Effect of Laser Scanning Speeds on Cleaning Quality of Rusted Layer on Q345 Steel Surface

Multi-Objective Optimization of Laser Cleaning Quality of Q390 Steel Rust Layer Based on Response Surface Methodology and NSGA-II Algorithm

“…Therefore, it is necessary to properly treat the surface of Q390 steel plates before welding. Although the commonly used treatment methods, such as manual grinding, mechanical grinding, and chemical cleaning, have practical applications, they also have limitations [3,4].…”

“…Narayanan et al [12] systematically observed the effects of varying parameters such as scanning speed and the number of passes on the removal depth, surface profile, roughness, and hardness of processed surfaces. In addition, Li et al [3] explored the impact of laser scanning speed on the cleaning quality of Q345 steel, finding that the optimal cleaning effect was achieved at 3000 mm/s and noting a trend where oxygen content decreased initially and then increased as speed increased from 1000 mm/s to 6000 mm/s postcleaning. Finally, Wu et al [13] investigated how laser power and cleaning speed affected the macroscopic and microscopic surface morphology of cleaned specimens, revealing the formation of a re-melted layer on the substrate surface post-cleaning, which correspondingly enhanced its corrosion resistance.…”

Numerical simulation of millisecond laser removal of thermal barrier coatings based on volume of fluid method

“…Laser cleaning is always considered as a very complex process influenced by multiple mechanisms 7 – 11 In the process of laser cleaning, the factors affecting the cleaning effect are laser wavelengths, 12 defocusing amount, scanning speed, 13 energy density, 14 , 15 and processing environment. When using a pulsed laser, the laser frequency, 16 pulse width, and laser waveform 17 also have an impact on the laser energy output.…”