Guo Qingfeng, Zhang Zheng, Huang Lijie, Lin Wenxiong. Effects of Pulsed Laser on Surface Quality and Deformation of Selective Laser Melted Ti6Al4V Titanium Alloy[J]. Laser & Optoelectronics Progress, 2020, 57(21): 211404
- Laser & Optoelectronics Progress
- Vol. 57, Issue 21, 211404 (2020)
Fig. 1. SEM image of TC4 titanium alloy powder
Fig. 2. Relative density of TC4 titanium samples under different laser parameters
Fig. 3. SEM images of TC4 titanium samples under different pulse duty cycles. (a)--(d) Pulse duty cycle is 30%, 50%, 60%, 100%, when the laser power is 110 W; (e)--(f) pulse duty cycle is 30%, 80 %, when the laser power is 190 W
Fig. 4. Surface roughness of TC4 titanium samples under different parameters
Fig. 5. SEM images of TC4 titanium sample surface under different pulse duty cycles (laser power is 110 W).(a) 30%; (b) 50%; (c) 60%; (d) 70%; (e) 80%; (f) 100%
Fig. 6. SEM images of TC4 titanium sample surface under different pulse duty cycles (laser power is 190 W).(a) 30%; (b) 50%; (c) 60%; (d) 70%; (e) 80%; (f) 100%
Fig. 7. SEM images of TC4 titanium samples under different pulse duty cycles. (a) 30%; (b) 50%; (c) 70%; (d) 100%
Fig. 8. Deformation of the printed part when the laser power is 190 W. (a) Laser with pulse duty cycle is 70%;(b) continuous laser
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Table 1. Composition of TC4 titanium alloy powder
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