coverage area at the cutting zone, which then directly determine the lubricating performance of the lubrication oil. The coverage rate of the oil droplet is investigated, as well as the droplet size and its distribution under different spray distance and air flow rate. First, by means of image processing technology, the bitmap images of the oil droplets under different spray distance and air flow rate are obtained, and the effects of droplet shape and spray distance on the coverage rate of the oil droplet is analyzed. Then, the relationship between the oil droplet size distribution and the air flow rate are explored by aid of the mathematic model of the oil droplet volume. The results indicate that the combination of properly shortening the spray distance and increasing the air flow rate is benefit to increasing the coverage rate of the oil droplet, and reducing the droplet size, and then improving the lubrication performance of MQL technology.

Key words: droplet size distribution, lubrication oil film, minimum quantity lubrication (MQL), oil droplet coverage rate

中图分类号:

TG506

张松, 张成良, 石文浩, 吕盈, 陈杰. MQL条件下的油滴覆盖率及尺寸分布研究[J]. 机械工程学报, 2018, 54(3): 169-177.

ZHANG Song, ZHANG Chengliang, SHI Wenhao, LÜ Ying, CHEN Jie. Investigation of Oil Droplet Coverage Rate and Droplet Size Distribution under Minimum Quantity Lubrication Condition[J]. Journal of Mechanical Engineering, 2018, 54(3): 169-177.

参考文献

[1] 龙震海,王西彬,刘志兵. 高速铣削难加工材料时硬质合金刀具前刀面磨损机理及切削性能研究[J]. 摩擦学学报,2005,25(1):83-87. LONG Zhenhai,WANG Xibin,LIU Zhibing. Research on wear modes and mechanism of carbide tools in high-speed milling of difficult-to-cut materials[J]. Tribology,2005,25(1):83-87.
[2] HONG S Y,DINGY C. Cooling approaches and cutting temperatures in cryogenic machining of Ti-6Al-4V[J]. International Journal of Machine Tools & Manufacture,2001,41(8):1417-1437.
[3] HONG S Y,BROOMER M. Economic and ecological cryogenic machining of AISI 304 austenitic stainless steel[J]. Clean Products and Processes,2000,2(3):157-166.
[4] OBIKAWA T,KAMATA Y,ASANO Y,et al. Micro-liter lubrication machining of Inconel 718[J]. International Journal of Machine Tools & Manufacture,2008,48,1605-1612.
[5] WEINERT K,INASAKI I,SUTHERLAND J W,et al. Dry machining and minimum quantity lubrication[J]. CIRP Annals-Manufacturing Technology,2004,53(1):511-537.
[6] JEONG W C. Investigation of liquid nitrogen lubrication effects in cryogenic machining[D]. New York:Columbia University,2002.
[7] KLOCKET F,EISENBLATTER G. Dry cutting[J]. CIRP Annals,1997,46(1):519-526.
[8] FRATILA D. Evaluation of near-dry machining effects on gear milling process efficiency[J]. Journal of Cleaner Production,2009,17(9):839-845.
[9] FRATILA D,CAIZAR C. Application of Taguchi method to selection of optimal lubrication and cutting conditions in face milling of AlMg₃[J]. Journal of Cleaner Production,2011,19(6-7):640-645.
[10] 姜立. 微量润滑的流场分析及应用于外螺纹车削的试验研究[D]. 上海:上海交通大学,2013. JIANG Li. Analysis of flow field for minimum quantity lubrication and experimental study on outer thread turning performances[D]. Shanghai:Shanghai Jiao Tong University,2013.
[11] 严鲁涛,袁松梅,刘强.绿色切削高强度钢的刀具磨损及切屑形态[J]. 机械工程学报,2010,46(9):187-192. YAN Lutao,YUAN Songmei,LIU Qiang.Tool wear and chip formation in green machining of high strength steel[J].Journal of Mechanical Engineering,2010,46(9):187-192.
[12] 高昆,齐乐华,郁大照,等. 基于复合油雾喷射润滑的飞机钛合金蒙皮原位钻削技术研究[J]. 机械工程学报,2015,51(15):198-204. GAO Kun,QI Lehua,YU Dazhao,et al. Study on the in situ drilling technology used in titanium alloy thin-walled structure of plane based on combined oil mist-jet[J]. Journal of Mechanical Engineering,2015,51(15):198-204.
[13] SHERI K,JEAN M D,DANIEL L S,et al. Evaluation of the convective heat transfer coefficient for minimum quantity lubrication (MQL)[J]. Industrial Lubrication and Tribology,2012,64(6):376-386.
[14] MAO C,HUANG Y,ZHOU X,et al. The tribological properties of nanofluid used in minimum quantity lubrication grinding[J]. International Journal of Advanced Manufacturing Technology,2014,71(5-8):1221-1228.
[15] OBIKAWA T,KAMATA Y,SHINOZUKA J. High-speed grooving with applying MQL[J]. International Journal of Machine Tools & Manufacture,2006,46(14):1854-1861.
[16] LIAO Y S,LIN H M,CHEN Y C. Feasibility study of the minimum quantity lubrication in high-speed end milling of NAK80 hardened steel by coated carbide tool[J]. International Journal of Machine Tools & Manufacture,2007,47(11):1667-1676.
[17] VAZQUEZ E,KEMMOKU D T,NORITOMI P Y,et al. Computer fluid dynamics analysis for efficient cooling and lubrication conditions in micromilling of Ti6Al4V alloy[J]. Materials and Manufacturing Processes,2014,29(11-12):1494-1501.
[18] 张春燕,王贵成,裴宏杰,等. 基于毛细管理论的MQL理论模型及应用[J]. 机械设计与制造,2009(9):62-64. ZHANG Chunyan,WANG Guicheng,PEI Hongjie,et al. MQL theoretical model and application based on capillaries[J]. Machinery Design & Manufacture,2009 (9):62-64.
[19] TASDELEN B,THORDENBERG H,OLOFSSON D. An experimental investigation on contact length during minimum quantity lubrication (MQL) machining[J]. Journal of Materials Processing Technology,2008,203 (s1-3):221-231.
[20] 吕宏刚. H13钢硬态铣削过程中的刀具磨损及其对表面完整性的影响[D]. 济南:山东大学,2012. LÜ Honggang. Tool wear and its effect on surface integrity in hard milling H13 steel[D]. Jinan:Shandong University,2012.
[21] MULYADI I H,BALOGUN V A,MATIVENGA P T. Environmental performance evaluation of different cutting environments when milling H13 tool steel[J]. Journal of Cleaner Production,2015,108:110-120.
[22] DUCHOSAL A,SERRA R,LEROY R. Numerical study of the inner canalization geometry optimization in a milling tool used in micro quantity lubrication[J]. Mechanics & Industries,2014,15(5):435-442.
[23] DUCHOSAL A,WERDA S,SERRA R,et al. Numerical modeling and experimental measurement of MQL impingement over an insert in a milling tool with inner channels[J]. International Journal of Machine Tools & Manufacture,2015,94:37-47.
[24] BALAN A S S,VIJAYARAGHAVAN L,KRISHNAMURTHY R. Computational fluid dynamics analysis for predicting the droplet size in MQL during grinding of super-alloy[C]// Proceedings of the 37th International MATADOR Conference,2013:161-164.
[25] REIN M. Phenomena of liquid drop impact on solid and liquid surfaces[J]. Fluid Dynamics Research,1993,12(2):61-93
[26] LEI X,ZHANG W W,NAGEL S R. Drop splashing on a dry smooth surface[J]. Physical Review Letters,2005,94:184505
[27] MARUDA R W,KROLCZYK G M,FELDSHTEIN E,et al. A study on droplets sizes,their distribution and heat exchange for minimum quantity cooling lubrication (MQCL)[J]. International Journal of Machine Tools & Manufacture,2016,100:81-92.
[28] 张成良. CMQL油气流场分析及内冷式刀具切削性能评价[D]. 济南:山东大学,2016. ZHANG Chengliang. Oil-air flow field analysis of CMQL and cutting performance evaluation of internal cooling cutters[D]. Jinan:Shandong University,2016.
[29] 李武刚. 空气微粒的阻力系数计算及动力学行为分析[J]. 桂林理工大学学报,2011,31(2):314-318. LI Wugang. Air resistance coefficient calculation and analysis for mote dynamic behavior in the air[J]. Journal of Guilin University of Technology,2011,31(2):314-318.
[30] 邹林涛. 低温MQL流体动力学分析及冷却、润滑性能研究[D]. 济南:山东大学,2013. ZOU Lintao. Computational fluid dynamic analysis and cooling/lubrication effect of cryogenic minimum quantity lubrication[D]. Jinan:Shandong University,2013.
[31] MARUDA R W,KROLCZYK G M,FELDSHTEIN E,et al. A study on droplets sizes,their distribution and heat exchange for minimum quantity cooling lubrication (MQCL)[J]. International Journal of Machine Tools & Manufacture,2016,100:81-92.

MQL条件下的油滴覆盖率及尺寸分布研究

Investigation of Oil Droplet Coverage Rate and Droplet Size Distribution under Minimum Quantity Lubrication Condition

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