Infrared and Laser Engineering, Volume. 50, Issue 6, 20200403(2021)
Study on the material removal mechanism of ZnSe crystal via ultra-precision diamond turning
Fig. 1. 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
Fig. 2. 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
Fig. 3. Ductile-brittle transition depth by using tool I and tool II
Fig. 4. Schematic of the tool-workpiece contract in ultra-precision machining
Fig. 6. 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
Fig. 7. Mechanism of surface damage formation: (a) Step-liked cracks; (b) Micro-pits
Fig. 8. 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
Fig. 10. Raman spectra of the machined surface under different feed rates
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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
Category: Infrared technology and application
Received: Oct. 22, 2020
Accepted: --
Published Online: Aug. 19, 2021
The Author Email: Qiming Xie (646010668@qq.com)