TY - JOUR AU - Takács, László AU - Szabó, Ferenc TI - Kompozit szerkezetek optimális részekre bontása a gyártásközi költségek minimalizálására JF - POLIMEREK J2 - POLIMEREK VL - 10 PY - 2024 IS - 12 SP - 362 EP - 368 PG - 7 SN - 2415-9492 UR - https://m2.mtmt.hu/api/publication/35696661 ID - 35696661 N1 - A munkát a Nemzeti Kutatási, Fejlesztési és Innovációs Hivatal (NKFIH) PIACI-KFI pályázata (2019-1.1.1-PIACI-KFI-2019-00205) és OTKA FK 138501 pályázata támogatta. A munka az RRF-2.3.1-21-2022-00009, azonosítószámú, Megújuló Energiák Nemzeti Laboratórium megnevezésű projekt a Széchenyi Terv Plusz program keretében, az Európai Unió Helyreállítási és Ellenállóképességi Eszközének támogatásával valósult meg. Kutatásunk a Nemzeti Kutatási Fejlesztési és Innovációs Hivatal (NKFIH) 2020-1.2.3-EUREKA-2021-00010 pályázatának szakmai támogatásával készült. LA - Hungarian DB - MTMT ER - TY - CONF AU - Széplaki, Péter AU - Szabó, Ferenc ED - Barabás, István TI - Fröccsöntő szerszám inzertek deformációinak mérése és vizsgálata gyártási ciklus közben T2 - OGÉT 2023 PB - Erdélyi Magyar Műszaki Tudományos Társaság Gépészeti Szakosztály C1 - Kolozsvár T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 31. PY - 2023 SP - 450 EP - 453 PG - 4 UR - https://m2.mtmt.hu/api/publication/34120369 ID - 34120369 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Takács, László AU - Szabó, Ferenc TI - Automated determination of the optimal manufacturing direction of polymer composite shell structures JF - IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING J2 - IOP CONF SER MATER SCI ENG VL - 1246 PY - 2022 IS - 1 PG - 8 SN - 1757-8981 DO - 10.1088/1757-899X/1246/1/012026 UR - https://m2.mtmt.hu/api/publication/33100103 ID - 33100103 AB - There is a promising potential in polymer composites in the automotive industry; therefore, design methods aimed at cost and weight efficiency have become increasingly important. The tool cost is a considerable amount of the total cost, which is affected by the direction of the manufacturing planes. In this paper, a method is introduced to automatically determine the optimal manufacturing direction of an arbitrary shell structure. The method is implemented in Python environment. A meshed surface model is read as input, and the geometrical complexity factors are calculated from all directions in the space in a discretized way. A new 3D branch diagram is shown with which the calculated values can be visualized and evaluated. After that, an undercut factor is introduced and calculated, and it is demonstrated that the minimum of the product of these measures can give the optimal manufacturing direction in a fully automatized way. The paper presents a study about a train seat to show the industrial applicability of the method by evaluating the effect of the manufacturing directions and geometrical complexities at different partitioning of the composite shell on material cost. LA - English DB - MTMT ER - TY - JOUR AU - Fris, Dorottya AU - Szabó, Ferenc TI - Investigation of segregation in the runner system during injection moulding JF - IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING J2 - IOP CONF SER MATER SCI ENG VL - 1246 PY - 2022 IS - 1 PG - 8 SN - 1757-8981 DO - 10.1088/1757-899X/1246/1/012029 UR - https://m2.mtmt.hu/api/publication/33210866 ID - 33210866 AB - The goal of this study is to investigate segregation in the runner system during injection moulding. Segregation is a phenomenon which occurs during the injection moulding of filled or reinforced polymer systems. The effects of segregation can be so severe that the process can lead to waste products. Even though segregation is an important problem, so far it has been little researched. However, it would be very beneficial if segregation during injection moulding could be predicted through simulation software. In order to achieve that, we must first understand what causes segregation. We injection moulded several specimens using polypropylene, a transparent polymer, and used 10.8 V% ceramic beads as filler with different injection moulding parameters. We investigated the effect of melt temperature and injection rate, which were set to 180, 220, 260 °C and 5, 20, 80 cm 3 /s. We observed segregation with an optical microscope and used a furnace to burn the PP and measured the weight of the leftover beads in order to determine the bead content in various regions. LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Ferenc AU - Suplicz, András AU - Kovács, József Gábor TI - Development of injection molding simulation algorithms that take into account segregation JF - POWDER TECHNOLOGY J2 - POWDER TECHNOL VL - 389 PY - 2021 SP - 368 EP - 375 PG - 8 SN - 0032-5910 DO - 10.1016/j.powtec.2021.05.053 UR - https://m2.mtmt.hu/api/publication/32037544 ID - 32037544 N1 - Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., Budapest, H-1111, Hungary MTA-BME Lendület Lightweight Polymer Composites Research Group, Műegyetem rkp. 3., Budapest, H-1111, Hungary Cited By :1 Export Date: 14 June 2022 CODEN: POTEB Correspondence Address: Suplicz, A.; Department of Polymer Engineering, Műegyetem rkp. 3., Hungary; email: suplicz@pt.bme.hu Chemicals/CAS: polypropylene, 25085-53-4, 9003-07-0 Funding details: Hungarian Scientific Research Fund, OTKA, FK134336 Funding details: Magyar Tudományos Akadémia, MTA Funding details: Nemzeti Kutatási, Fejlesztési és Innovaciós Alap, NKFIA Funding details: Innovációs és Technológiai Minisztérium Funding details: National Research, Development and Innovation Office, 2017-2.3.7-TÉT-IN-2017-00049, 2018-1.3.1-VKE-2018-00001, 2019-1.1.1-PIACI-KFI-2019-00205 Funding text 1: This work was supported by the National Research, Development and Innovation Office, Hungary ( 2019-1.1.1-PIACI-KFI-2019-00205 , 2018-1.3.1-VKE-2018-00001 , 2017-2.3.7-TÉT-IN-2017-00049 ). The research reported in this paper and carried out at BME has been supported by the NRDI Fund ( TKP2020 IES , Grant No. BME-IE-NAT) based on the charter of bolster issued by the NRDI Office under the auspices of the Ministry for Innovation and Technology. This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences . The research was supported by the ÚNKP-20-5 New National Excellence Program of the Ministry for Innovation and Technology from the source of the National Research, Development and Innovation Fund . This work was supported by the Hungarian Scientific Research Fund ( OTKA FK134336 ). LA - English DB - MTMT ER - TY - JOUR AU - Takács, László AU - Szabó, Ferenc TI - An Effective Method of Modeling the Deformation Behavior of Polymer Sandwich Structures with Adhesive Joints JF - APPLIED COMPOSITE MATERIALS J2 - APPL COMPOS MATER VL - 28 PY - 2021 SP - 1959 EP - 1978 PG - 20 SN - 0929-189X DO - 10.1007/s10443-021-09948-1 UR - https://m2.mtmt.hu/api/publication/32154399 ID - 32154399 LA - English DB - MTMT ER - TY - CONF AU - Széplaki, Péter AU - Hajagos, Szabolcs AU - Zink, Béla AU - Szabó, Ferenc ED - Barabás, István TI - Fröccsöntött termékben elhelyezett fotopolimer inzert hőtanának és deformációjának vizsgálata T2 - XXIX. Nemzetközi Gépészeti Konferencia OGÉT 2021 PB - Erdélyi Magyar Műszaki Tudományos Társaság (EMT) C1 - Kolozsvár T3 - Nemzetközi Gépészeti Találkozó (OGÉT), ISSN 2068-1267 ; 29. PY - 2021 SP - 196 EP - 199 PG - 4 UR - https://m2.mtmt.hu/api/publication/33699178 ID - 33699178 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Takács, László AU - Szabó, Ferenc TI - Experimental and Numerical Failure Analysis of Adhesive Joint of Glass Fiber Reinforced Polymer Composite JF - PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING J2 - PERIOD POLYTECH MECH ENG VL - 64 PY - 2020 IS - 1 SP - 88 EP - 95 PG - 8 SN - 0324-6051 DO - 10.3311/PPme.15106 UR - https://m2.mtmt.hu/api/publication/31144681 ID - 31144681 N1 - Funding Agency and Grant Number: National Research, Development and Innovation (NKFIH) Fund [NVKP_16-1-2016-0046] Funding text: The project is funded by the National Research, Development and Innovation (NKFIH) Fund, Project title: "Production of polymer products by a short cycle time, automatized production technology for automotive applications, with exceptional focus on the complexity and recyclability of the composite parts"; The application ID number: NVKP_16-1-2016-0046. The developers are grateful for the support. Correspondence Address: Szabó, F.; Department of Polymer Engineering, Műegyetem rkp. 3, Hungary; email: szabof@pt.bme.hu LA - English DB - MTMT ER - TY - JOUR AU - Takács, László AU - Szabó, Ferenc TI - Modeling the deformation behavior of polymer sandwich structures with inhomogeneous core JF - IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING J2 - IOP CONF SER MATER SCI ENG VL - 903 PY - 2020 PG - 8 SN - 1757-8981 DO - 10.1088/1757-899X/903/1/012024 UR - https://m2.mtmt.hu/api/publication/31494241 ID - 31494241 LA - English DB - MTMT ER - TY - JOUR AU - Fris, Dorottya AU - Szabó, Ferenc TI - Modelling of segregation during injection moulding JF - IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING J2 - IOP CONF SER MATER SCI ENG VL - 903 PY - 2020 PG - 8 SN - 1757-8981 DO - 10.1088/1757-899X/903/1/012022 UR - https://m2.mtmt.hu/api/publication/31656102 ID - 31656102 LA - English DB - MTMT ER -