Description du projet
Fabrication additive pour le traitement des alliages de magnésium
La fabrication additive est une solution très prometteuse dans le domaine manufacturier, offrant divers avantages tels que la rentabilité, la rapidité, l’efficacité et la précision en fonction de la tâche à accomplir. Cependant, cette technologie se heurte à un défi de taille lorsqu’il s’agit de traiter l’alliage de magnésium, en particulier la nécessité d’utiliser des lasers spécialisés de grande puissance. Avec le soutien du programme Actions Marie Skłodowska-Curie, le projet LASER4Mg vise à améliorer les caractéristiques des lasers pour le traitement des alliages de magnésium. Il étudiera les propriétés d’absorbance spectrale optique du magnésium en caractérisant les effets du laser et en examinant l’impact des caractéristiques du processus, de la machine et de la puissance. Les résultats de cette recherche permettront non seulement de résoudre un problème critique dans l’industrie, mais aussi de fournir des informations et une expérience précieuses aux chercheurs concernés.
Objectif
The overall aim of the project is to obtain the most optimum laser characteristics that will improve the ability to process Mg alloys for laser based additive manufacturing method, which currently suffers immensely due to excessive evaporation of the powder feedstock. Lasers are a form of monochromatic electromagnetic radiation, that interact with each metal differently. In selective laser melting (SLM) process, when laser energy is applied to the Mg powder, two primary processes occur: absorption and reflectance. The laser wavelength determines the degree of absorption in the metal powder. Due to low absorbance of traditional yttrium doped fiber laser in infrared range, and low thermal conductivity, Mg processing requires using high power lasers that leads to rapid evaporation of Mg when the laser hits the melt pool.
To accomplish these goals, optical spectral absorbance properties of magnesium and its alloys in various forms (plate, block, powder) will be studied using UV-VIS-NIR spectroscopy. Effect of laser characteristics such as mode, power and wavelength on the absorbance response and process stability will be characterized. The impact of powder particle size distribution, plate thickness, surface quality, alloy compositions on laser-material interaction will be studied. The results will be used to obtain the highest success process window.
The project will create valuable knowledge for use in the field of SLM of Mg alloys. The existing scientific gaps and technological challenges associated with laser treatment of Mg alloys will be filled and sustained by commercialization by the researcher's current employer. The research plan is designed to solve an outstanding problem in the industry and will improve the long term employability of the researcher with his employer in Europe. The potential resulting technology will be a leap in the field of laser treatment of magnesium, increasing industrial capacity in EU and stimulate further R&D&I efforts. host name
Champ scientifique
- engineering and technologymaterials engineeringfibers
- natural scienceschemical sciencesinorganic chemistrytransition metals
- natural scienceschemical sciencesinorganic chemistryalkaline earth metals
- engineering and technologymechanical engineeringmanufacturing engineeringadditive manufacturing
- natural sciencesphysical sciencesopticslaser physics
Mots‑clés
Programme(s)
- HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA) Main Programme
Régime de financement
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European FellowshipsCoordinateur
1586 RIGA
Lettonie