Temperature field model and experimental verification on cryogenic air nanofluid minimum quantity lubrication grinding

  • Jianchao Zhang
  • Changhe Li
  • Yanbin Zhang
  • Min Yang
  • Dongzhou Jia
  • Yali Hou
  • Runze Li
ORIGINAL ARTICLE
  • 11 Downloads

Abstract

Considering the poor lubricating effect of cryogenic air (CA) and inadequate cooling ability of nanofluid minimum quantity lubrication (NMQL), this work proposes a new manufacturing technique cryogenic air nanofluid minimum quantity lubrication (CNMQL). A heat transfer coefficient and a finite difference model under different grinding conditions were established based on the theory of boiling heat transfer and conduction. The temperature field in the grinding zone under different cooling conditions was simulated. Results showed that CNMQL exerts the optimal cooling effect, followed by CA and NMQL. On the basis of model simulation, experimental verification of the surface grinding temperature field under cooling conditions of CA, MQL, and CNMQL was conducted with Ti–6Al–4V as the workpiece material. Simultaneously, CNMQL exhibits the smallest specific tangential and normal grinding forces (2.17 and 2.66 N/mm, respectively). Further, the lowest grinding temperature (155.9 °C) was also obtained, which verified the excellent cooling and heat transfer capabilities of CNMQL grinding. Furthermore, the experimental results were in agreement with theoretical analysis, thereby validating the accuracy of the theoretical model.

Keywords

Grinding Cryogenic air Nanofluid minimum quantity lubrication Finite difference simulation Heat transfer coefficient Temperature field Boiling heat transfer 

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Notes

Acknowledgments

This research was financially supported by the following foundation items: The National Natural Science Foundation of China (51575290), Major Research Project of Shandong Province (2017GGX30135), and Shandong Provincial Natural Science Foundation, China (ZR2017PEE002 and ZR2017PEE011).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  • Jianchao Zhang
    • 1
  • Changhe Li
    • 1
  • Yanbin Zhang
    • 1
  • Min Yang
    • 1
  • Dongzhou Jia
    • 1
  • Yali Hou
    • 1
  • Runze Li
    • 2
  1. 1.School of Mechanical EngineeringQingdao University of TechnologyQingdaoChina
  2. 2.Department of Biomedical EngineeringUniversity of Southern CaliforniaLos AngelesUSA

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