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Journal of Mechanical Science and Technology

, Volume 32, Issue 7, pp 3283–3290 | Cite as

High speed grinding characteristics and machinability of WC-10Co-4Cr coatings deposited via high velocity oxygen fuel spraying

  • Zhentao Shang
  • Cheng Xu
  • Guizhi Xie
  • Jun Yi
  • Han Huang
Article

Abstract

Tungsten carbide cobalt coatings are widely employed for fabricating the parts used in corrosive and abrasive environments. The coatings are often deposited on substrates via high velocity oxygen fuel spraying, which are relatively hard and brittle and difficult to machine. This work systematically investigated the effect of high speed grinding conditions on the removal characteristics and machinability of WC-10Co-4Cr coatings. The wheel speed was found to have significant effect on grinding force and temperature. The subsurface damage could be considerably reduced when the grinding conditions were judiciously selected. The high speed grinding process being developed produced a satisfactory subsurface damage layer of smaller than 15 mm without spalling and large cracking that were usually observed in conventional grinding, suggesting its suitability for post-processing of the coating/substrate system.

Keywords

High speed grinding Coating Removal Temperature Subsurface damage 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Zhentao Shang
    • 1
  • Cheng Xu
    • 2
  • Guizhi Xie
    • 1
  • Jun Yi
    • 1
  • Han Huang
    • 3
  1. 1.College of Mechanical and Vehicle Engineering, National Engineering Research Center for High Efficiency GrindingHunan UniversityHunanChina
  2. 2.College of Materials Science and EngineeringHunan UniversityHunanChina
  3. 3.School of Mechanical and Mining EngineeringThe University of QueenslandQueenslandAustralia

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