Regular Article

Improvement reliability of cutting ceramic through use of damping system and nanostructured multilayered composite coatings

¹ Moscow State Technological University STANKIN, Vadkovsky per. 1, Moscow 127994, Russia
² Komsomolsk-na-Amure State Technical University, 27, Komsomolsk-na-Amure 681013, Russia
³ JSC “Plant named after G.K. Korolev”, St. Zvereva-22, Ivanovo 153003, Russia
⁴ Federal State Unitary Enterprise “Keldysh Research Center”, Onezhskaya St. 8, Moscow 125438, Russia
⁵ National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse 31, Moscow 115409, Russia

^* e-mail: ecotech@rambler.ru

Received: 20 June 2016
Accepted: 28 December 2018

Abstract

This paper considers new avenues of improving the efficiency of machining hardened steels using damping devices and nanostructured multilayered composite coatings deposited on ceramic cutting tools with innovative arc-PVD processes with filtration of vapor-ion flow. A developed technology allows reducing peak stresses arising during cutting-in and providing improved reliability of ceramic tools. It is observed that the formation of modifying coatings on an edge ceramic tool in machining of hardened steels with HRC > 50 under the conditions of damping can reduce the coefficient of tool failure variation down to 0.3, and that improves the ability to predict failure of ceramic tools and allows recommending ceramic tools for the use in automated production.