Influence of diamond component based on wurtzite boron nitride on wear resistance of cutting tool
-
Published:2020
Issue:2
Volume:6
Page:53-60
-
ISSN:2411-8001
-
Container-title:Ukrainian Journal of Mechanical Engineering and Materials Science
-
language:
-
Short-container-title:Ukr. j. mech. eng. mater. sci.
Author:
Volkogon Volodymyr, , Avramchuk Svitlana, Fedoran Yuriy, Kravchuk Andrii, Pavlychuk TetianaORCID, Antonyuk ViktorORCID, Avramchuk Kateryna, , , , , ,
Abstract
The article is devoted to the study of the influence of the diamond component in a composite superhard material based on wurtzite boron nitride on the stability of the tool during turning of hardened steels in the mode of smooth turning and when processing intermittent surfaces. The aim of the work is to study the influence of the content of the diamond component in the composite superhard material based on wurtzite boron nitride on the stability of the tool. Based on the analysis of the main patterns of changes in the coefficient of friction depending on various factors, the evaluation of composites containing diamonds of different dispersion in comparison with other materials of this class. The results of the study of the technical level of composite polycrystalline superhard materials based on wurtzite boron nitride of different composition and determination of the efficiency of their use as a cutting tool in the machining of hardened steels are presented. The intensity of wear of composites in the cutting tool during processing of hardened steels is experimentally determined. It is established that the presence of a diamond component in the composite significantly affects the stability of the tool in the conditions of smooth turning due to heat dissipation in contact with the processed material. In the processing of hardened steels with the presence of shock loads, the phase state of the matrix component of the composite plays a decisive role. The obtained research results make it possible to determine the optimal composition and conditions for obtaining a composite material of the system “boron nitride – diamond”, which provides the most effective application of the cutting tool in practice.
Publisher
Lviv Polytechnic National University
Reference32 articles.
1. [1] Instrumenty iz sverkhtverdykh materialov [Tools made of superhard materials], N. V. Novikova, and S. A. Klimenko, Eds. Moscow, Russia: Mashinostroyeniye Publ., 2014. [in Russian]. 2. [2] V. P. Astakhov, "Machining of Hard Materials - Definitions and Industrial Applications", in Machining of Hard Materials. London, UK: Springer, 2011, pp. 1-32. 3. [3] T. Halpin, G. Byrne, J. Barry, E. Ahearne, "The performance of polycrystalline cubic boron nitride tools in continuous, semi-interrupted, and interrupted hard machining", Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 223, issue 8, pp. 947-953, 2009. 4. [4] G. V. Borovskij, B. E. Pini, E. A. Khachikyan, "Vysokoproizvoditelnaya preczizionnaya obrabotka zakalennykh stalej malorazmernym instrumentom iz kubicheskogo nitrida bora (KNB)" ["High-performance precision machining of hardened steels with a small-sized tool made of cubic boron nitride (CBN)"], Izvestiâ MGTU "MAMI", no. 2 (14), pp. 30-38, 2012. [in Russian]. 5. [5] K. S. Barandych, S. P. Vysloykh, V. S. Antonyuk, "Ensuring fatigue life of parts during finish turning with cubic boron nitride tools", Journal of Superhard Materials, vol. 40, issue 3, 206-215, 2018.
|
|