Научные журналы НИЯУ МИФИ
Постоянный URI для этого раздела
В коллекцию включены журналы, в которых НИЯУ МИФИ является учредителем и соучредителем.
Обзор
Просмотр Научные журналы НИЯУ МИФИ по Ключевые слова "3D-printing"
Теперь показываю 1 - 3 из 3
Количество результатов на страницу
Sort Options
- ПубликацияОткрытый доступ3D-Cloning of Core Plug Structures: Insights and Challenges into FDM and DLP Printing Based on Microtomography Data(НИЯУ МИФИ, 2025) Kadyrov, R. I.; Nguyen, T. H.; Statsenko, E. O.; Kharin, N. V.This study explores the use of FDM (Fused Deposition Modeling) and DLP (Digital Light Processing) 3D printing techniques to create accurate replicas of core plugs from reservoir rock structures based on µCT (microtomography) scans. Due to the challenges in obtaining core plug samples for reservoir characterization, this research aims to develop a cost-effective and reusable alternative by replicating the pore structure of natural rocks for use in experimental studies. A carbonate core plug was µCT-scanned to obtain a high-resolution 3D digital model of its pore structure, which was then digitally processed to simplify its complex pore geometry for 3D printing. The model was printed using FDM with 0.2 mm and 0.4 mm nozzles, as well as DLP techniques. Both methods were evaluated by re-scanning the printed samples with µCT and analyzing their structural, porosity, and permeability characteristics. FDM printing demonstrated the ability to replicate larger pore structures, but the presence of interlayer gaps resulted in inflated porosity and permeability values compared to the original core plug, and fine pore features were inconsistently replicated across multiple prints. DLP printing, while more accurate in capturing morphology and finer details, also exhibited variability in the reproduction of small pore elements. Furthermore, cracks were observed in DLP samples due to stresses during resin curing, and the retention of residual resin in pores affected permeability and reduced effective porosity. The study highlights the limitations of both FDM and DLP methods in fully reproducing the complexity of pore networks, particularly at fine scales. The results point to the need for technological improvements in both methods to enhance the accuracy and reproducibility of 3D-printed core replicas.
- ПубликацияОткрытый доступ3D-Cloning of Core Plug Structures: Insights and Challenges into FDM and DLP Printing Based on Microtomography Data.(2025) Kadyrov, R. I.; Nguyen, T. H.; Statsenko, E. O.; Kharin, N. V.This study explores the use of FDM (Fused Deposition Modeling) and DLP (Digital Light Processing) 3D printing techniques to create accurate replicas of core plugs from reservoir rock structures based on µCT (microtomography) scans. Due to the challenges in obtaining core plug samples for reservoir characterization, this research aims to develop a cost-effective and reusable alternative by replicating the pore structure of natural rocks for use in experimental studies. A carbonate core plug was µCT-scanned to obtain a high-resolution 3D digital model of its pore structure, which was then digitally processed to simplify its complex pore geometry for 3D printing. The model was printed using FDM with 0.2 mm and 0.4 mm nozzles, as well as DLP techniques. Both methods were evaluated by re-scanning the printed samples with µCT and analyzing their structural, porosity, and permeability characteristics. FDM printing demonstrated the ability to replicate larger pore structures, but the presence of interlayer gaps resulted in inflated porosity and permeability values compared to the original core plug, and fine pore features were inconsistently replicated across multiple prints. DLP printing, while more accurate in capturing morphology and finer details, also exhibited variability in the reproduction of small pore elements. Furthermore, cracks were observed in DLP samples due to stresses during resin curing, and the retention of residual resin in pores affected permeability and reduced effective porosity. The study highlights the limitations of both FDM and DLP methods in fully reproducing the complexity of pore networks, particularly at fine scales. The results point to the need for technological improvements in both methods to enhance the accuracy and reproducibility of 3D-printed core replicas.
- ПубликацияОткрытый доступResearch into the Application of Additive Technologies in the Development of Tools for Microdeformation of Sheet Blanks Made from Non-Ferrous Metals and Alloys(НИЯУ МИФИ, 2024) Petrov, M. A.; Tran, D. H.The paper shows the results of manufacturing of stamping tools for microforming operations. The tools and their main parts were obtained by different additive manufacturing technologies, from different materials (polymers and metals). A non-contact 3D scanning system was used to obtain metrological information on the accuracy of individual parts and assembly/subassembly. It was found that in order to match the dimensions of prototypes with the drawing dimensions and fall within the tolerance field, it is necessary to design the initial 3D model taking into account the peculiarities of 3D printing technology, mechanical processing, as well as the performance characteristics of the tool, which can be obtained from the results of wear tests.