20.500.12556/ReVIS-10847 ANALIZA VPLIVA OKOLJA NA MEHANSKE LASTNOSTI PROTOTIPOV IZ POLIMERNIH MATERIALOV IN KOMPOZITOV THE IMPACT OF THE ENVIRONMENT ON THE MECHANICAL PROPERTIES OF 3D PRINTED PROTOTYPES MADE FROM POLYMER MATERIALS AND COMPOSITES Diplomska naloga preučuje vpliv hladilno-mazalnega sredstva na mehanske lastnosti 3D natisnjenih prototipov iz materialov PLA in PLA, okrepljenega z ogljikovimi vlakni (PLA+CF). V raziskavi so bili analizirani vzorci z različnimi gostotami izpolnitve (20 %, 40 %, 60 %, 80 % in 100 %), pri čemer so bili primerjani vzorci brez izpostavitve in vzorci, izpostavljeni hladilno-mazalnemu sredstvu za obdobje sedmih dni. Merjeni mehanski parametri so vključevali maksimalno silo, natezno napetost, deformacijo in modul elastičnosti. Rezultati kažejo, da izpostavljenost hladilno-mazalnemu sredstvu bistveno vpliva na mehanske lastnosti, pri čemer so vzorci PLA+CF v povprečju ohranili boljšo mehansko odpornost v primerjavi s čistim PLA. Ti rezultati so pomembni za razumevanje obnašanja 3D-natisnjenih materialov v realnih industrijskih pogojih This thesis investigates the impact of a coolant-lubricant on the mechanical properties of 3D-printed prototypes made from PLA and carbon fiber-reinforced PLA (PLA+CF). The study examines samples with varying infill densities (20%, 40%, 60%, 80%, and 100%), comparing those that were unexposed to the coolant-lubricant with those that were exposed to it for a period of 7 days. The mechanical parameters measured include maximum force, tensile stress, strain, and modulus of elasticity. The results indicate that exposure to the coolant-lubricant significantly affects the mechanical properties, with the PLA+CF samples generally retaining superior mechanical resistance compared to pure PLA. These findings are crucial for understanding the behavior of 3D-printed materials under real-world industrial conditions. aditivna proizvodnja FDM hladilno-mazalna sredstva mehanske lastnosti polimeri in kompoziti additive manufacturing FDM cooling lubricants mechanical properties polymers and composite true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-10-02 18:52:32 2024-10-02 18:52:32 2024-10-14 14:09:06 0000-00-00 00:00:00 2024 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 5138 211452675 DIP_Grad_Jakob_2024.pdf DIP_Grad_Jakob_2024.pdf 1 024680F2DBB447A32473DA59463E06DF 113d71a37905a4e0e7b3682738a2dde0f931cfe2061640cd1fe6f7b6f3c4ea9b b865b2f5-80de-11ef-a5bf-001a4af901a5 https://revis.openscience.si/Dokument.php?lang=slv&id=12373 Univerza v Novem mestu - Fakulteta za strojništvo 0 0 0