@CONFERENCE{MTMT:34833141,
	title = {Spirálszerű szerszámpályák tervezése nagyoló maráshoz Lamé görbék alkalmazásával. Spiral tool path generation for rough milling using Lamé curves},
	url = {https://m2.mtmt.hu/api/publication/34833141},
	author = {Tancsa, Viktor and Jacsó, Ádám and Póka, György},
	booktitle = {OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia},
	unique-id = {34833141},
	abstract = {A nagysebességű megmunkálási technológiák szigorú követelményeket támasztanak a szerszámpályákat létrehozó algoritmusok felé. A pálya görbületének és a kontaktszög folytonosságának optimálása a minél egyenletesebb szerszámterhelés elérése érdekében általában összetett feladat. Az évek során erre számtalan megoldást fejlesztettek a matematika és a geometria legkülönbözőbb módszereinek felhasználásával. Ebben a cikkben egy olyan eljárás kerül bemutatásra, mely a Lamé görbék spirállá alakításával egy kompakt egyenlet formájában nyújt hatékony megoldást a pályagenerálásnál felmerülő problémákra.
		
		High-speed machining technologies impose strict requirements on tool path generation algorithms. Optimizing tool path curvature and cutter engagement continuity to achieve a uniform tool load is usually complex. Over the past years, countless approaches have been developed to solve this task using various mathematical and geometrical methods. This paper introduces a new technique that converts Lamé curves into spirals, providing an efficient solution in a simplified equation format to the challenges arising in tool path generation.},
	year = {2024},
	pages = {425-428},
	orcid-numbers = {Jacsó, Ádám/0000-0001-8247-2332; Póka, György/0000-0002-7585-986X}
}

@CONFERENCE{MTMT:34833105,
	title = {A dinamikus marási szerszámpályák hatékonyságának növelése az összekötő mozgások optimalizálásával. Increasing the efficiency of dynamic milling tool paths by optimizing the linking movements},
	url = {https://m2.mtmt.hu/api/publication/34833105},
	author = {Jacsó, Ádám and Tancsa, Viktor and Tóth-Molnár, Gellért},
	booktitle = {OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia},
	unique-id = {34833105},
	abstract = {Az elmúlt két évtizedben a nagyoló forgácsolási műveletek látványos fejlődésen mentek keresztül a dinamikus marási stratégiák megjelenésének köszönhetően. A korszerű CAM rendszerek összetett geometriai számítások révén képesek olyan szerszámpályákat létrehozni, amelyek biztosítják a dinamikus marásnál létfontosságú egyenletes szerszámterhelést és folytonos pályagörbületet, ugyanakkor az összekötő mozgások optimalizálására nem fektetnek kellő hangsúlyt. A cikkben egy olyan algoritmus kerül bemutatásra, amely ezen mellékmozgások finomításával lehetővé teszi a megmunkálási idő jelentős csökkenését a szerszám éltartamának megőrzése mellett.
		
		Over the past two decades, rough milling operations have been developing remarkably, thanks to the emergence of dynamic milling strategies. Through complex geometric calculations, modern CAM systems can create tool paths that ensure uniform tool load and continuous path curvature, which are essential in dynamic milling, but at the same time, they do not emphasise optimising the linking movements. The paper presents a method that can significantly reduce machining time by refining linking movements while preserving tool life.},
	year = {2024},
	pages = {165-168},
	orcid-numbers = {Jacsó, Ádám/0000-0001-8247-2332}
}

@CONFERENCE{MTMT:34832838,
	title = {Szénszállal erősített polimer (CFRP) kompozitok többtengelyes élmarási technológiájának vizsgálata forgácsolásindukált sorja és felületi érdesség szempontjából},
	url = {https://m2.mtmt.hu/api/publication/34832838},
	author = {Tima, Tamás Sándor and Geier, Norbert},
	booktitle = {OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia},
	unique-id = {34832838},
	year = {2024},
	pages = {429-434},
	orcid-numbers = {Geier, Norbert/0000-0001-7937-7246}
}

@{MTMT:34830308,
	title = {Initial Results of the Hungarian Pilot Test With an Information Communication Technology Based Assistive Technology Service Supporting Older Adults’ Independent Living},
	url = {https://m2.mtmt.hu/api/publication/34830308},
	author = {Tónay, Gabriella and Tóth, Babett and Tóth, András and Pilissy, Tamás and Fazekas, Gábor},
	booktitle = {24th European Congress of Physical and Rehabilitation Medicine - ESPRM and 9th Congress of Slovenian Society for Physical and Rehabilitation Medicine},
	unique-id = {34830308},
	year = {2024},
	pages = {684-685},
	orcid-numbers = {Tónay, Gabriella/0000-0003-1798-3800; Tóth, András/0000-0002-0129-5467; Pilissy, Tamás/0000-0003-2908-4300; Fazekas, Gábor/0000-0003-3612-8826}
}

@CONFERENCE{MTMT:34829896,
	title = {Térhálós epoxy gyanta forgácsolhatósági vizsgálata hosszesztergálási kísérletekkel},
	url = {https://m2.mtmt.hu/api/publication/34829896},
	author = {Geier, Norbert and Seprős, Szilárd and Poór, Dániel István},
	booktitle = {OGÉT 2024 - XXXII. Nemzetközi Gépészeti Konferencia},
	unique-id = {34829896},
	abstract = {A térhálós polimereket előszeretettel alkalmazzák a nagyszilárdságú szálerősített polimer (FRP) kompozit szerkezetek mátrixanyagaként. Ezen FRP kompozitok forgácsolása sokszor szükséges, azonban forgácsolástechnológiai tervezésük bonyolult. Az FRP kompozitok forgácsolástechnológiai tervezésének támogatása érdekében ebben a kutatásban térhálós epoxy gyanta forgácsolhatóságát vizsgáltuk hosszesztergálási kísérletekkel. Az előtolást, a forgácsolási sebességet és a fogásmélységet variáltuk kétszintes teljes faktoriális kísérletterv alapján. A forgácsolási erőt egy KISTLER 9263A háromkomponenses erőmérővel mértük. A forgácsolt felület minőségét egy Mitutoyo SJ400 típusú kontakt profilométerrel vizsgáltuk. A fő- és kereszthatások szignifikanciáját varianciaanalízissel (ANOVA) értékeltük ki. Az ANOVA eredmények alapján mindhárom vizsgált faktornak szignifikáns hatása van a forgácsolási erőre és a felület minőségére is, így ezen faktorok körültekintő megválasztása kardinális fontosságú.},
	year = {2024},
	pages = {136-140},
	orcid-numbers = {Geier, Norbert/0000-0001-7937-7246; Poór, Dániel István/0000-0002-8036-7966}
}

@article{MTMT:34822031,
	title = {Analysis of the friction performance of deep-drawing steel sheets using network models},
	url = {https://m2.mtmt.hu/api/publication/34822031},
	author = {Najm, Sherwan Mohammed and Trzepieciński, T. and Ibrahim, O.M. and Szwajka, K. and Szewczyk, M.},
	doi = {10.1007/s00170-024-13565-0},
	journal-iso = {INT J ADV MANUFACT TECHNOL},
	journal = {INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY},
	unique-id = {34822031},
	issn = {0268-3768},
	abstract = {This article presents the results of pilot studies on the lubrication of the blankholder zone in sheet metal forming using a pressurised lubricant. The authors invented a method and built a special tribometer for pressure-assisted lubrication. This approach reduces friction in sheet metal forming processes compared to conventional lubrication. Moreover, the artificial neural network approach combined with a force-directed Fruchterman-Reingold graph algorithm and Spearman’s correlation was used for the first time to analyse the relationships between the friction process parameters and the output parameters (the coefficient of friction and the resulting surface roughness of the sheet metal). The experimental tests were conducted utilising strip drawing on four grades of steel sheets known to be outstanding for deep-drawing quality. Different oils, oil pressures and contact pressures were used. Artificial neural network models were used for the first time to determine these relationships in a strip drawing test where every parameter is represented by one node, and all nodes are connected by edges with each other. R Software version 4.2.3 was used to construct the network using the ‘qgraph’ and ‘networktools’ packages. It was found that friction conditions had a highly significant negative correlation with coefficient of friction (COF) and a moderately significant negative correlation with the final surface roughness. However, the initial surface roughness of the as-received sheets had a negative correlation with the COF and a positive one with the resulting surface roughness of the sheet metal. The parameters most related to the COF are the strength coefficient, the ultimate tensile strength and the friction conditions (dry friction or pressurised lubrication). Spearman’s correlation coefficients showed a strong correlation between the kinematic viscosity and the friction conditions. © The Author(s) 2024.},
	keywords = {NEURAL NETWORKS; Friction; sheet metal forming; sheet metal forming; tensile strength; Surface roughness; Steel sheet; lubrication; Tribology; Tribology; Tensile testing; Directed graphs; Coefficient of frictions; Automotive industry; Tribometers; Pilot studies; Negative correlation; Deep drawing; Friction conditions; STEEL SHEETS; Network models; coefficient of friction; Friction performance; Lubrication /; Deep drawing steel},
	year = {2024},
	eissn = {1433-3015},
	orcid-numbers = {Najm, Sherwan Mohammed/0000-0003-3412-0716}
}

@article{MTMT:34822025,
	title = {Comparative study of flame retardancy in polyimine vitrimers and composites: Evaluating additive and reactive flame retardants acting via gas-, solid-, and combined-phase mechanisms},
	url = {https://m2.mtmt.hu/api/publication/34822025},
	author = {Toldy, Andrea and Poór, Dániel István and Szolnoki, Beáta and Devecser, Boglárka and Geier, Norbert and Pomázi, Ákos},
	doi = {10.1016/j.jmst.2024.01.047},
	journal-iso = {J MATER SCI TECHNOL},
	journal = {JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY},
	volume = {196},
	unique-id = {34822025},
	issn = {1005-0302},
	abstract = {We developed flame retarded polyimine type vitrimers and carbon fibre reinforced composites using two additive and a reactive flame retardant containing phosphorus: ammonium polyphosphate (APP), resorcinol bis(diphenyl phosphate) (RDP); and N,N',N’’-tris(2-aminoethyl)-phosphoric acid triamide (TEDAP). We characterised the vitrimer matrix materials by differential scanning calorimetry (DSC), thermal analysis (TGA), limiting oxygen index (LOI), UL-94 test and mass loss calorimetry (MLC), while the vitrimer composites by LOI, UL-94 test, MLC and dynamic mechanical analysis (DMA). We compared the performance of the vitrimer systems to a benchmark pentaerythritol-based aliphatic epoxy resin system (PER). The vitrimer reference had higher thermal stability but lower fire performance than the PER aliphatic reference epoxy. At lower phosphorus content, the vitrimer systems exhibited a melting above their vitrimer transition temperature, which negatively affected their LOI and UL-94 results. From 2% phosphorus content, rapid charring and extinguishing of vitrimers prevented the softening and deforming. The superior performance of these same flame retardants in vitrimer systems could be attributed to the high nitrogen content of imine-based vitrimers in combination with phosphorus flame retardants, exploiting nitrogen-phosphorus synergism. In both matrices, flame retardants with solid phase action lead to better fire performance, while in composites, the lowest peak heat release rates (152 kW/m2 in vitrimer composite) were achieved with RDP acting predominantly in the gas phase, as carbon fibres hindered the intumescent phenomenon. © 2024},
	keywords = {PERFORMANCE; Nitrogen; differential scanning calorimetry; ADDITIVES; flame retardancy; carbon fibers; Thermoanalysis; calorimeters; Epoxy Resins; EPOXY; EPOXY; Benchmarking; Mass loss; fiber reinforced plastics; Flame retardants; Polymer composite; Polymer composite; Carbon fibre; fire performance; Limiting Oxygen Index; Flame-retardancy; Reactive flame retardants; vitrimer; vitrimer; Polyimines; polyimine},
	year = {2024},
	eissn = {1941-1162},
	pages = {101-111},
	orcid-numbers = {Toldy, Andrea/0000-0003-3569-1828; Poór, Dániel István/0000-0002-8036-7966; Szolnoki, Beáta/0000-0001-7214-9734; Geier, Norbert/0000-0001-7937-7246; Pomázi, Ákos/0000-0003-2969-8679}
}

@article{MTMT:34766482,
	title = {Feed optimization based on force modelling and TLBO algorithm in milling Al 7075},
	url = {https://m2.mtmt.hu/api/publication/34766482},
	author = {Elly, Ogutu Isaya and Yin, Yang},
	doi = {10.1007/s40430-024-04839-5},
	journal-iso = {J BRAZ SOC MECH SCI},
	journal = {JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING},
	volume = {46},
	unique-id = {34766482},
	issn = {1678-5878},
	year = {2024},
	eissn = {1806-3691},
	orcid-numbers = {Elly, Ogutu Isaya/0009-0000-9857-1431}
}

@article{MTMT:34657361,
	title = {Current Trends in Metallic Materials for Body Panels and Structural Members Used in the Automotive Industry},
	url = {https://m2.mtmt.hu/api/publication/34657361},
	author = {Trzepiecinski, Tomasz and Najm, Sherwan Mohammed},
	doi = {10.3390/ma17030590},
	journal-iso = {MATERIALS},
	journal = {MATERIALS},
	volume = {17},
	unique-id = {34657361},
	keywords = {STEEL; Automotive industry; Aluminium alloy; Titanium alloy; body panel},
	year = {2024},
	eissn = {1996-1944},
	orcid-numbers = {Najm, Sherwan Mohammed/0000-0003-3412-0716}
}

@article{MTMT:34565460,
	title = {A comparative machinability analysis of polyimine vitrimer, epoxy and polycarbonate polymers through orthogonal machining experiments},
	url = {https://m2.mtmt.hu/api/publication/34565460},
	author = {Poór, Dániel István and Tobey, Marina and Taynton, Philip and Pomázi, Ákos and Toldy, Andrea and Geier, Norbert},
	doi = {10.1007/s00170-024-13087-9},
	journal-iso = {INT J ADV MANUFACT TECHNOL},
	journal = {INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY},
	volume = {131},
	unique-id = {34565460},
	issn = {0268-3768},
	abstract = {End-of-life management of fibre-reinforced thermoset composites is challenging due to the difficult-to-recycle reinforcements and the irreversibly polymerised thermoset matrix; therefore, researchers proposed the vitrimers as a sustainable alternative to thermosetting polymers. Although the early results of the material scientists are promising, the machinability of vitrimers has yet to be explored. Therefore, this paper aims to present a comparative machinability study of polyimine vitrimer, pentaerythritol-based epoxy (PER) and polycarbonate polymers through orthogonal machining experiments. Reflecting on the temperature-dependent properties of vitrimers, the starting temperature of the cutting tool was varied between room temperature and an elevated temperature above 155 °C. The cutting tool was heated by a 2000-W hot air gun until the surface temperature of the cutting tool, monitored by a VariocamHD thermographic IR camera (with Jenoptik IR 1.0/60 LW lens) and checked by a Fluke 51 II thermometer with a type K thermocouple, was permanently above 155 °C for 5 min. The cutting force was measured by a Kistler 9257B dynamometer, and the machined surface was characterised by a Mitutoyo Surftest SJ-400 surface roughness tester and Keyence VHX-5000 (with VH-Z20UT VH lens) microscope. The analysis of variances (ANOVA) results show that the sustainable vitrimer polymer is an appropriate substitute for thermosetting epoxy polymers, especially at low cutting temperatures.},
	year = {2024},
	eissn = {1433-3015},
	pages = {1361-1376},
	orcid-numbers = {Poór, Dániel István/0000-0002-8036-7966; Pomázi, Ákos/0000-0003-2969-8679; Toldy, Andrea/0000-0003-3569-1828; Geier, Norbert/0000-0001-7937-7246}
}