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Título del libro: Raster Analysis And Mechanical Behavior Prediction By Fem Of Fdm Process
Título del capítulo: Surface finish inspection by X-ray Computed Tomography in FDM parts

Autores UNAM:
LEOPOLDO RUIZ HUERTA; ALBERTO CABALLERO RUIZ;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2016

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Palabras clave:

Computerized tomography; Extrusion; Finishing; Manufacture; Melt spinning; Nozzles; Tomography; Vibratory finishing; Fused deposition modeling; Joining materials; Manufacturing methodology; Melt extrusion process; Support materials; Surface finishes; Vibratory machines; X-ray computed tomography; 3D printers

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Resumen:

Additive manufacturing (AM) is defined by ASTM as the process of joining materials to make objects from 3D model data, usually layer upon layer, as opposed to substractive manufacturing methodologies, such as traditional machining [1]. Among additive manufacturing (AM) technologies, material extrusion systems represent one of the largest installed base of AM machines [2]. Fused deposition modeling (FDM) technology is a melt extrusion process where a filament is selectively extruded through a nozzle tip or orifice. In this process there must be, at least, two materials extruded: The building model material (the material of the final component) and the support material, neccesary when parts of the device built is in cantilever [3] [4]. Because the filament is deposited layer by layer, the surface of the parts produced by FDM has ridges. This effect is present on the inclined surface of the parts and is known as the stair stepping effect. Such an effect is shown in Figure 1 [5] . In this work, a study of the impact on the surface of parts produced by FDM of the post process using a vibratory mass finishing vibratory machine is presented. For the surface assesment, the technique of X-ray computed tomography was employed. The FDM part was manufactured with PC (Polycarbonate), a Stratasys Fortus 400 machine with a T16 nozzle tip and PC-S support material was used for the test.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9781887706711
Editorial:
American Society for Precision Engineering, ASPE

Tipo de producto:
Conference Paper