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Документ Roughness of aluminum surfaces face milled with a diamond tool(Національний технічний університет "Харківський політехнічний інститут", 2020) Kundrák, János; Makkai, Tamás; Nagy, Antal; Emri, G.This article describes the results of face milling experiments. The roughness parameters of machined surfaces with diamond were examined. Measurements were made in three planes parallel to the feed direction. Changes in the roughness profile diagram and roughness values as a function of the feed rate were analyzed.Документ Examination of 2D and 3D surface roughness parameters of face milled aluminium surfaces(НТУ "ХПІ", 2018) Kundrák, János; Varga, Gyula; Nagy, Antal; Makkai, TamásMaterial removal with a rotating cutting tool has a series of special characteristics due to the movement relations. For face milling, looped cycloids occur, which also affects the roughness characteristics of the machined surface. This article analyses how the values of 2D and 3D roughness parameters change in symmetrical milling of flat surfaces of aluminium parts in planes parallel to the feed direction.Документ Effect of cutting data selection on productivity in face milling(НТУ "ХПІ", 2018) Kundrák, János; Molnár, Viktor; Deszpoth, István; Makkai, TamásFace milling as a cutting procedure is used for high productivity manufacturing of prismatic components. In the automotive industry, characterized by mass production, the enhancement of productivity is a primary goal for manufacturing companies. There is a wide range of methods for increasing productivity. This paper analyses how productivity can be increased by the mach ining time, material removal rate and surface rate by choosing the appropriate cutting data. Cutting experiments were carried out for machining prismatic components and the change in machining time was analysed. It was proved that within the performance limits of the WGMT (Workpiece – Gadget – Machine – Tool) system a significant amount of manufacturing time and therefore cost can be saved while the geometric accuracy and surface quality of the component remain as specified in the blueprint.Документ Investigation of cutting force in face milling(НТУ "ХПІ", 2017) Kundrák, János; Makkai, Tamás; Deszpoth, István; Nagy, AntalThe increase of cutting applied in finishing processes can be achieved first of all by increasing the cutting speed and feed. In face milling, if feed fz per tooth is increased and/or the shape of the chip cross section is changed, the load of the cutting edges changes and influences the cutting forces and the actual efficiency. In this paper, the cutting force arising in chip removal and changing under the influence of the increased feed is analysed.Документ Investigating the impact of feed and cutting speed on cutting forces for the increase of surface removal rate in face milling(НТУ "ХПІ", 2017) Kundrák, János; Makkai, Tamás; Markopoulos, Angelos P.Face milling is used for the manufacturing of engineering surfaces. A significant part of the produced surfaces pertains to flat surfaces with high quality. Surface quality, in turn, is connected to the machining conditions used in the process. In this paper, the influence of feed and cutting speed on cutting forces is experimentally investigated, with a view to increase surface removal rate A w (mm²/min) of the process. The experimental results are treated with ANOVA, indicate a high influence of the feed on all components of the cutting force. With the analysis, optimum conditions may be obtained with the aim of lower cutting forces.