Publicado

2023-03-03

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

Análisis del cambio dimensional de los objetos impresos en 3D método (FMD) sometidos a postproceso de recocido

Palabras clave:

annealing; postprocessing; dimensional variations (en)
recocido; post proceso; análisis dimensional (es)

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The annealing process in FDM printing applying materials such as PLA and HTPLA, is a technique that looks for the improvement of the mechanical characteristics of post-printing products. The aim of the research is to determine the most suitable annealing process that does not generate significant changes in the dimension of the object. To this end, 108 test pieces were manufactured within the applied methodology, which were exposed to combined tests that considered variables such as the type of printing material, the fill level, temperature and coating. Once the experiment was carried out, it was concluded that the most suitable annealing process is in PLA or HTPLA material at 100% filler, exposed to 200°C with plaster stone coating.

El proceso de recocido en impresiones por FDM con el empleo de materiales como PLA y HTPLA, resulta en una técnica que busca mejorar las características mecánicas post impresión de los productos. El objetivo de la investigación es determinar el proceso de recocido más adecuado que no genere cambios significativos en la dimensión del objeto. Para ello, dentro de la metodología aplicada se fabricaron 108 probetas, las cuales fueron expuestas a pruebas combinadas que consideraron variables como el tipo de material de la impresión, el nivel de relleno, temperatura y revestimiento. Una vez realizado la experimentación, se concluyó que el proceso de recocido más adecuado es en material PLA o HTPLA a 100% de relleno, expuesto a 200°C con recubrimiento de yeso piedra.

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Citas

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