Considerations on 3D printing joints parts

One of the unique capabilities of additive manufacturing over classical manufacturing methods is the possibility to create interlocking parts without the need of assembly. This is useful for the creation of rotational and translational joints in demonstrative or functional 3D models. This paper focu...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-08, Vol.400 (2), p.22061
Main Authors: Zapciu, A, Tasca, G D, Amza, C G
Format: Article
Language:English
Subjects:
3-D printers
Additive manufacturing
Extrusion
Process parameters
Production methods
Rotating spheres
Surface finish
Three dimensional models
Three dimensional printing
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Summary:One of the unique capabilities of additive manufacturing over classical manufacturing methods is the possibility to create interlocking parts without the need of assembly. This is useful for the creation of rotational and translational joints in demonstrative or functional 3D models. This paper focuses on analyzing the process parameters which need to be considered when fabricating parts with cylindrical or spherical rotating joints using material extrusion 3D printing. Several aspects are analyzed, such as joint tolerance and clearance, surface finish requirements, surface shape and dimensions or surface precision and trueness as they result from the converting ideal CAD files to the common file formats used in additive manufacturing. The paper also searches to identify the extent to which it is possible to dynamically change process parameters such as layer height and width or depositing speed in order to improve the characteristics of the inner and outer surfaces of the joints, without influencing other areas of the fabricated parts.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/400/2/022061