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Decision support method for the applicability of hard turning
(Національний технічний університет "Харківський політехнічний інститут", 2022) Kundrak, Janos; Deszpoth, Istvan; Molnar, Viktor
In 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.
The effect of tool wear on chip formation in hard turning
(НТУ "ХПИ", 2011) Szabo, G.; Kundrak, Janos
This paper compares the cutting process characteristics depending on the extent of the tool flank wear. The research was executed with Finite Element Method analysis. The researched cutting process was hard turning, when case hardened steel 16MnCr5, 62±2 HRC was cut by a cubic boron nitride tool insert (CBN). The examined data were the main cutting force, the passive force, the cutting temperature and the chip segmentation morphology.