Wei Lu, Xuyi Ma, Aiqin Duan, Xuedong Wang. Weld Formation and StabilityAnalysis of Fiber Laser Beam Welded BTi6431S Titanium Alloy[J]. Laser & Optoelectronics Progress, 2020, 57(13): 131405
- Laser & Optoelectronics Progress
- Vol. 57, Issue 13, 131405 (2020)
Fig. 1. Weld appearance of BTi6431S titanium alloys. (a) Surface topography; (b) morphology
Fig. 2. Effect of laser power on weld formation characteristic value (v=2.5 m/min). (a) Weld width; (b) reinforcement and underfill
Fig. 3. Effect of welding speed on weld formation characteristic value (P=3.5 kW). (a) Weld width; (b) reinforcement and underfill
Fig. 4. Effect of laser power on pore distribution and porosity. (a) Lack of penetration weld; (b) penetration weld-single pore; (c) penetration weld-linear pore; (d)(e) porosity
Fig. 5. Typical metal vapor / plasma image changes
Fig. 6. Characteristic of metal vapor / plasma of different welding processes. (a) Laser power (v=2.5 m/min); (b) welding speed (P=3.5 kW)
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Table 1. Chemical compositions of BTi6431S alloy (mass fraction, %)
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