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Título del libro: Proceedings - Aspe 2015 Spring Topical Meeting: Achieving Precision Tolerances In Additive Manufacturing
Título del capítulo: Model - Support material interaction inspection by X-ray computed tomography in FDM additive manufacturing process

Autores UNAM:
LEOPOLDO RUIZ HUERTA; ALBERTO CABALLERO RUIZ; LETICIA VEGA ALVARADO;
Autores externos:

Idioma:
Inglés
Año de publicación:
2015
Palabras clave:

Computerized tomography; Extrusion; Manufacture; Nozzles; Surface defects; Additive Manufacturing; Additive manufacturing process; Automated fabrication; Extrusion process; Fused deposition modeling; Manufacturing defects; Support materials; X-ray computed tomography; 3D printers


Resumen:

Additive Manufacturing (AM) is a layer-based automated fabrication process for making 3-dimensional physical objects directly from 3DCAD data without using part-depending tools. Material extrusion systems represent the largest installed base of AM machines. Fused Deposition Modeling (FDM) is a material extrusion process in which model material is selectively dispensed through a nozzle tip or orifice. According to the geometry, manufacturing orientation, material and building strategy, the devices produced by FDM technology would require a second nozzle tip that extrudes another thermoplastic support material to allow the upper model material to be located [1,2]. The authors, studied the surface and inner structure of parts produced by AM FDM technology and detected possible material or manufacturing defects as a consecuense of model and support material interaction by means of an X-ray CT system. The studied material was polycabonate (PC). The machine used for the test was a Stratasys Fortus 400 with T16 nozzle tip and PC-S support material.


Entidades citadas de la UNAM: