Mehanske lastnosti preprostih elementov izdelanih s 3D tiskom

diplomska naloga št.: 441/B-GR

Martin Gregorič (Author), Goran Turk (Mentor)

Abstract

3D tiskanje je prihodnost gradbene industrije. A pot do vsakdanje uporabe elementov natisnjenih s 3D tiskom je še dolga, saj za večino materialov za 3D tiskanje ne poznamo mehanskih lastnosti. V sklopu diplomske naloge sem preverjal mehanske lastnosti vzorcev, natisnjenih iz biokompozitnega materiala, ki je vseboval 60 % polimernega materiala in 40 % lesenih vlaken bora. Gre za anizotropni material, čigar lastnosti so v vsaki smeri različne. Zato je potrebno za vsak način polnitve in orientacijo narediti empirični preizkus in analizirati rezultate. Tiskanje je bilo opravljeno na 3D tiskalniku na Fakulteti za gradbeništvo in geodezijo Univerze v Ljubljani. V prvem delu je opisan začetek 3D tiskanja ter sprehod skozi njegovo zgodovino in njegova uporaba do danes. Opisane so tudi različne metode 3D tiskanja, ki jih uporabljamo, njihove prednosti in slabosti. Drugi del govori o 3D tisku v gradbeništvu, predstavim tiskalnik, ki ga imamo na fakulteti, materialih, ki jih uporabljamo, največjih objektih, zgrajenih s 3D tiskom in načinom kako pridemo od ideje do izdelka. V tretjem delu predstavim načrt tiskanja: kateri material smo izbrali, katere dimenzije smo izbrali in kako smo določili gostote ter vrste polnitve. Opišem tudi proces oblikovanja in pripravljanja vzorcev na 3D tiskanje. Četrti del prinaša opis izvedbe upogibnega preizkusa v laboratoriju na Fakulteti za gradbeništvo in geodezijo Univerze v Ljubljani, peti del pa analizo preizkusa.

Keywords

gradbeništvo;diplomske naloge;UNI;GR;B-GR;3D tiskanje;borov les;mehanske lastnosti;upogibni preizkus;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[M. Gregorič]
UDC:	531/534:004.356.2-023.5(043.2)
COBISS:	165197059
Views:	150
Downloads:	21
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Mechanical properties of simple elements produced by 3D printing.
Secondary abstract:	3D printing represents the future of the construction industry. However, the journey towards the everyday utilization of 3D-printed components is still extensive, primarily due to the lack of knowledge about mechanical properties for the majority of materials used in 3D printing. Within the scope of my thesis, I examined the mechanical properties of samples printed from a biocomposite material comprising 60 % polymer and 40 % pine wood fibres. This material is an anisotropic substance, exhibiting distinct properties in different directions. Therefore, an empirical testing and results analysis is necessary for each filling and orientation method. Printing was carried out on a 3D printer at the Faculty of Civil Engineering and Geodesy at the University of Ljubljana. The initial section describes the inception of 3D printing, offering an overview of its historical evolution and its contemporary applications. Various 3D printing methods are outlined, highlighting their respective advantages and limitations. The subsequent section delves into 3D printing in the realm of civil engineering. I introduce the printer at the faculty, the materials employed, significant structures constructed via 3D printing, and the process bridging the gap from concept to final product. In the third section, I present the print plan, the chosen materials, dimensions, density determinations, and types of fillings. Additionally, I expound upon the design and preparation process for the specimens intended for 3D printing.The fourth segment provides a description of the execution of a bending test within the laboratory of the Faculty of Civil Engineering and Geodesy at the University of Ljubljana. The fifth section involves the analysis of the test results.
Secondary keywords:	graduation thesis;civil engineering;3D printing;pine wood;anisotropy;unknown properties;flexural test;
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	XVIII, 49 str.
ID:	22078999