Ming Pang, Wendan Tan. Numerical Simulation of Temperature Field During Laser Transformation Hardening Vermicular Graphite Cast Iron Based on Beam Discretization[J]. Laser & Optoelectronics Progress, 2019, 56(19): 191404
- Laser & Optoelectronics Progress
- Vol. 56, Issue 19, 191404 (2019)
Fig. 1. Two-dimensional discrete lattice spot
Fig. 2. Finite element model on account of numerical simulation of temperature field during laser transformation hardening based on beam discretization
Fig. 3. Temperature-field distributions. (a) Overall temperature distribution; (b) xz cross-section temperature distribution
Fig. 4. Temperature variation of each point with time
Fig. 5. Temperature distributions on different paths at different laser powers. (a) Path A; (b) path B
Fig. 6. Morphologies of hardened layer with different laser powers[22]. (a) P=4500 W; (b) P=5000 W; (c) P=5500 W; (d) P=6000 W
Fig. 7. Temperature distributions on different paths at different laser loading time. (a) Path A; (b) path B
Fig. 8. Morphologies of hardened layer with different laser loading time. (a) t=0.1 s; (b) t=0.2 s; (c) t=0.3 s; (d) t=0.4 s
Fig. 9. Maximum depths of hardened layer obtained under different conditions. (a) Different laser powers; (b) different laser loading time
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Table 1. Thermophysical parameters of vermicular graphite cast iron[22]
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