Yulong Ma, Xingzu Ming, Songquan Jia, Kefei Liu, Haijun Xu, Binrui Fan. Study on Energy Coupling Model and Tooth Surface Morphology of Face Gear Surface Machined by Femtosecond Laser[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0714009
- Laser & Optoelectronics Progress
- Vol. 59, Issue 7, 0714009 (2022)
Fig. 1. Energy transfer process from femtosecond laser source to crystal lattice
Fig. 2. Meshing of the geometric model
Fig. 3. Variation process of electron and lattice temperature of the face gear material
Fig. 4. Simulation convergence diagram
Fig. 5. Temperature distribution of the material when the laser energy is 1.025 J/cm2. (a) Electron temperature; (b) lattice temperature
Fig. 6. Temperature distribution of the material when the laser energy is 5.255 J/cm2. (a) Electron temperature; (b) lattice temperature
Fig. 7. Lattice temperature distribution of the material along the radial and axial directions. (a) Radial lattice temperature; (b) axial lattice temperature
Fig. 8. Schematic diagram of the femtosecond laser micromachining system
Fig. 9. Experimental sample of the face gear
Fig. 10. Ablation line of materials at different energy densities. (a) Energy density is 1.025 J/cm2; (b) energy density is 5.255 J/cm2
Fig. 11. Three-dimensional ultra-depth-of-field SEM images under different energy densities. (a) Energy density is 1.025 J/cm2; (b) energy density is 5.255 J/cm2
Fig. 12. SEM images at different energy densities. (a) Energy density is 1.730 J/cm2; (b) energy density is 3.845 J/cm2; (c) energy density is 4.550 J/cm2
Fig. 13. Three-dimensional ultra-depth-of-field SEM images under different energy densities. (a) Energy density is 1.730 J/cm2; (b) energy density is 3.845 J/cm2; (c) energy density is 4.550 J/cm2
Fig. 14. Roughness of tooth surface of front face gear is finely machined. (a) Maximum roughness; (b) minimum roughness
Fig. 15. Tooth surface roughness at energy densities of 1.025 J/cm2 and 1.730 J/cm2. (a) Energy density is 1.025 J/cm2; (b) energy density is 1.730 J/cm2
Fig. 16. Tooth surface roughness at energy densities of 3.845 J/cm2 and 4.550 J/cm2. (a) Energy density is 3.845 J/cm2; (b) energy density is 4.550 J/cm2
Fig. 17. Tooth surface roughness at energy density of 5.255 J/cm2
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Table 1. Chemical composition of the face gear material 18Cr2Ni4WA
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Table 2. Simulation parameters
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Table 3. Design parameters of the face gear
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Table 4. Predicted and experimental values of the face gear
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