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Information × Registration Number 0224U033102, (0124U004371) , R & D reports Title Development of thermoplastics precision finishing technology with products of "green" low-pressure hydrogen combustion popup.stage_title Розробка числових моделей технологічних та робочих процесів ІТЕМ оброблення деталей з термопластів продуктами згоряння «зеленого» водню Head Tsehelnyk Yevhen V., Кандидат технічних наук Registration Date 18-12-2024 Organization O.M. Beketov national university of urban economy in Kharkiv popup.description1 Research into the possibility of creating a safe and environmentally friendly technology for the finishing of high-precision parts made of thermoplastics, including those obtained by 3D printing methods, with the products of combustion of low-pressure hydrogen-air mixtures based on "green" hydrogen in the Impulse Thermal Energy Method, as well as automatic determination of processing modes due to development of digital twins of work processes. popup.description2 The project aims to create an automated process for finishing parts made of thermoplastic materials based on the pulsed thermal energy method (ITEM). The technology being developed can be used to implement a number of finishing operations, including polishing parts obtained by 3D printing for subsequent metallization. The basis for the study is the ITEM method, in which processing is carried out with time-controlled release of combustion products from the working chamber. The advantage of the method is the precise dosing of the heat flux and the ability to process parts of arbitrary geometric shapes, including those with internal channels and cavities. Unlike the basic version of the method, the study plans to use hydrogen fuel mixtures with a pressure lower than atmospheric and hydrogen supply from the electrolyzer. At the current stage, numerical models of technological processes ITEM for processing thermoplastic parts and working processes in the equipment for implementing the proposed method - generation of a hydrogen-air mixture, combustion taking into account heat exchange, and the release of combustion products have been developed. A mathematical and numerical model of the optimal location of the processed parts in the chamber has been developed, taking into account the forbidden zone, which for the studied process is a zone with an elevated temperature value, the occurrence of which is due to the Mach effect Product Description popup.authors Aksonov Yevhen O. Arsenieva Olha P. Biletskyi Ihor V. Kombarov Volodymyr V. Pylypenko Oleksii I. Plankovskyi Serhii I. Romanova Tetiana Ye. Fesenko Oleksii І. Tsehelnyk Yevhen V. Shypul Olha V. popup.nrat_date 2024-12-18 Close