Tribological Performance of Different Concentrations of Al_(2)O_(3)Nanofluids on Minimum Quantity Lubrication Milling

作     者：Xiufang Bai Juan Jiang Changhe Li Lan Dong Hafiz Muhammad Ali Shubham Sharma Xiufang Bai;Juan Jiang;Changhe Li;Lan Dong;Hafiz Muhammad Ali;Shubham Sharma

作者机构：School of Mechanical and Automotive EngineeringQingdao University of TechnologyQingdao 266520China School of Mechanical and Electrical EngineeringQingdao Binhai UniversityQingdao 266555China Mechanical Engineering DepartmentKing Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Mechanical EngineeringIK Gujral Punjab Technical UniversityMain Campus-KapurthalaJalandhar 144603India 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2023年第36卷第4期

页      面：67-78页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0901[农学-作物学] 080201[工学-机械制造及其自动化] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Supported by National Natural Science Foundation of China(Grant Nos.51806112,51975305) PhD Research Startup Foundation of Qingdao University of Technology,China(Grant Nos.JC2022-012,20312008). 

主　　题：Milling Al_(2)O_(3)nanofluid Minimum quantity lubrication(MQL) Surface micromorphology 

摘      要：Nanofluid minimum quantity lubrication(NMQL)is a green processing technology.Cottonseed oil is suitable as base oil because of excellent lubrication performance,low freezing temperature,and high yield.Al_(2)O_(3)nanoparticles improve not only the heat transfer capacity but also the lubrication performance.The physical and chemical proper-ties of nanofluid change when Al_(2)O_(3)nanoparticles are added.However,the effects of the concentration of nanofluid on lubrication performance remain unknown.Furthermore,the mechanisms of interaction between Al_(2)O_(3)nanoparti-cles and cottonseed oil are unclear.In this research,nanofluid is prepared by adding different mass concentrations of Al_(2)O_(3)nanoparticles(0,0.2%,0.5%,1%,1.5%,and 2%wt)to cottonseed oil during minimum quantity lubrication(MQL)milling 45 steel.The tribological properties of nanofluid with different concentrations at the tool/workpiece interface are studied through macro-evaluation parameters(milling force,specific energy)and micro-evaluation parameters(surface roughness,micro morphology,contact angle).The result show that the specific energy is at the minimum(114 J/mm^(3)),and the roughness value is the lowest(1.63μm)when the concentration is 0.5 wt%.The surfaces of the chip and workpiece are the smoothest,and the contact angle is the lowest,indicating that the tribological proper-ties are the best under 0.5 wt%.This research investigates the intercoupling mechanisms of Al_(2)O_(3)nanoparticles and cottonseed base oil,and acquires the optimal Al_(2)O_(3)nanofluid concentration to receive satisfactory tribological properties.