Original scientific paper

https://doi.org/10.31803/tg-20190513114458

Cutting performance of deep cryogenic treated and nitrided HSS cutting tool inserts

Sanja Šolić ; University North, Department of Mechanical Engineering J. Križanića 31b, 42 000 Varaždin, Croatia
Zdravko Schauperl ; University of Zagreb, Faculty for Mechanical Engineering and Naval Architecture, Ivana Lučića 5, 10000 Zagreb, Croatia
Vlado Tropša ; University North, Department of Mechanical Engineering J. Križanića 31b, 42 000 Varaždin, Croatia

Abstract

High speed steel (HSS) is a very important industrial tool material and has been constantly improved for different wear resistance applications and cutting tools, i.e. drills, milling cutters, hobs and for the cutting tools in which the economical cutting speed is too low for choosing the carbide tools. The properties of HSS depend significantly on the parameters of the conducted heat treatment. In this paper, the influence of deep cryogenic treatment in combination with nitriding of metallurgical powder metallurgy HSS on the wear resistance was measured. Additionally, the cutting performance in a single point cutting tool machinability test at the configuration of the dry low-speed turning of steel was investigated. The results showed that deep cryogenic treatment itself, and in combination with nitriding, resulted in the reduction of the wear rate. The results of the single point cutting tool machinability test showed that deep cryogenic treated and nitrided HSS inserts performed worse than the classically heat-treated inserts and deep cryogenic treated HSS inserts exhibited approximately the same flank wear as the nitrided ones.

Keywords

deep cryogenic treatment; cutting tools; high speed steel; nitriding; wear resistance

Hrčak ID:

225474

URI

https://hrcak.srce.hr/225474

Publication date:

23.9.2019.

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