Document Type
Article
Publication Date
12-30-2024
Abstract
This study investigates the ablation performance of Inconel 718, a nickel-based superalloy, and metalmatrix polycrystalline diamond (MMPCD), a super composite, using a nano-second (ns) pulsed laseracross a range of ablation conditions. Single trenches varying in energy fluence and scanning speedswere created, analyzing the experimental responses in terms of ablation rate and surface roughness.Using regression techniques, models were developed to understand these relationships. Four multi-objective optimization algorithms, weighted value grey wolf optimizer (WVGWO), multi-objectivePareto search (MOPS), multi-objective genetic algorithm (MOGA), and multi-objective sunfloweroptimization (MOSFO), were employed to optimize these models. Key findings include MMPCDachieving the highest ablation rates at maximum fluence and lower speeds with negligible recast,resulting in smoother surfaces, whereas Inconel 718 reached its peak rates at similar conditions butexhibited significant surface recast. This research provides valuable insights into ns-pulsed lasermachining for advanced materials, emphasizing the impact of fluence and scanning speed on achievinghigh ablation rates and minimal surface roughness. (PDF) Nano-second pulsed laser ablation of inconel 718 and MMPCD for simultaneous optimal ablation rate and surface quality.
Recommended Citation
Elkaseer, A., Abdelgaliel, I.H., Lambarri, J. et al. Nano-second pulsed laser ablation of inconel 718 and MMPCD for simultaneous optimal ablation rate and surface quality. Sci Rep 14, 31698 (2024). https://doi.org/10.1038/s41598-024-81233-0
