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Volume 42 Issue 2
May  2022
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Article Navigation >  Diamond & Abrasives Engineering  > 2022  >  42(2): 201-207
SUN Yongjie, ZHU Tao, CAI Ming, ZHANG Yuxuan, FAN Chenrui, AN Zhixin. Influence of grinding lubrication methods on surface integrity of nickel-based single crystal superalloy[J]. Diamond & Abrasives Engineering, 2022, 42(2): 201-207. doi: 10.13394/j.cnki.jgszz.2021.0114
Citation: SUN Yongjie, ZHU Tao, CAI Ming, ZHANG Yuxuan, FAN Chenrui, AN Zhixin. Influence of grinding lubrication methods on surface integrity of nickel-based single crystal superalloy[J]. Diamond & Abrasives Engineering, 2022, 42(2): 201-207. doi: 10.13394/j.cnki.jgszz.2021.0114
shu

Influence of grinding lubrication methods on surface integrity of nickel-based single crystal superalloy

doi: 10.13394/j.cnki.jgszz.2021.0114
  • 1.

    School of Mechanical Engineering, Liaoning Petrochemical University, Fushun 113001, Liaoning, China

  • 2.

    School of Innovation and Entrepreneurship, Liaoning Petrochemical University, Fushun 113001, Liaoning, China

More Information
  • Received Date: 2021-11-01
  • Accepted Date: 2021-11-22
  • Rev Recd Date: 2021-11-20
    Abstract
  • To improve the grinding surface quality of nickel-based single crystal superalloy DD5, the influence of three grinding methods (dry, conventional flood, minimal quantity lubrication) on their surface integrity was investigated using single factor experiment. The results show that under different cooling conditions, the grinding surface roughness of nickel-based single crystal superalloy DD5 is MQL, conventional flood and dry grinding from low to high. When the linear speed of the grinding wheel is small, the grinding surface quality is poor, and there are deep scratches and grooves; when the linear speed of the grinding wheel is large, the grinding surface quality is good, the grinding marks are small and evenly distributed. When the depth from the grinding surface is 5~15 μm, the subsurface microhardness of DD5 decreases sharply with the increase of depth. When the depth from the grinding surface is 20~150 μm, the subsurface microhardness of DD5 tends to balance and fluctuates around 540 HV.

     

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