Akopyan, Ekaterina, Bordatchev, Evgueni et Tutunea-Fatan, O. Remus.
2025.
« Analysis of topography formation during surface structuring by laser remelting ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
Prévisualisation |
PDF
198 - Analysis of topography formation d.pdf - Version publiée Licence d'utilisation : Tous les droits réservés aux détenteurs du droit d'auteur. Télécharger (1MB) | Prévisualisation |
Résumé
Surface topographies with specific geometric structures enable functionalities such as friction control, optical tuning, and aerodynamic optimization. Laser-based techniques such as direct laser writing and interference patterning create functional surfaces at micro- and nanoscales but rely on material removal. By contrast, laser remelting (LRM) redistributes molten material without adding or removing it, thus offering a novel approach to surface structuring. This study investigates LRM for fabricating sine-structured surfaces (SSS) subjected to a 15 W ± 5 W laser power modulation and scanning speeds of 100-500 mm/s. Form non-uniformity parameters - including period, amplitude, and phase shift - were analyzed and revealed that the scanning speed significantly affects structure formation. While 100, 200, 400, and 500 mm/s produced stable structures, 300 mm/s resulted in the highest deviations, suggesting instability. These findings highlight the importance of LRM process parameters in achieving consistent structures. Future research will focus on real-time thermographic monitoring to better understand LRM thermodynamics and explore its applications in aerospace, automotive, marine, energy, and biomedical sectors.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Date de dépôt: | 18 déc. 2025 15:07 |
| Dernière modification: | 18 déc. 2025 15:07 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32352 |
Actions (Authentification requise)
 |
Dernière vérification avant le dépôt |