@inbook{MTMT:34344251, title = {Surface roughness and cutting force of hard turned 16MnCr5 steel}, url = {https://m2.mtmt.hu/api/publication/34344251}, author = {Molnár, Viktor}, booktitle = {Development in Machining Technology: Scientific – Research Reports Vol. 11}, unique-id = {34344251}, year = {2023}, pages = {118-128} } @{MTMT:34166679, title = {Artificial Intelligence in Fashion Design and IPRS}, url = {https://m2.mtmt.hu/api/publication/34166679}, author = {Mohamed, Kaja Bantha Navas Raja and Batra, Divya and Shivani, Shivani and Molnár, Viktor and Raj, Sunny}, booktitle = {Artificial Intelligence and Knowledge Processing}, doi = {10.1201/9781003328414-29}, unique-id = {34166679}, year = {2023}, pages = {339-347} } @article{MTMT:34133716, title = {Improving surface integrity by optimizing slide diamond burnishing parameters after hard turning of 42CrMo4 steel}, url = {https://m2.mtmt.hu/api/publication/34133716}, author = {Zaghal, Jawad and Molnár, Viktor and Benke, Márton}, doi = {10.1007/s00170-023-12008-6}, journal-iso = {INT J ADV MANUFACT TECHNOL}, journal = {INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY}, volume = {128}, unique-id = {34133716}, issn = {0268-3768}, abstract = {Despite turning could be replaced by grinding as a finishing machining process, it is considered not satisfactory for elongating the fatigue life of the component because of the produced tensile residual stresses and irregularities formed at the surface. Therefore, a complimentary operation should be applied after hard turning. Slide diamond burnishing process is a mechanical finishing operation used after hard turning to further decrease the surface roughness, introducing compressive residual stresses, increasing the microhardness, and refining the microstructure of the surface and subsurface layer of the workpiece. The main result is increasing the fatigue life of the rotating components subjected to cyclic loading. In this work, the simultaneous effect of changing the burnishing speed, feed, and force of slide diamond burnishing on surface roughness, residual stresses, and microhardness of 42CrMo4 hard-turned steel was studied. It was found that the effect of one parameter was highly affected by the others. As a result, the optimal burnishing parameters were specified, with which better surface quality was obtained than after grinding.}, year = {2023}, eissn = {1433-3015}, pages = {2087-2103}, orcid-numbers = {Zaghal, Jawad/0000-0003-3374-7947; Benke, Márton/0000-0002-1354-8660} } @article{MTMT:34027345, title = {Influence of Cutting Parameters and Tool Geometry on Topography of Hard Turned Surfaces}, url = {https://m2.mtmt.hu/api/publication/34027345}, author = {Molnár, Viktor}, doi = {10.3390/machines11060665}, journal-iso = {MACHINES}, journal = {MACHINES}, volume = {11}, unique-id = {34027345}, abstract = {Three-dimensional topography measurement is a focus area of precision machining because it provides detailed information on the functional behavior of contacting surfaces. The purpose of this study is to analyze how the process parameters and the edge geometry of the cutting insert influence the topographical characteristics of hardened 16MnCr5 steel surfaces and to determine the favorable combinations of technology parameter values based on the analyzed topography parameters (Ssk, Sku, Sz, Sa, Sk, Spk, Svk). A research question is whether the analyzed parameters can be substituted by each other or not. A hard turning experiment was carried out based on a full factorial design of experiments, and the areas of the machined surfaces were scanned and analyzed by analysis of variance, regression analysis (response function), and correlation analysis. It was found that there are strong correlations between the topography parameters that allow the substitution of one with another; the main influencing cutting parameter is the feed rate for both insert types. The contributions of the study are the numerical information with regard to the correlations among the topography parameters, as well as the extent of the influence of cutting parameters.}, year = {2023}, eissn = {2075-1702}, orcid-numbers = {Molnár, Viktor/0000-0002-1459-807X} } @misc{MTMT:34026821, title = {Minőségfejlesztési módszerek}, url = {https://m2.mtmt.hu/api/publication/34026821}, author = {Molnár, Viktor}, unique-id = {34026821}, year = {2023} } @article{MTMT:34021819, title = {Experimental Investigation of Tribology-Related Topography Parameters of Hard-Turned and Ground 16MnCr5 Surfaces}, url = {https://m2.mtmt.hu/api/publication/34021819}, author = {Molnár, Viktor}, doi = {10.3390/lubricants11060263}, journal-iso = {LUBRICANTS}, journal = {LUBRICANTS}, volume = {11}, unique-id = {34021819}, abstract = {Several surface topography parameters are available for the quantification of tribological properties of machined surfaces. Although these parameters and their influences are widely studied, there are contradictory findings due to the nature of the topography parameters, i.e., the behavior of different materials and cutting tool interactions lead to relatively varying numerical results. A comprehensive study of these interactions can contribute to more exact industrial machining applications. In this study, tribology-related 3D topography parameters of hard-machined (hard-turned and ground) surfaces were analyzed. The machining experiments were carried out based on a detailed design of the experiment; the analyzed material was case-hardened low-carbon content steel, which is widely used for automotive, industrial components such as bearings or gears. From the topography data, response function, correlation, and relative deviation analyses were carried out for the analyzed topography parameters, and tribology maps were created to support the selection of optimal cutting parameter values.}, year = {2023}, eissn = {2075-4442}, orcid-numbers = {Molnár, Viktor/0000-0002-1459-807X} } @article{MTMT:33882469, title = {ANALYZING SURFACE INTEGRITY ELEMENTS OF HARD TURNED 16MNCR5 STEEL}, url = {https://m2.mtmt.hu/api/publication/33882469}, author = {Molnár, Viktor}, doi = {10.20998/2078-7405.2023.98.05}, journal-iso = {CUTTING TOOL TECHN SYST}, journal = {REZANIE I INSTRUMENT V TEHNOLOGICESKIKH SISTEMAKH / CUTTING AND TOOL IN TECHNOLOGICAL SYSTEMS}, volume = {98}, unique-id = {33882469}, issn = {2078-7405}, abstract = {Surface integrity plays a determinant role in the functional requirement of precision machined parts. In the automotive industry billions of components are manufactured by using case hardened steels. In this study some surface integrity elements, such as surface roughness or residual stress are analyzed based on systematic machining experimental plan to optimize the applied cutting parameters. Recommendations are made for these parameters based on the measurement data and some widely used functional requirements.}, year = {2023}, pages = {49-58}, orcid-numbers = {Molnár, Viktor/0000-0002-4156-9987} } @inproceedings{MTMT:33214312, title = {Designation of cutting data based on 3D surface roughness and material removal rate}, url = {https://m2.mtmt.hu/api/publication/33214312}, author = {Molnár, Viktor and Kundrák, János}, booktitle = {Development in Machining Technology: Scientific – Research Reports vol.10}, unique-id = {33214312}, year = {2022}, pages = {23-32} } @article{MTMT:33213152, title = {Analysis of the Sbi and Svi functional indices in hard machining}, url = {https://m2.mtmt.hu/api/publication/33213152}, author = {Molnár, Viktor}, doi = {10.20998/2078-7405.2022.97.10}, journal-iso = {CUTTING TOOL TECHN SYST}, journal = {REZANIE I INSTRUMENT V TEHNOLOGICESKIKH SISTEMAKH / CUTTING AND TOOL IN TECHNOLOGICAL SYSTEMS}, volume = {97}, unique-id = {33213152}, issn = {2078-7405}, year = {2022}, pages = {113-123} } @book{MTMT:33083435, title = {A Quality-Centered Complex Management Model}, url = {https://m2.mtmt.hu/api/publication/33083435}, isbn = {9789633582565}, author = {Molnár, Viktor}, publisher = {Miskolci Egyetem Gyártástudományi Intézet}, unique-id = {33083435}, year = {2022} }