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Optimización de la adhesión interfacial y el rendimiento mecánico de las juntas multimateriales fabricadas por
Jakub Zatloukal1, Mathieu Viry2, Aleš Mizera3
1Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic.
Materials (Basel, Switzerland)
|August 28, 2025
Resumen
Este estudio mejora la impresión 3D multimaterial optimizando la adhesión entre capas entre polímeros como el policarbonato (PC) y el polietileno tereftalato glicol (PETG). Las estrategias específicas de unión casi duplicaron la resistencia de las articulaciones, mejorando la fiabilidad mecánica de las piezas impresas en 3D.
Área de la Ciencia:
- Fabricación aditiva
- Ciencias de los materiales
- Ingeniería de Polímeros
Sus antecedentes:
- La impresión 3D de múltiples materiales permite piezas funcionales complejas para la industria automotriz, aeroespacial e ingeniería.
- La adhesión entre capas entre polímeros diferentes es un desafío crítico que afecta la fiabilidad mecánica.
- Los polímeros comúnmente utilizados incluyen policarbonato (PC), acrilonitrilo estireno acrilato (ASA), ácido poliláctico (PLA) y polietileno tereftalato glicol (PETG).
Objetivo del estudio:
- Investigar las propiedades de adhesión de PC, ASA, PLA y PETG en la impresión 3D de múltiples materiales.
- Mejorar el rendimiento mecánico de las uniones estructurales a través de técnicas optimizadas de unión entre capas.
- Proporcionar enfoques prácticos para mejorar la durabilidad y funcionalidad de las estructuras impresas en 3D.
Principales métodos:
- Se utilizó el método de fabricación aditiva por extrusión de materiales (MEX).
- Pruebas de tracción empleadas para evaluar la resistencia mecánica de las capas de material co-depositadas y unidas.
- Investigó los efectos de las combinaciones de materiales, el área de contacto interfacial y la presión de unión entre capas.
Principales resultados:
- Las combinaciones específicas de materiales y diseños de juntas mejoran significativamente la resistencia a la tracción.
- El aumento del área de contacto interfacial y la aplicación de presión de unión entre capas mejoraron el rendimiento de la articulación.
- La resistencia conjunta compuesta de policarbonato/tereftalato de polietileno (PC/PETG) aumentó de 15,2 MPa a 29,9 MPa con la unión entre capas, casi duplicando la fuerza de unión.
Conclusiones:
- Las estrategias optimizadas de unión entre capas son efectivas para mejorar la confiabilidad mecánica de las uniones impresas en 3D de múltiples materiales.
- Los hallazgos ofrecen ideas prácticas para el avance de la fabricación aditiva multimaterial.
- Esta investigación apoya el desarrollo de componentes impresos en 3D de alto rendimiento para aplicaciones exigentes.
Palabras clave:
Enlace entre capasextrusión de materiales (MEX)Propiedades mecánicasImpresión 3D con varios materialesMás Videos Relacionados
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