PSI - Issue 32

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 32 (2021) 291–294

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Abstract The article discusses the results of the study of coated and uncoated drills according to performance criteria. As it was obtained in the most of the tests of axial tools, the number of parts, machined by the tool before its resharpening, has increased by three or more times. Having implanted the coating from the side of flank surface of the tool, it is necessary to implant the coating from the side of cutting rim. That is why it is necessary to have a cutting tool with rotation in horizontal direction. When the coating is applied as mentioned above, we can reach the strengthening of the corners. The use of this method also allows reduction of coefficient of chip friction during its moving along the tool grooves. The results of the research on influence of wear-resistant coatings on tool operation efficiency allow us to make a conclusion that the use of titanium nitride coatings helps to increase the operation efficiency by 30% or more. © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer- review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” Keywords: axial tools, work surfaces of cutting tools, hard alloys, tool with coating 1. Introduction One of the main methods to improve the reliability of the tool is increasing the strength and wear resistance of cutting edges [1-3]. In mechanical machining the wear resistance is increased by using the methods, based on applying concentrated energy flows to the cutting part of the tool or force methods. The main requirements to the coatings include XXIIth Winter School on Continuous Media Mechanics Research on efficiency of high-strength coating during drilling V.B. Dementyev a , T.N.Ivanova a * a Federal State Budgetary Institution of Science “Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences“, Institute of Mechanics, 34, T. Baramzinoy str., Izhevsk, 426000, Russia

* Corresponding author. E-mail address: tatnic2013@yandex.ru

2452-3216 © 2021 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review unde r responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics”

2452-3216 © 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XXIIth Winter School on Continuous Media Mechanics” 10.1016/j.prostr.2021.09.041