Analysis of the dimensional variation of 3D printed objects (FMD) subjected to annealing postprocessing

Naranjo, Martín Benancio Monar; Freire-Guevara, Belén; Sánchez-Pombosa, Cristhian

doi:10.15446/dyna.v90n225.103587

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…It is also noted that thermal annealing increases the interlayer viscosity of polymers, increasing their performance characteristics in comparison with samples obtained by injection molding 7 . In annealing technologies studies noted that heat treatment of samples from thermoplastics, improving mechanical properties, causes unacceptable deformations, which in the case of a real parts can make them unusable 8,9 . This is due to the fact that in the sample placed in the annealing furnace there are no forces that prevent its expansion when exposed to high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Bulk post-treatment of FDM-printed samples

Potapov,

Malakho,

Gnidina

et al. 2024

Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023)

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For small-scale and single production, FDM printing is considered as a technology competing with the well-known method – injection molding. However, due to the specifics of the printing process associated with layer-by-layer formation printed parts are significantly inferior to parts obtained by injection molding in terms of strength and surface quality, minimizing the advantages of 3D-printing. The methods that make it possible to improve the physical and mechanical characteristics of a printed parts include bulk treatment methods based on thermal effects on the whole part. The aim of this paper is to compare the technologies of bulk thermal post-processing in terms of the effect on the physical and mechanical properties of FDM-printed samples. Three methods of bulk thermal post-treatment are considered: annealing in a dispersed environment, annealing in a dispersed environment with pressure, annealing in a vacuum bag. The properties and deformations of ABS plastic samples printed by the FDM-method are investigated. The research results showed that all the considered technologies of bulk post-treatment of FDM-printed samples can be considered promising to improving physical and mechanical properties. The best results of minimizing deformations after annealing are observed after treatment in a dispersed environment consisting of gypsum powder. The obtained unsatisfactory results of changing the sizes of samples annealing in a vacuum bag may be related to the imperfection of this post-treatment method.

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Section: Introductionmentioning

confidence: 99%

Bulk post-treatment of FDM-printed samples

Potapov,

Malakho,

Gnidina

et al. 2024

Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023)

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Supplementary treatment of FDM printed parts. Review

Potapov,

Volgin,

Malakho

et al. 2024

RUSS CHEM REV

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The application of additive technologies to the manufacture of polymer and composite products is now actively expanding. The FDM printing process is popular because of its ability to adapt to specific tasks and to bring products with complex geometries into production quickly and at minimal cost, and is seen as a technology that can compete with injection molding. However, due to the nature of the process, FDM printed parts are significantly inferior in quality to injection molded parts. Much attention is now being paid to research into supplementary treatment methods to improve the properties of FDM printing parts. However, there is no complete and clear description of such methods, nor are there any recommendations on the choice of treatment methods aimed at improving the specific parts properties. The aim of this review is to analyse the research in the field of post-treatment of parts in order to systematise their advantages and limitations, which will allow a more reasoned choice of a post-treatment method to improve specific properties of FDM printing parts. <br> The bibliography includes 120 references.

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Analysis of the dimensional variation of 3D printed objects (FMD) subjected to annealing postprocessing

Cited by 2 publications

References 9 publications

Bulk post-treatment of FDM-printed samples

Bulk post-treatment of FDM-printed samples

Supplementary treatment of FDM printed parts. Review

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