Видання НТУ "ХПІ"
Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/62886
Переглянути
3 результатів
Результати пошуку
Документ Investigation of face milled surface topography on C45 workpiece assuming movement at 30° and 60° to feed direction(Національний технічний університет "Харківський політехнічний інститут", 2023) Nagy, Antal; Kundrak, JanosWhen surfaces with anisotropic texture are moved in different directions related to their assembled counterpart during operation, the friction conditions change, as they are determined by the lay of the topographies. In the article, contributing to the exploration of this characteristic, we analyze the inhomogeneity of the topography on a face milled plane surface with a symmetrical setting in sections at an angle of 30° or 60° to the feed direction. Roughness profiles are recorded at 13 pointslocated equidistantly from each other in each measurement plane, and the degree and distribution of the roughness deviations are determined on the surface.Документ Theoretical value and experimental study of arithmetic mean deviation in rotational turning(Національний технічний університет "Харківський політехнічний інститут", 2022) Sztankovics, István; Kundrak, JanosThe calculation method of the Arithmetic Mean Deviation (Ra) is presented for rotational turning. The necessary equations for the calculation of Ra are given beginning from the equation of the cut surface theoretical profile, and we determine the theoretical values in the studied range of the technological parameters. Cutting experiments with these data were performed and the roughness values of the machined surfaces were measured. Then we carried out a comparative analysis of the measured and the calculated values ofthe arithmetic mean deviation.Документ Decision support method for the applicability of hard turning(Національний технічний університет "Харківський політехнічний інститут", 2022) Kundrak, Janos; Deszpoth, Istvan; Molnar, ViktorIn this study the applicability of hard turning is analyzed in the case of disc-shaped parts (gear wheels). The relevance of such parts has been increasing in the automotive industry; therefore, the efficiency of large series or mass production has high priority. The novelty of this paper is the collection of factors that has to be considered in preparation for applicability decisions of hard turning in order to ensure efficient machining. This can be the basis of the IT support, i.e. an automation solution for technologists. The introduced process is elaborated on the basis of theoretical considerations and production shop-floor experience.