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Grinding characteristics in high-speed grinding of boron-diffusion-hardened TC21-DT titanium alloy with vitrified CBN wheel

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Abstract

An investigation was undertaken to seek the grinding characteristics in the grinding of boron-diffusion-hardened TC21-DT titanium alloy using a vitrified CBN wheel. The grinding forces and temperature were measured and the morphological properties of ground surfaces were examined. The results indicated that, for conventional speed grinding, material removal was mainly dominated by ploughing coupled with somewhat shearing. For the high-speed grinding process, due to the different mechanical properties between titanium substrate and hard phase particles, the strain gradient effect in the primary deformation zone (PDZ) appeared to arise. Moreover, when the grinding speed was increased to 120 m/s, chip formation by the shearing process was accounted for a positive role, resulting in a considerable improvement in the ground surface roughness. In addition, the modeling of the specific grinding energy in the PDZ, during the grinding process, was provided, and the general trend predicted by the model was found to be the same as that investigated by experimental results.

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Authors and Affiliations

  1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People’s Republic of China

    Yansong Zhu, Wenzhuang Lu, Yuli Sun & Dunwen Zuo

  2. School of Mechanical Engineering, Anhui University of Science and Technology, Huainan, 232001, People’s Republic of China

    Yansong Zhu

  3. Changzhou Joel Plastic CO., LTD, Changzhou, 213373, People’s Republic of China

    Yansong Zhu

Authors
  1. Yansong Zhu
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  2. Wenzhuang Lu
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  3. Yuli Sun
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  4. Dunwen Zuo
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Correspondence to Wenzhuang Lu.

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Zhu, Y., Lu, W., Sun, Y. et al. Grinding characteristics in high-speed grinding of boron-diffusion-hardened TC21-DT titanium alloy with vitrified CBN wheel. Int J Adv Manuf Technol 89, 1269–1277 (2017). https://doi.org/10.1007/s00170-016-9193-0

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  • DOI: https://doi.org/10.1007/s00170-016-9193-0

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