Utjecaj uvjeta tiskanja na strukturu FDM prototipova

Autor: Gajdos, Ivan, Jan Slota
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Tehnički vjesnik
Volume 20
Issue 2
Publons
ISSN: 1848-6339
1330-3651
Popis: Osnovni nedostatak prototipova nastalih 3D tiskanjem metodom taloženja (FDM) je nehomogenost strukture koja proizlazi iz osnovnog principa te tehnike. Cilj je ovoga rada pokazati kako promjena radne temperature i rasporeda na osnovnoj ploči utječe na strukturu FDM prototipova. Kako bi se odredio utjecaj obradne temperature na strukturu nastajanja FDM prototipova, primijenjene su različite temperature glave i omotača kod tiskanja uzoraka. Uzorci su analizirani kompjuterskom tomografijom da bi se odredile promjene u strukturi slojeva, dimenzijama i dijelu nepopunjenog volumena u njima. Dobiveni rezultati pokazuju da raspodjela materijala u cjelokupnom volumenu skeniranih uzoraka nije ravnomjerna. Ustanovljeno je da na homogenost strukture koju predstavlja obujam neispunjenog područja, djeluje čak i oblik izrađenog dijela. U budućnosti se ovaj pristup može koristiti kao standardna metoda za procjenu kvalitete.
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.
Databáze: OpenAIRE
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