Authors:
Jordan Lacorne (Université de Lyon, INSA Lyon, France),
Eric Maire (Université de Lyon, INSA Lyon, France),
Xavier Boulnat (Université de Lyon, INSA Lyon, France),
Romain Faye (Nanoe SAS, France),
Sandra Simon (Université de Lyon, ECAM Lasalle Lyon, France)
Abstract:
Additive Manufacturing is a growing sector in industrial production. Fused Filament Fabrication (FFF) technology is developing by using new materials such as filaments incorporating metal powder (40 to 60%vol) and thermoplastic binders. After 3D printing, FFF needs two more steps: debinding, where the binder is removed, and sintering, where the porous part is densified. The nature of the protective atmosphere is critical because it influences the binder removal and also the sintering|oxidation behavior of the metal powders. This work aims to study the influence of atmosphere (gas type and flow rate) during debinding and sintering on the properties of the final parts in work tool steel (AISI H13). The link between atmosphere and carbon|oxygen uptakes, porosity, microstructure, and mechanical properties will be described.
DOI:
https://doi.org/10.59499/WP225371420