Investigation of wear and tool life of coated carbide and cubic boron nitride cutting tools in high speed milling

0445188 - ÚGN 2016 RIV US eng J - Journal Article
Twardowski, P. - Legutko, S. - Krolczyk, G. - Hloch, Sergej
Investigation of wear and tool life of coated carbide and cubic boron nitride cutting tools in high speed milling.
Advances in Mechanical Engineering. Roč. 7, č. 6 (2015), s. 1-9. ISSN 1687-8132. E-ISSN 1687-8140
Institutional support: RVO:68145535
Keywords : hardened steels * milling tools * high speed machining * tool life * wear
Subject RIV: JQ - Machines ; Tools
Impact factor: 0.640, year: 2015
http://ade.sagepub.com/content/7/6/1687814015590216.full.pdf+html

The objective of the investigation was analysis of the wear of milling cutters made of sintered carbide and of boron nitride. The article presents the life period of the cutting edges and describes industrial conditions of the applicability of tools made of the materials under investigation. Tests have been performed on modern toroidal and ball-end mill cutters. The study has been performed within a production facility in the technology of high speed machining of 55NiCrMoV6 and X153CrMoV12 hardened steel. The analysed cutting speed is a parameter which significantly influences the intensity of heat generated in the cutting zone. Due to the wear characteristics, two areas of applicability of the analysed tools have been distinguished. For v c 300m/min, sintered carbide edges are recommended; for v c . 500m/min, boron nitride edges. For 300 v c 500m/min, a transition area has been observed. It has been proved that the application of sintered carbide edges is not economically justified above certain cutting speed.
Permanent Link: http://hdl.handle.net/11104/0247569