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Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/35393

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2019 - 201912020 - 20221

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Автор: search.filters.author.Makkai, TamasКлючові слова: search.filters.subject.сили різання

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  • Ескіз
    Документ
    Face milling of stell with octagonal insert
    (Національний технічний університет "Харківський політехнічний інститут", 2022) Makkai, Tamas
    Face milling is often used to create flat surfaces, since when used as finishing, a suitable surface roughness can be achieved by fulfilling the specified dimension and tolerance requirements. In addition, high productivity can be reached by choosing the appropriate parameters of the cutting process. The cutting data also affect the cutting force and the wear of the tool, and another consideration is that the resulting vibrations can deteriorate the microgeometry of the surface. Several insert shapes are available for face milling. Experiments were carried out with a milling head equipped with a single octagonal insert. The effect of increasing the feed per tooth was examined through the cutting force components, while keeping the cutting speed and depth of cut fixed. The changes in the specific cutting force components were also analysed.
  • Ескіз
    Документ
    Face milling with a round insert at various cutting speeds and feed rates
    (Національний технічний університет "Харківський політехнічний інститут", 2019) Makkai, Tamas; Kundrak, Janos; Karkalos, Nikolaos E.; Markopoulos, Angelos P.
    Face milling is frequently used for the rendering of flat surfaces with a high degree of precision. With this machining process, high material removal rate is possible to be attained but management of cutting forces values is also desirable, in order to avoid excessive power consumption, tool wear or vibrations. This can be achieved by selecting the process parameters within an appropriate range for each case. In the present study, an experimental investigation is conducted with a view to determine the effect of two important process parameters, namely cutting speed and feed on the cutting forces and the specific cutting forces during face milling, in cases where a round insert is used.