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Vpliv hitrosti tiskanja v tehnologiji ciljnega nanašanja slojev na upogibno trdnost polilaktične kisline
Matos, Matej (Author), Slemenik Perše, Lidija (Mentor) More about this mentor... This link opens in a new window

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Abstract
Pri izdelavi izdelka s 3D tiskanjem lahko nastavimo številne parametre, ki vplivajo na izgled in lastnosti izdelka. Eden izmed nastavljivih parametrov, je hitrost tiskanja. S spremembo hitrosti tiskanja se spremeni tudi viskoznost materiala, ki ga ekstrudiramo in s tem lastnosti izdelka. V zaključni nalogi smo iskali hitrostno območje v katerem so izdelki narejeni s tehnologijo 3D tiskanja najkvalitetnejši. V teoretičnem delu smo si pogledali kako deluje 3D tiskalnik po metodi ciljnega nanašanja plasti, kako vplivata temperatura in hitrost tiskanja na viskoznost ter princip delovanja tritočkovnega upogibnega testa. S 3D tiskalnikom smo izdelali vzorce pri različnih hitrostih tiskanja, ki smo jih preizkušali s pomočjo tritočkovnega upogibnega testa. Na koncu smo vzorce vrednotili na podlagi vizualnega izgleda in odstopanj dimenzij ter na podlagi mehanskih lastnosti pridobljenih iz upogibnega testa.

Language:Slovenian
Keywords:3D tiskanje, hitrost tiskanja, viskoznost, polilaktična kislina, tritočkovni upogibni test, ciljno nanašanje slojev
Work type:Final paper (mb12)
Tipology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2020
Publisher:[M. Matos]
Number of pages:XIV, 26 f.
UDC:621.9.04:532.13:620.174(043.2)
COBISS.SI-ID:32868611 Link is opened in a new window
Views:105
Downloads:40
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Secondary language

Language:English
Title:Influence of the printing speed in fused filament fabrication tehnology on flexural strength of polylactic acid
Abstract:
When creating a product with 3D printing, we can set a number of parameters that affect the appearence and properties of the product. One of the adjustable parameters is the printing speed. By changing the printing speed, the viscosity of the material to be extruded also changes, and thus the properties of the product can change. In the final task of this thesis, we studied for the speed range, in which the products, made with 3D printing technology, would have the highest quality. In theoretical part of the thesis, we studied at how a 3D printer works according to the method of fused filament fabrication, how temperature and print speed affect the viscosity and the principles of operation of a three-point bending test. Using a 3D printer, we produced several samples at different printing speeds, which have been tested with a three-point bending test. Finally, the samples were evaluated on the basis of visual appearance and dimensional deviations, and on the basis of mechanical properties obtained from the bending test.

Keywords:3D printing, printing speed, viscosity, polylactic acid, three-point bending test, fused filament fabrication

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