Zhaoheng Guo, Jianzhong Zhou, Xiankai Meng, Qi Sun, Ming Zhu, Jianian Yang, Qiang Fu. Nanosecond-Pulsed-Laser Paint Stripping of HT250 Gray Cast Iron[J]. Chinese Journal of Lasers, 2019, 46(10): 1002012
- Chinese Journal of Lasers
- Vol. 46, Issue 10, 1002012 (2019)
Fig. 1. Schematics of equipment and path of paint stripping. (a) Schematic of setup for laser paint stripping; (b) schematic of laser stripping path
Fig. 2. Comparison of laser paint stripping area and binarization. (a) Laser paint stripping area; (b) binarized laser paint stripping area
Fig. 3. Surface morphologies after laser stripping at different laser powers with v=8000 mm/s and f=80 kHz. (a) P=40 W; (b) P=50 W; (c) P=60 W
Fig. 4. Oxygen content after laser stripping at different laser powers
Fig. 5. Laser stripping surface and residual paint layer morphologies and EDS analysis results of base when f=80 kHz, P=50 W, and v=8000 mm/s. (a) SEM morphology; (b) EDS analysis results; (c) residual paint layer morphology of cleaning surface; (d) partial enlargement of residual paint layer
Fig. 6. Laser stripping surface and EDS analysis results when f=80 kHz, P=50 W, and v=4000 mm/s. (a) SEM morphology; (b) EDS analysis results
Fig. 7. Surface roughness for cleaning at different laser powers
Fig. 8. Surface roughness for cleaning at different cleaning speeds
Fig. 9. Effect of pulse frequency on remove rate
Fig. 10. Effect of cleaning speeding on remove rate
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Table 1. Main chemical constituents of HT250 gray cast iron
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Table 2. Main technical parameters of laser
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