Chinese Journal of Lasers, Volume. 46, Issue 10, 1002004(2019)
Simulation Analysis of Temperature Field and Process Optimization of Laser Cladding Based on Internal Wire Feeding of Three Beams
Figures & Tables(21)
Fig. 1. Coupling principle of light and wire. (a) Coupling model; (b) light spot location
Fig. 4. Diagrams of temperature curves obtained by simulation and measurement with thermometer.(a) Simulation; (b) thermometer test
Fig. 5. Temperature profiles of longitudinal section and cross section of basal plate. (a) DF; (b) BE; (c) BC
Fig. 7. Cloud charts of temperature distributions of molten pool at different defocusing amounts. (a) -2 mm; (b) -1 mm
Fig. 8. Cross sections of cladding layer obtained at different defocusing amounts. (a) -2 mm; (b) -1 mm
Fig. 9. Cloud charts of temperature distributions of molten pool at different laser powers. (a) 1400 W; (b) 1700 W
Fig. 10. Cross sections of cladding layer obtained at different laser powers. (a) 1400 W; (b) 1700 W
Fig. 11. Cloud charts of temperature distributions of molten pool at different scanning speeds. (a) 3 mm/s; (b) 7 mm/s
Fig. 12. Cross sections of cladding layer obtained at different scanning speeds. (a) 3 mm/s; (b) 7 mm/s
Fig. 13. Cloud charts of temperature field at different scanning directions. (a) 0°; (b) 15°; (c) 30°; (d) 45°; (e) 60°
Fig. 14. Cross sections of cladding layer obtained at different scanning directions. (a) 0°; (b) 15°; (c) 30°; (d) 45°; (e) 60°
Fig. 15. Single cladding layer and cross section. (a) Cladding layer; (b) cross section; (c) texture
Table 1. Chemical compositions of metal wire materials
View tableTable 1. Chemical compositions of metal wire materials
Element C Mn Si S P Ni Cr Cu Mass fraction /% 0.06-0.15 1.40-1.85 0.80-1.15 ≤0.025 ≤0.025 ≤0.015 ≤0.15 ≤0.50
Table 2. Width and height of cladding layer obtained at different defocusing amounts
View tableTable 2. Width and height of cladding layer obtained at different defocusing amounts
No. Defocusing amount /mm Width / mm Height / mm Ratio of width to height 1 -0.5 2.88 1.04 2.77 2 -1 3.22 1.02 3.15 3 -1.5 3.42 0.96 3.56 4 -2 3.66 0.82 4.46 5 -2.5 4.18 0.86 4.86 6 -3 4.50 0.78 5.77
Table 3. Width and height of cladding layer obtained at different laser powers
View tableTable 3. Width and height of cladding layer obtained at different laser powers
No. Power / W Width / mm Height / mm Ratio of width to Height 1 1300 3.52 0.80 4.40 2 1400 3.60 0.72 5.00 3 1500 3.70 0.68 5.44 4 1600 3.64 0.66 5.69 5 1700 3.80 0.62 6.13 6 1800 3.94 0.64 5.97
Table 4. Width and height of cladding layer obtained at different scanning speeds
View tableTable 4. Width and height of cladding layer obtained at different scanning speeds
No. Speed / (mm·s-1) Width / mm Height / mm Ratio of width to height 1 1.5 3.62 2.42 1.50 2 2 3.60 1.96 1.84 3 3 3.62 1.34 2.70 4 4 3.54 1.08 3.28 5 5 3.34 0.9 3.71 6 6 3.30 0.94 3.51 7 7 3.16 0.82 3.85
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Jiping Zhang, Shihong Shi, Weiwei Jiang, Tuo Shi, Shaoshan Ji. Simulation Analysis of Temperature Field and Process Optimization of Laser Cladding Based on Internal Wire Feeding of Three Beams[J]. Chinese Journal of Lasers, 2019, 46(10): 1002004
Paper Information
Category: laser manufacturing
Received: Apr. 26, 2019
Accepted: Jun. 5, 2019
Published Online: Oct. 25, 2019
The Author Email: Shi Shihong (shishihong@suda.edu.cn)
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