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

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20192

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Ключові слова: search.filters.subject.rectangular inserts

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  • Ескіз
    Документ
    Investigation of the effect of depth of cut and cutting speed on cutting forces during face milling of steel with a rectangular cutting insert
    (Національний технічний університет "Харківський політехнічний інститут", 2019) Karkalos, Nikolaos E.; Markopoulos, Angelos P.; Makkai, Tamas; Kundrak, Janos
    In metal machining processes, the achievement of a sufficiently high material removal rate is desirable. Material removal rate can be increased to the desired value by an increase of feed rate value and also by increase of cutting speed or depth of cut values. However, as it is also required that surface quality and deformation should be within the acceptable limits, it is necessary to control them by selecting the appropriate process parameters values. In this study, face milling experiments are conducted in order to investigate the effect of using different values of depth of cut and cutting speed on the cutting forces and specific cutting forces. A comparison between the experimental results from cases with constant feed rate and two different depths of cut at four different cutting speed values, ranging from 100 to 400 m/min is conducted. After the subsequent analysis of the results, conclusions on the effect of depth of cut and cutting speed on cutting forces and specific cutting forces are drawn.
  • Ескіз
    Документ
    Investigation of surface roughness characteristics of face milling
    (Національний технічний університет "Харківський політехнічний інститут", 2019) Nagy, Antal; Kundrak, Janos
    Surface quality and accuracy affect the integrity and lifetime of machine parts and the operational requirements of the structural (or assembly) units. These are the reasons that the expected surface roughness must be planned based on the operational requirements of the parts. The path of the tool edge, which is defined by the characteristics of the kinematics of face milling, makes the milled surface inhomogeneous, which means the roughness analysis in various directions gives different values. In this paper the effect of increasing the feed rate on surface roughness is investigated. This cutting data is chosen because increasing the feed rate is an effective way to increase productivity.