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

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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.

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Authors and Affiliations

  1. College of Mechanical and Vehicle Engineering, National Engineering Research Center for High Efficiency Grinding, Hunan University, Hunan, China

    Zhentao Shang, Guizhi Xie & Jun Yi

  2. College of Materials Science and Engineering, Hunan University, Hunan, China

    Cheng Xu

  3. School of Mechanical and Mining Engineering, The University of Queensland, Queensland, QLD4072, Australia

    Han Huang

Authors
  1. Zhentao Shang
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  2. Cheng Xu
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  3. Guizhi Xie
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  4. Jun Yi
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  5. Han Huang
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Corresponding author

Correspondence to Han Huang.

Additional information

Recommended by Associate Editor Haseung Chung

Zhentao Shang is an Assistant Professor in the College of Mechanical and Vehicle Engineering at Hunan University (China) after obtained his Ph.D. in mechanical engineering in 2009. His research is largely concerned with conventional and high speed grinding technologies for difficult-to-machine materials and design of special grinding machine tools.

Han Huang received his Ph.D. from The University of Western Australia in 1996. He now works at The University of Queensland (Australia) as the Professor of Manufacturing. Prof. Huang’s research interests include additive manufacturing, machining technologies, mechanical characterization of nanostructured materials and nanostructures and nanoparticle based lubrication.

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Shang, Z., Xu, C., Xie, G. et al. High speed grinding characteristics and machinability of WC-10Co-4Cr coatings deposited via high velocity oxygen fuel spraying. J Mech Sci Technol 32, 3283–3290 (2018). https://doi.org/10.1007/s12206-018-0630-x

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  • DOI: https://doi.org/10.1007/s12206-018-0630-x

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