Rongwei ZHA, Lidong YU, Ben LI, Yang BAI. Laser Cleaning Process Monitoring of Metal Surface Based on Image Processing and LIPS Analysis[J]. Acta Photonica Sinica, 2021, 50(7): 249
- Acta Photonica Sinica
- Vol. 50, Issue 7, 249 (2021)
Fig. 1. Photo of rust layer on steel plate sample. The illustration shows the 200 times optical micrograph of the rust layer section
Fig. 2. Schematic of on-line monitoring system for laser cleaning. The illustrations are the 2D distribution of beam energy and the path diagram of laser cleaning
Fig. 3. Variation between the number of cleaning and the rust cleaning rate at different overlap ratios
Fig. 4. Macro and micro images of the steel plate sample surface after laser cleaning
Fig. 5. Variation between the number of cleaning and LIBS at different rust layer and corresponding correlation coefficient γ
Fig. 6. Flow chart of laser cleaning process monitoring based on the cooperation of image processing and LIPS analysis
Fig. 7. Macro photos， micro 3D， 2D topography images of the steel plate sample surface before and after laser cleaning based on the process monitoring method
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Table 1. Performance parameters of laser cleaning system
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Table 2. EDS analysis of four different color areas
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Table 3. Characteristic spectral lines of steel substrate in LIPS
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Table 4. Data comparison between single monitoring and cooperative monitoring after laser cleaning
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