Rui Ming, Jingwei Shen, Mingtao Lai, Yulong Ma, Xian Zhou, Xingzu Ming. Characteristics of Femtosecond Laser Microprecision Ablation of 18Cr2Ni4WA Steel Used in Face Gears[J]. Laser & Optoelectronics Progress, 2021, 58(9): 0914001
- Laser & Optoelectronics Progress
- Vol. 58, Issue 9, 0914001 (2021)
Fig. 1. Electron and lattice temperatures of ablated material of face gear under different pulse widths. （a） Electron temperature;（b） lattice temperature
Fig. 2. Electron and lattice temperatures of ablated material of face gear under different average powers. （a） 0.7 W; （b） 0.9 W;（c） 2 W; （d） 3.5 W
Fig. 3. Electron and lattice temperatures of ablated face gear material at high average power. （a） 6.45 W; （b） 7.83 W
Fig. 4. Three-dimensional temperature field distributions of electron and lattice at an average power of 2 W. （a） Electron； （b） lattice
Fig. 5. Three-dimensional temperature field distributions of electron and lattice at an average power of 6 W. （a） Electron； （b） lattice
Fig. 6. Schematic of femtosecond laser micromachining system
Fig. 7. Energy density distribution of Gaussian beam
Fig. 8. Relationship between D2 and ln P under single pulse laser
Fig. 9. Ablative ring morphologies under different average powers. （a） 3.5 W; （b） 4.98 W; （c） 6.45 W; （d） 10.04 W
Fig. 10. Micro-morphologies of tooth ablation pit under different pulse numbers. （a） N=10; （b） N=100; （c） N=200; （d） N=500
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Table 1. Simulation parameters
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Table 2. Chemical composition of face gear material 18Cr2Ni4WA
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