Preliminary communication

Cutting tool wear monitoring with the use of impedance layers

Marek Sadílek orcid.org/0000-0001-6680-6865 ; VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining and Assembly, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Jiří Kratochvíl ; VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining and Assembly, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Jana Petrů ; VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining and Assembly, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Robert Čep orcid.org/0000-0001-9610-4215 ; VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining and Assembly, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Tomáš Zlámal ; VŠB-Technical University of Ostrava, Faculty of Mechanical Engineering, Department of Machining and Assembly, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Dana Stančeková ; University of Žilina, Faculty of Mechanical Engineering, Department of Machining and Manufacturing Engineering, Univerzitna 8215/1, 010 26 Žilina, Slovakia

Abstract

The article deals with problems of cutting process monitoring in real time. It is focused on tool wear by means of impedance layers applied on ceramic cutting inserts. In the experimental part the cutting process is monitored using electrical resistance measurement. The results are compared and verified using the monitored cutting temperature and tool wear. The testing of impedance layers is reasonable mainly for cutting edge diagnostics. The width of this layer determines the wear allowance of tool wear (flank wear). Excessive wear causes a sharp reduction of this layer and thus a sharp increase in electrical resistance, which is a warning signal of the end of the cutting edge durability.

Keywords

ceramic insert; impedance layer; tool wear; turning

Hrčak ID:

123349

URI

https://hrcak.srce.hr/123349

Publication date:

24.6.2014.

Article data in other languages: croatian

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