Original scientific paper

Cutting tool life tests of ceramic inserts for car engine sleeves

Robert Čep orcid.org/0000-0001-9610-4215 ; VŠB - Technical University of Ostrava, Faculty of Mechanical Engineering, 346 - Department of Machining and Assembly, 17. listopadu 15/2172, 708 33 Ostrava – Poruba, Czech Republic
Adam Janásek ; VŠB - Technical University of Ostrava, Faculty of Mechanical Engineering, 346 - Department of Machining and Assembly, 17. listopadu 15/2172, 708 33 Ostrava – Poruba, Czech Republic
Branislav Martinický ; University of Žilina, Faculty of Mechanical Engineering, Department of Machining and Manufacturing Technology, Univerzitna 1, 010 26 Zilina, Slovakia
Marek Sadílek ; VŠB - Technical University of Ostrava, Faculty of Mechanical Engineering, 346 - Department of Machining and Assembly, 17. listopadu 15/2172, 708 33 Ostrava – Poruba, Czech Republic

Abstract

This article is focused on the experimental determination of tool life tests for indexable ceramic cutting inserts. The set criterion of tool wear was VBBmax = 0,6 mm (in accordance with ISO 3685) or 30 pieces of machined sleeves. After at least one of the mentioned parameters was achieved, the tests were stopped and evaluated. Two types of cutting material by Saint Gobain Advanced Ceramics s.r.o. Company – ZTA 7 NI and D 250 were tested. We monitored their tool life at the same cutting parameters. The experiments were performed on machine tool – CHEMNITZ NILES N22. The machined material was the cast iron 25P mainly used for car engines. Tool wear was monitored on every fifth machined sleeve. Microgeometry was measured after tool wear test on each fifth sleeve. The aim was to determine the arithmetic tolerance of Ra profile, the greatest height of Rz profile and the external diameter D. The measurement was carried out four times; arithmetic average was performed subsequently as it is shown in the tables.

Keywords

cutting tool tests; machining; surface roughness; tool wear

Hrčak ID:

69585

URI

https://hrcak.srce.hr/69585

Publication date:

27.6.2011.

Article data in other languages: croatian

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