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Friction

Authors

Yanbin ZHANG, School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Hao Nan LI, School of Aerospace, University of Nottingham Ningbo China, Ningbo 315100, China
Changhe LI, School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Chuanzhen HUANG, School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Hafiz Muhammad ALI, Mechanical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Xuefeng XU, Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education & Zhejiang Province, Zhejiang University of Technology, Hangzhou 310032, China
Cong MAO, College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, China
Wenfeng DING, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Xin CUI, School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Min YANG, School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Tianbiao YU, School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110006, China
Muhammad JAMIL, Industrial Engineering Department, University of Engineering and Technology Taxila, Taxila 47080, Pakistan
Munish Kumar GUPTA, School of Mechanical Engineering, Shandong University, Jinan 250061, China
Dongzhou JIA, College of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou 121001, China
Zafar SAID, College of Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates

Keywords

nano-enhanced biolubricant (NEBL), sustainable manufacturing, minimum quantity lubrication (MQL), tribological properties, machining mechanisms

Abstract

To eliminate the negative effect of traditional metal-working fluids and achieve sustainable manufacturing, the usage of nano-enhanced biolubricant (NEBL) is widely researched in minimum quantify lubrication (MQL) machining. It’s improved tool wear and surface integrity have been preliminarily verified by experimental studies. The previous review papers also concluded the major influencing factors of processability including nano-enhancer and lubricant types, NEBL concentration, micro droplet size, and so on. Nevertheless, the complex action of NEBL, from preparation, atomization, infiltration to heat transfer and anti-friction, is indistinct which limits preparation of process specifications and popularity in factories. Especially in the complex machining process, in-depth understanding is difficult and meaningful. To fill this gap, this paper concentrates on the comprehensive quantitative assessment of processability based on tribological, thermal, and machined surface quality aspects for NEBL application in turning, milling, and grinding. Then it attempts to answer mechanisms systematically considering multi-factor influence of molecular structure, physicochemical properties, concentration, and dispersion. Firstly, this paper reveals advanced lubrication and heat transfer mechanisms of NEBL by quantitative comparison with biolubricant-based MQL machining. Secondly, the distinctive film-formation, atomization, and infiltration mechanisms of NEBL, as distinguished from metal-working fluid, are clarified combining with its unique molecular structure and physical properties. Furtherly, the process optimization strategy is concluded based on the synergistic relationship analysis among process variables, physicochemical properties, machining mechanisms, and performance of NEBL. Finally, the future development directions are put forward aiming at current performance limitations of NEBL, which requires improvement on preparation and jet methods respects. This paper will help scientists deeply understand effective mechanism, formulate process specifications, and find future development trend of this technology.

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