20.500.12556/RUL-172017 Injekcijsko brizganje vzorcev za študijo mehanskega spoja med 3D natisnjenimi mrežnimi strukturami in polimerom Injection moulding of specimens for the study of the mechanical bond between 3D-printed lattice structures and polymer Medsebojno prepletanje dveh materialov, kjer ima eden površinsko mrežno strukturo, drugi pa je brizgan polimer, omogoča mehansko vez brez potrebe po dodatnih lepilih. Takšna metoda povezovanja se uporablja v industrijah, kjer je zahtevana visoka trdnost in zanesljivost spoja. Uporaba mrežnih struktur za mehansko sidranje polimerov med brizganjem predstavlja inovativno rešitev za izboljšano adhezijo v avtomobilski, letalski in medicinski industriji. V zaključnem delu je prikazana priprava tehnologije injekcijskega brizganja za izdelavo vzorcev za študijo mehanskega spoja med 3D natisnjenimi mrežnimi strukturami, narejenimi z aditivno tehnologijo fotopolimerizacije v kadi, in polimerom. Zasnovan in izdelan je bil orodni vložek združljiv z obstoječim gnezdom dvodelnega orodja. Izvedena je bila numerična simulacija brizganja gravure z mrežno strukturo s simulacijskim orodjem Moldflow Advisor. Rezultati simulacije so služili kot izhodišče za nastavitev procesnih parametrov injekcijskega brizganja na stroju Babyplast 6/10P. Ustrezni parametri brizganja so bili pridobljeni z eksperimenti brizganja, kjer smo vizualno preverili zapolnjenost gravure med mrežnimi strukturami. Vstavki s površinsko mrežno strukturo so bili izdelani s tehnologijo 3D tiskanja po principu fotopolimerizacije v kadi. Mrežne strukture so bile tipa BCCZ z različnimi debelinami paličja. Trdnost mehanskih spojev smo preverili z nateznim preizkusom. Končni rezultati potrjujejo, da izbrana kombinacija geometrije in procesnih parametrov omogoča kakovostno zapolnitev gravure ter mehansko zanesljivost spoja. The interlocking of two materials, where one features a surface lattice structure and the other is an injection-molded polymer, enables the formation of a mechanical bond without the need for additional adhesives. Such a joining method is applied in industries where high strength and bond reliability are required. The use of lattice structures as mechanical anchors for polymers during injection molding represents an innovative solution for improved adhesion in the automotive, aerospace, and medical industries. In this work, the preparation of the injection molding technology for the production of interlocked specimens was presented, focusing on the study of the mechanical bond between 3D-printed lattice structures, fabricated using vat photopolymerization, and polymer. A mold insert compatible with the existing two-part moulding tool was designed and manufactured. A numerical simulation of the molding process of the cavity with the lattice structure was carried out using the Moldflow Advisor simulation software. The simulation results served as a basis for setting the injection molding process parameters on the Babyplast 6/10P machine. The appropriate molding parameters were determined experimentally. The quality of cavity filling around the lattice structures was evaluated visually. The inserts with surface lattice geometries were produced using 3D printing based on the vat photopolymerization principle. The lattice structures were of the BCCZ type with different strut diameters. The strength of the mechanical bonds was evaluated through tensile testing. The final results confirmed that the selected combination of geometry and process parameters enabled reliable cavity filling and ensured the mechanical integrity of the bond. injekcijsko brizganje 3D tiskanje polimeri mrežne strukture gnezdno orodje optimizacija parametrov numerična simulacija fotopolimerizacija injection moulding 3D printing polymers lattice structures modular mould process parameter optimization numerical simulation photopolymerization true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-05 08:31:14 2025-09-05 08:31:17 2025-10-01 03:44:49 0000-00-00 00:00:00 2025 0 0 XII, 37 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 678.027.74:621.792.052:004.942(043.2) 275500 248367875 43334.pdf 43334.pdf 1 7E5A6F06BD3599C8E8A6C861BB4D426A f8ad8c3debbd50c79a35b37a0c6aa5eb75507f91ef3f94b9fad23fc8f0eb14a4 c7342686-8a21-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215735 Fakulteta za strojništvo 0 0 0