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V magistrski nalogi smo analizirali raztros statičnih materialnih lastnosti pri konstruiranju izdelka izdelanega s stereolitografijo. Stereolitografija je oblika 3D-tehnologije, ki je uporabljena za ustvarjanje modelov s fotokemičnimi metodami. Material, ki se uporablja za stereolitografijsko tiskanje, je umetna smola, ki je termo reaktivni polimer. Na trgu je široka izbira smol, ki se razlikujejo po mehanskih lastnostih. Izbrali smo smolo Anycubic UV Tough Resin. Preverjali smo glavne vplive izdelovalnih parametrov na mehanske lastnosti izdelkov. Za izdelke smo preverjali raztros statičnih materialnih lastnosti s pomočjo metode analize variance. Opravili smo tri ponovitve preizkusov za vsako kombinacijo vplivov. Preverjali smo vpliv časa izpostavljenosti svetlobi, moči UV-svetlobe in vpliv kota tiskanja izdelka. Preizkušance smo natezno obremenjevali na preizkuševališču, ki omogoča obremenitev 25 kN. Iz rezultatov smo preverili natezno trdnost in elastični modul izdelka. In the master's thesis, a scatter of static material properties was analysed for the purpose of product design with stereolithography. Stereolithography is a form of additive manufacturing technology that is used to create models with photochemical methods. The liquid material used for stereolithographic printing is artificial resin, which is a thermosetting polymer. There is a wide selection of resins on the market that vary according to mechanical properties. We chose Anycubic UV Tough Resin. The main influence of manufacturing parameters on the mechanical properties of products was examined. The scatter of static material properties for the parts was analysed using the method of analysis of variance. Three repetitions of experiments were carried out for each combination of effects. The effect of light exposure time, power of UV light and the effect of printing angles was verified. The test products have undergone tensile testing at the test site, which allows a load application of 25 kN. From the results the tensile strength and the elastic modulus of the test product were determined. |
