Comparación de polvos PA12 residuo de sinterizado láser selectivo con fines de reúso funcional

Ríos, Sergio Esteban Arbelaez; Armendáriz, César Omar Balderrama; Martel-Estrada, Santos-Adriana; Sáenz, David Cortés; Salgado, María Paulina Restrepo

doi:10.20983/culcyt.2021.1.2.2

Cited by 1 publication

(2 citation statements)

References 27 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, 2021) are affected, while the average particle size does not change significantly (Al Amin et al. , 2022; Arbelaez Ríos et al. , 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Commonly, PA12 recycled is mixed with 30%-50% of virgin powder to refresh the properties (Gomes et al, 2022a;Wegner et al, 2014). However, even after refreshing an aging powder, the mechanical (Gomes et al, 2022b;Guo et al, 2023;Lopes et al, 2021;Mwania et al, 2020;Yao et al, 2020) and thermal properties (Alo et al, 2023a;He et al, 2022;Mwania et al, 2020;Wudy and Drummer, 2019;Yang et al, 2021) are affected, while the average particle size does not change significantly (Al Amin et al, 2022;Arbelaez Ríos et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recovery of residual polyamide (PA12) from polymer powder bed fusion additive manufacturing process through a binder jetting process

Balderrama-Armendariz,

Arbelaez-Rios,

Martel-Estrada

et al. 2024

RPJ

View full text Add to dashboard Cite

Purpose This study aims to propose the reuse of PA12 (powder) in another AM process, binder jettiinng, which is less sensitive to the chemical and mechanical degradation of the powder after multiple cycles in the laser system. Design/methodology/approach The experimental process for evaluating the reuse of SLS powders in a subsequent binder jetting process consists of four phases: powder characterization, bonding analysis, mixture testing and mixture characteristics. Analyses were carried out using techniques such as Fourier Transform Infrared Spectroscopy, scanning electron microscopy, thermogravimetric analysis and stress–strain tests for tension and compression. The surface roughness, color, hardness and density of the new mixture were also determined to find physical characteristics. A Taguchi design L8 was used to search for a mixture with the best mechanical strength. Findings The results indicated that the integration of waste powder PA12 with calcium sulfate hemihydrate (CSH) generates appropriate particle distribution with rounded particles of PA12 that improve powder flowability. The micropores observed with less than 60 µm, facilitated binder and infiltrant penetration on 3D parts. The 60/40 (CSH-PA12) mixture with epoxy resin postprocessing was found to be the best-bonded mixture in mechanical testing, rugosity and hardness results. The new CSH-PA12 mixture resulted lighter and stronger than the CSH powder commonly used in binder jetting technology. Originality/value This study adds value to the polymer powder bed fusion process by using its waste in a circular process. The novel reuse of PA12 waste in an established process was achieved in an accessible and economical manner.

show abstract

“…, 2021) are affected, while the average particle size does not change significantly (Al Amin et al. , 2022; Arbelaez Ríos et al. , 2021).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recovery of residual polyamide (PA12) from polymer powder bed fusion additive manufacturing process through a binder jetting process

Balderrama-Armendariz,

Arbelaez-Rios,

Martel-Estrada

et al. 2024

RPJ

View full text Add to dashboard Cite

show abstract

Comparación de polvos PA12 residuo de sinterizado láser selectivo con fines de reúso funcional

Cited by 1 publication

References 27 publications

Recovery of residual polyamide (PA12) from polymer powder bed fusion additive manufacturing process through a binder jetting process

Recovery of residual polyamide (PA12) from polymer powder bed fusion additive manufacturing process through a binder jetting process

Contact Info

Product

Resources

About