20.500.12556/DKUM-67883 Izdelava plastomagnetov s slojevitimi dodajalnimi tehnologijami Production of polymer bonded magnets with additive manufacturing Z uvedbo nove tehnologije trirazsežnega tiskanja plastomagnetov želimo zadostiti kriteriju po nižanju stroškov izdelave manjših serij in ob tem ohraniti dobre magnetne in mehanske lastnosti, ki jih dosežemo z injekcijskim brizganjem. V diplomskem delu sta bili iz magnetnega prahu NdFeB in polimernega veziva PA12 s postopkom neprekinjenega ciljnega nalaganja (FDM) izdelali dve seriji tiskanih plastomagnetov z različno debelino tiskanega sloja. Z raziskavami smo želeli ugotoviti, s katero debelino se najbolj približamo lastnostim injekcijsko brizganega plastomagneta. Pri tem smo uporabili splošno znane metode priprave vzorcev, merjenja in izračuna gostote, analize mikrostrukture ter ugotavljanja mehanskih in magnetnih lastnosti. Raziskava je pokazala, da se željenemu cilju približujemo z zmanjšanjem debeline tiskanega sloja. Potrdili smo tezo, da lahko z novo tehnologijo izdelave plastomagnetov dosežemo zadovoljive lastnosti za industrijske potrebe. Rezultati tega dela predstavljajo spodbudo za nadaljnje raziskave na področju razvoja tehnologije 3D tiskanja plastomagnetov. The introduction of 3D printing as a new technology for the production of polymer bonded magnets is aimed at lowering costs of a small scale production while preserving good magnetic and mechanical properties, such as those obtainable by injection moulding. Two series of polymer bonded magnets, based on NdFeB magnetic powder and polyamide PA 12 as binder and with different thickness of printed layer, have been produced for the purpose of this graduation thesis using the method of Fused Deposition Modelling (FDM). The purpose of the research was to identify the optimum thickness of the printed layer, which would give printed polymer bonded magnets characteristics similar to those produced by injection moulding. Well-known methods of sample preparation, density measurement and calculation, microstructure analysis, and mechanical and magnetic properties determination have been used. The research has shown that the target properties of polymer bonded magnets are obtainable with the reduction of thickness of the printed layer. The hypothesis that the new production method FDM enables the manufacturing of polymer bonded magnets with the properties appropriate for industrial needs has also been confirmed. The results of this thesis encourage further investigation into the development of the technology of 3D printing of polymer bonded magnets. plastomagneti 3D tiskanje zlitina NdFeB mikrostruktura polymer bonded magnets 3D printing NdFeB alloy microstructure true true false [M. Anžel] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2017-09-01 11:56:16 2017-09-28 12:17:38 2022-08-01 14:34:14 2019-07-11 16:34:22 2017 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 004.9:621.7.04(043.2) 21103126 URN:SI:UM:DK:WJG0C2DC UN_Anzel_Masa_2017.pdf UN_Anzel_Masa_2017.pdf 1 D0794D9B84B105D6907635C8C5A67D11 4dd7fefe0559eeb754264b0f670ce4a63e5a0885b5923cbace2d225dca1bd36f 6174b78a-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/8559639c-cea1-4eab-b4f0-8f6b81d53138 https://dk.um.si/Dokument.php?lang=slv&id=119105 Fakulteta za strojništvo 0 0 0