Infrared and Laser Engineering, Volume. 50, Issue 6, 20200403(2021)

Study on the material removal mechanism of ZnSe crystal via ultra-precision diamond turning

Ruiwen Geng1, Qiming Xie2、*, Wanqing Zhang2, Jie Kang2, Yueqing Liang2, Xiaojing Yang1, and Rui Li3
Author Affiliations
  • 1Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China
  • 2Kunming Institute of Physics, Kunming 650233, China
  • 3Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
  • show less
    Figures & Tables(13)
    Experimental step-ups and schematic of cutting experiments. (a) the ultra-precion lathe; (b) enlarged view of workpiece; (c) the machined groove of plunge-cutting test; (d) schematic of machined surface for face-turning test
    Typical FESEM image of ZnSe crystal machined groove by using. (a) tool I with 0° rank angle; (b) tool II with −25° rank angle; (c) Enlarged region I; (d) Enlarged region II
    Ductile-brittle transition depth by using tool I and tool II
    Schematic of the tool-workpiece contract in ultra-precision machining
    2D counter plot of hmax vs depth of cut and feed rate
    FESEM image of surface morphology under different feed rates. (a) 2 μm/rev; (b) 1.5 μm/rev; (c) 1 μm/rev; (d) 0.5 μm/rev
    Mechanism of surface damage formation: (a) Step-liked cracks; (b) Micro-pits
    3D surface morphany at different feed rates. (a) 2 μm/rev; (b) 1.5 μm/rev; (c) 1 μm/rev; (d) 0.5 μm/rev
    Surface roughness under different feed rates
    Raman spectra of the machined surface under different feed rates
    Raman spectra of the chips under different feed rates
    • Table 1. Material properties of ZnSe crystal[21]

      View table
      View in Article

      Table 1. Material properties of ZnSe crystal[21]

      MaterialZnSe
      Grain size (typical) /μm70
      Yang’s modulus /GPa79
      Hardness /GPa1.2
      Fracture toughness/MPa·m0.50.9
      Poisson ratio0.28
      Density /g·cm−35.3
    • Table 2. Cutting tool parameters and experimental condition

      View table
      View in Article

      Table 2. Cutting tool parameters and experimental condition

      No.ParametersValues
      1Nose radius/mm1.15 (tool Ⅰ), 1.12 (tool Ⅱ)
      2Rank angle/(°)−25 (tool Ⅰ), 0 (tool Ⅱ)
      3Clearance angle/(°)10 (tool Ⅰ, Ⅱ)
      4Clearance angle/(°)10 (tool Ⅰ, Ⅱ)
      5Cutting speed/m·s−18.3×10−3 (PCT), 2.88 (FTT)
      6Depth of cut/μm0-2 (PCT), 3 (FTT)
      7Feed rate/μm·rev−10.5, 1, 1.5 and 2 (FTT)
    Tools

    Get Citation

    Copy Citation Text

    Ruiwen Geng, Qiming Xie, Wanqing Zhang, Jie Kang, Yueqing Liang, Xiaojing Yang, Rui Li. Study on the material removal mechanism of ZnSe crystal via ultra-precision diamond turning[J]. Infrared and Laser Engineering, 2021, 50(6): 20200403

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Infrared technology and application

    Received: Oct. 22, 2020

    Accepted: --

    Published Online: Aug. 19, 2021

    The Author Email: Qiming Xie (646010668@qq.com)

    DOI:10.3788/IRLA20200403

    Topics