Dongshuai Liu, Yanming Lü, Wenjun Zhou, Hua Yang, Kang Wang. Numerical Simulation of Temperature Field in TIG Arc-Additive Manufacturing Based on ANSYS[J]. Laser & Optoelectronics Progress, 2019, 56(24): 241405
- Laser & Optoelectronics Progress
- Vol. 56, Issue 24, 241405 (2019)
Fig. 1. Physical and point cloud data of weld bead. (a) Single-layer weld bead; (b) point cloud of weld bead
Fig. 2. Simplified weld bead section model
Fig. 3. Finite element mesh model
Fig. 4. Temperature distribution of plate for 70-s cooling after welding
Fig. 5. Node selection and temperature distribution at different time. (a) Node selection; (b) temperature after welding and temperature for 70-s cooling after welding
Fig. 6. Variation in temperature at each edge point of weld with time
Fig. 7. Comparison of simulated and actual temperatures of weld bead edge at different time. (a) After welding; (b) cooling for 70 s after welding
Fig. 8. Variation in temperature of welding end point with time
Fig. 9. Variation in temperature at the midpoint of weld bead edge with time
Fig. 10. Multi-layer welding grid model. (a) Model of weld bead; (b) grids of weld bead
Fig. 11. Variation in temperature at midpoint of intersection line of bead edge and substrate with time
Fig. 12. Variation on temperature at peak of side wall center of each welding layer with time
Fig. 13. Temperature distribution of wave peaks in each layer
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Table 1. Chemical composition of substrate and wire
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Table 2. Thermophysical coefficients of ER50-6 and 45 steel
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