研究目的
Investigating the removal characteristics of shop-primer paint and oxide layer by laser energy density in Q-switching ?ber laser cleaning.
研究成果
The study concludes that selecting an appropriate energy density is crucial for efficiently removing only the paint and the oxide layer without damaging the base metal in laser cleaning. The most effective laser cleaning was achieved at an energy density of 10.5 J/cm2, balancing removal efficiency and substrate protection.
研究不足
The study is limited by the need to carefully select the laser energy density and the number of scans to avoid damaging the base metal while effectively removing the paint and oxide layer. Excessive energy density can lead to low cleaning efficiency and potential damage to the substrate.
1：Experimental Design and Method Selection:
Laser cleaning was performed using a Q-switching ?ber laser with varying energy densities to remove shop-primer paint and oxide layer from a steel surface.
2：Sample Selection and Data Sources:
SS400 painted with shop-primer paint and having an oxide layer was used.
3：List of Experimental Equipment and Materials:
Q-switching ?ber laser with an average power of 100 W.
4：Experimental Procedures and Operational Workflow:
Laser beam was irradiated onto an area of 15 mm × 15 mm of the specimen with an overlap ratio of 20%.
5：0%. Data Analysis Methods:
5. Data Analysis Methods: Analysis of the surface cleaned by laser was carried out at various energy densities, including cross-section and 3D-pro?les analysis, XRD analysis, and calculation of laser cleaning efficiency.
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