Minimum quantity lubrication machining of aeronautical materials using carbon group nanolubricant: From mechanisms to application

Xin CUI, Changhe LI, Wenfeng DING, Yun CHEN, Cong MAO, Xuefeng XU, Bo LIU, Dazhong WANG, Hao Nan LI, Yanbin ZHANG, Zafar SAID, Sujan DEBNATH, Muhammad JAMIL, Hafiz Muhammad ALI, Shubham SHARMA

Research output: Journal PublicationReview articlepeer-review

135 Citations (Scopus)


It is an inevitable trend of sustainable manufacturing to replace flood and dry machining with minimum quantity lubrication (MQL) technology. Nevertheless, for aeronautical difficult-to-machine materials, MQL couldn't meet the high demand of cooling and lubrication due to high heat generation during machining. Nano-biolubricants, especially non-toxic carbon group nano-enhancers (CGNs) are used, can solve this technical bottleneck. However, the machining mechanisms under lubrication of CGNs are unclear at complex interface between tool and workpiece, which characterized by high temperature, pressure, and speed, limited its application in factories and necessitates in-depth understanding. To fill this gap, this study concentrates on the comprehensive quantitative assessment of tribological characteristics based on force, tool wear, chip, and surface integrity in titanium alloy and nickel alloy machining and attempts to answer mechanisms systematically. First, to establish evaluation standard, the cutting mechanisms and performance improvement behavior covering antifriction, antiwear, tool failure, material removal, and surface formation of MQL were revealed. Second, the unique film formation and lubrication behaviors of CGNs in MQL turning, milling, and grinding are concluded. The influence law of molecular structure and micromorphology of CGNs was also answered and optimized options were recommended by considering diverse boundary conditions. Finally, in view of CGNs limitations in MQL, the future development direction is proposed, which needs to be improved in thermal stability of lubricant, activity of CGNs, controllable atomization and transportation methods, and intelligent formation of processing technology solutions.

Original languageEnglish
Pages (from-to)85-112
Number of pages28
JournalChinese Journal of Aeronautics
Issue number11
Publication statusPublished - Nov 2022


  • Aerospace materials
  • Carbon nanoparticles
  • Grinding
  • Lubrication mechanism
  • Milling
  • Minimum quantity lubrication
  • Turning

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering


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