In situ 3D X-ray microtomography of laser-based powder-bed fusion (L-PBF) - A feasibility study - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Additive Manufacturing Année : 2020

In situ 3D X-ray microtomography of laser-based powder-bed fusion (L-PBF) - A feasibility study

Résumé

X-ray microtomography can be used to characterise objects undergoing fabrication by additive manufacturing. During the layer-by-layer building process, it can provide key information about geometry, roughness and it can even reveal typical defects such as lack-of-fusion porosity, gas pores or cracks. Usually, objects are built with varied processing parameters and then characterised post-mortem. In the present work, we describe our custom-designed additive manufacturing chamber allowing in situ 3D-non-destructive characterisation to be performed during layer-by-layer construction using synchrotron X-ray microtomography. Scans before (subsequently to powder deposition) and after local laser melting are acquired for every layer. A few examples of such a characterisation demonstrate the ability of the setup to reproduce conditions close to those used in conventional laser powder-bed fusion devices and to reveal key phenomena.
Fichier principal
Vignette du fichier
Lhuissier et al_AddditiveManufacturing_2020.pdf (2.34 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02558318 , version 1 (29-04-2020)

Identifiants

Citer

Pierre Lhuissier, Xavier Bataillon, Camille Maestre, Julien Sijobert, Elodie Cabrol, et al.. In situ 3D X-ray microtomography of laser-based powder-bed fusion (L-PBF) - A feasibility study. Additive Manufacturing, 2020, 34, ⟨10.1016/j.addma.2020.101271⟩. ⟨hal-02558318⟩
144 Consultations
196 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More