An experimental investigation on surface layer damage in high-efficiency and low-damage grinding of rail by slotted CBN grinding wheel

  • Yao Wu
  • Mengbo Shen
  • Meina QuEmail author
  • Guizhi Xie
  • Zhentao Shang
  • Tan Jin


Rail grinding is an important part of rail maintenance. However, the processing efficiency of rail grinding by corundum grinding wheel is low due to the limitation of grinding thermal damage. In this work, a slotted single-layer brazed CBN grinding wheel is used to repair the rail surface replacing corundum grinding wheel, because the CBN abrasive has better heat conduction performance, and the slot structure can reduce the heat transferred workpiece. The influence of grinding parameters on the grinding forces, temperature, ground surface quality (e.g., surface roughness, surface microstructure, subsurface hardness, and subsurface damage) is investigated compared with the corundum grinding wheel. Results showed that the slotted single-layer brazed CBN grinding wheel possesses a better surface roughness and lower surface damage depth and can improve the grinding efficiency of the rail by seven times.


Rail grinding Slotted CBN grinding wheel Specific material removal rate Surface layer damage Grinding efficiency 


Funding information

The authors would like to thank for the financial support from Central State–owned Capital Management Budget Expenditure Project of China (Industrialization of rail efficient lightweight milling-grinding operating system), and the Science and Technology Research Project of Golden Eagle Heavy Engineering Machinery Co., Ltd. (No.2018–010).


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Yao Wu
    • 1
    • 2
  • Mengbo Shen
    • 1
    • 2
  • Meina Qu
    • 1
    • 2
    Email author
  • Guizhi Xie
    • 1
    • 2
  • Zhentao Shang
    • 1
    • 2
  • Tan Jin
    • 1
    • 2
  1. 1.National Engineering Research Centre for High Efficiency GrindingHunan UniversityChangshaChina
  2. 2.College of Mechanical and Vehicle EngineeringHunan UniversityChangshaChina

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