Selective laser powder bed fusion for manufacturing of 3D metal-ceramic multi-materials assemblies

Veron, Frédéric; Lanoue, Fabien; Baco-Carles, Valérie; Kiryukhina, Kateryna; Vendier, O.; Tailhades, Philippe

doi:10.1016/j.addma.2021.102550

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Laser-based Powder Bed Fusion (PBF-LB/M) is one of the extensively used additive manufacturing methods (AM) as the parts manufactured have high resolution due to low layer thickness [1]. In the industry, it is a common practice to reuse the metal powder used for manufacturing parts in the PBF-LB/M process for the purpose of cutting costs and ensuring sustainability [2].…”

Section: Introductionmentioning

confidence: 99%

Effects of powder recycling on laser-based powder bed fusion produced SS316L parts

Gopaluni,

Nayak,

Piironen

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Laser-based powder bed fusion (PBF-LB/M) is one of the extensively used additive manufacturing (AM) methods as the parts printed by PBF-LB/M have high resolution due to low layer thickness. Recycling and Reusing of the powder in this process has a significant impact on the surface roughness, mechanical properties such as hardness, elastic modulus and fracture strength etc. of the manufactured parts. The aim of the present study is to understand the effects of powder recycling on the properties of SS316L parts such as hardness and surface roughness. The developed method featured the use of SS316L powder five times over with weight percentage adjusted as required for the build job. The printed parts were checked for surface roughness across different surfaces with respect to the build direction along with Vickers hardness test. The surface roughness of the parts before polishing showed a steady increasing trend of about 40% with the recycling count while there was no significant effect on hardness as the values stayed in the range of 230+/-5 HV. Powder morphology studies with SEM displayed visible changes in terms of satellite formations, broken particles etc. with the increase in counts of recycling and particle size distribution showed a linear increase with the increase in recycling counts. This study was performed within the limited scope of a bigger study for which a detailed methodology of powder recycling will be developed.

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Section: Introductionmentioning

confidence: 99%

Effects of powder recycling on laser-based powder bed fusion produced SS316L parts

Gopaluni,

Nayak,

Piironen

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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show abstract

Advancements in multi-material additive manufacturing of advanced ceramics: A review of strategies, techniques and equipment

Sun,

Zou,

Wang

et al. 2024

Materials Chemistry and Physics

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A Novel Method for Generating H2 by Activation of the μAl-Water System Using Aluminum Nanoparticles

et al. 2022

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A method is described for activation of the reaction of room temperature water with micron-scale aluminum particles (μAl) by the addition of poly(epoxyhexane)-capped aluminum nanoparticles (Al NPs). By themselves, Al NPs react vigorously and completely with water at ambient temperatures to produce H2. While pure μAl particles are unreactive toward water, mixtures of the μAl particles comprising 10 to 90% (by mass) of Al NPs, demonstrated appreciable hydrolytic activation. This activation is attributed to the reaction of the Al NPs present with water to produce a basic solution. Speciation modelling, pH studies, and powder X-ray diffraction analysis of the hydrolysis product confirm that the pH change is the key driver for the activation of μAl rather than residual heat from the exothermicity of Al NP hydrolysis. A mechanism is proposed by which the nonreactive aluminum oxide layer of the μAl is eroded under basic conditions. Mixtures 10% by mass of Al NPs can be used to produce the optimal quantity of H2.

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Selective laser powder bed fusion for manufacturing of 3D metal-ceramic multi-materials assemblies

Cited by 3 publications

References 27 publications

Effects of powder recycling on laser-based powder bed fusion produced SS316L parts

Effects of powder recycling on laser-based powder bed fusion produced SS316L parts

Advancements in multi-material additive manufacturing of advanced ceramics: A review of strategies, techniques and equipment

A Novel Method for Generating H2 by Activation of the μAl-Water System Using Aluminum Nanoparticles

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