20.500.12556/ReVIS-14147 PREVERJANJE REVERZIBILNOSTI MODELA NA OSNOVI TAGUCHIJEVE METODE GLEDE NA DEJANSKE MERITVE NATEZNIH PREIZKUŠANCEV VERIFICATION OF MODEL REVERSIBILITY BASED ON THE TAGUCHI METHOD WITH RESPECT TO ACTUAL TENSILE SPECIMEN MEASUREMENTS V diplomski nalogi je obravnavana optimizacija mehanskih lastnosti FDM-natisnjenih izdelkov z uporabo Taguchijeve metode načrtovanja eksperimentov. V teoretičnem delu so predstavljeni tehnologija FDM, vpliv procesnih parametrov na mehanske lastnosti polimernih izdelkov ter osnove Taguchijeve metode, razmerja signal–šum, analize variance in večodzivne optimizacije. V raziskovalnem delu je najprej didaktično prikazana uporaba ortogonalne matrike L9(34) za analizo vpliva štirih procesnih dejavnikov. Nato je robustni pristop uporabljen na realnem naboru PLA podatkov, kjer je stopnja zapolnjenosti obravnavana kot kontrolni faktor, čas izpostavitve pa kot šumni faktor. Obravnavane so natezna, upogibna in tlačna trdnost. Rezultati so analizirani z razmerjem signal–šum, analizo variance in metodo Grey Relational Analysis. Ugotovljeno je, da ima stopnja zapolnjenosti največji vpliv na mehanske lastnosti, najbolj robustna večodzivna rešitev pa je dosežena pri 100 % zapolnjenosti. Zapolnjenost 80 % predstavlja možno kompromisno rešitev, kadar sta pomembna manjša poraba materiala in krajši čas izdelave. Naloga pokaže, da je Taguchijeva metoda uporabno orodje za pregledno in eksperimentalno ekonomično optimizacijo FDM procesa. This thesis deals with the optimization of the mechanical properties of FDM-printed products using Taguchi's design of experiments method. The theoretical part presents the FDM process, the influence of process parameters on the mechanical properties of polymer parts, and the basic principles of the Taguchi method, signal-to-noise ratio, analysis of variance and multi-response optimization. In the research part, the use of the L9(3⁴) orthogonal array is first demonstrated through a didactic example in order to explain the basic procedure of the Taguchi method. The robust approach is then applied to a real PLA data set, where infill density is treated as a control factor and exposure time as a noise factor. Tensile, flexural and compressive strength are analysed. The results are evaluated using the signal-to-noise ratio, analysis of variance and Grey Relational Analysis. The results show that infill density has the greatest influence on the mechanical properties, while the most robust multi-response solution is obtained at 100 % infill density. An infill density of 80 % represents a possible compromise when lower material consumption and shorter printing time are important. The thesis shows that the Taguchi method is a useful tool for transparent and experimentally efficient optimization of the FDM process. Aditivna proizvodnja ANOVA FDM mehanske lastnosti ortogonalne matrike PLA signal – šum Taguchijeva metoda Additive manufacturing ANOVA FDM mechanical properties orthogonal arrays PLA signal-to-noise ratio Taguchi method true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-07-02 16:50:36 2026-07-02 16:50:37 2026-07-03 03:12:30 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 6096 1262$$dip_sisko_peperko_lan_2026.pdf 1262$$dip_sisko_peperko_lan_2026.pdf 1 A9B4947675D31B671267613BE699FCF8 3176ce94e181d6553e061ad91da87f958d408c28699e19c64f62e1dd2f4cb190 63e072a8-7625-11f1-a560-001a4af901a5 https://revis.openscience.si/Dokument.php?lang=slv&id=17152 Univerza v Novem mestu - Fakulteta za strojništvo 0 0 0