Original scientific paper

Influence of printing conditions on structure in FDM prototypes

Ivan Gajdoš ; Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, Slovak Republic
Ján Slota orcid.org/0000-0002-9054-0902 ; Faculty of Mechanical Engineering, Technical University of Košice, Mäsiarska 74, 040 01 Košice, Slovak Republic

Abstract

The main insufficiency of prototypes made by 3D printing with FDM (Fused Deposition Modelling) method is structure inhomogeneity resulting from the basic principle of this technique. The aim of the paper is to show how the structure of the FDM prototypes, by changing of processing temperature and layout on base plate, is affected. In order to define the processing temperatures influence on building structure of the FDM prototypes, various head and envelope temperatures in printing of specimens were applied. The samples were analysed by computed tomography to determine changes in layers structure, dimensions and the portion of unfilled volume in specimen. Obtained results show that material distribution in the whole volume of scanned specimens is not uniform. It was found out that structure homogeneity represented by the volume of non-filled area is affected by even the shape of fabricated part. This approach can be in the future used as a standard method for quality evaluation.

Keywords

brand FDM; non-destructive analysis; Rapid Prototyping

Hrčak ID:

100157

URI

https://hrcak.srce.hr/100157

Publication date:

15.4.2013.

Article data in other languages: croatian

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