2023 № 98 Різання та інструменти в технологічних системах
Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/65691
Переглянути
3 результатів
Результати пошуку
Документ Roundness error and topography of hard turned surfaces(Національний технічний університет "Харківський політехнічний інститут", 2023) Sultana, Jakiya; Sztankovics, IstvánAccuracy and topography are significant indicators of precision machined high-quality surfaces. Case hardened steel (16MnCr5) was analyzed to obtain information about the effects of technological data and the connections between the analyzed accuracy (roundness) and roughness parameters (Sa, Sz, Ssk, Sku). It was found that the feed rate has a significant influence on the roundness and the roughness parameters, and there are strong relationships between the roundness and these roughness parameter values: the correlation coefficients varied between 0.78 and 0.85.Документ Analyzing surface integrity elements of hard turned 16MnCr5 steel(Національний технічний університет "Харківський політехнічний інститут", 2023) Molnar, ViktorSurface 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.Документ Determination of reliable area sizes for 3D roughness measurement(Національний технічний університет "Харківський політехнічний інститут", 2023) Zaghal, Jawad; Benke, MártonSurface roughness characterization plays an important role in the qualification of machined surfaces. As a result of the development of high resolution 3D scanning techniques, researchers and technologists have more possibilities to analyze surface topography in a more detailed way. The purpose of this study is determining the minimal measurement area size of surfaces hard machined by single-point and abrasive tools. Some important height parameters were analyzed: Sa, Sq, Sp, Sv, Ssk and Sku. It was found that the minimum area sizes vary for the different roughness parameters, however, in several cases minimization is possible, depending on the purpose of the surface analytics.