Nano-scale multilayered-composite coatings for the cutting tools

2014 ◽  
Vol 72 (1-4) ◽  
pp. 303-317 ◽  
Author(s):  
A. A. Vereshchaka ◽  
A. S. Vereshchaka ◽  
O. Mgaloblishvili ◽  
M. N. Morgan ◽  
A. D. Batako
Keyword(s):  
Composite Coatings ◽  
Cutting Tools ◽  
Nano Scale ◽  
Multilayered Composite

scholarly journals Nano-scale Multilayered Composite Coatings for Cutting Tools Operating under Heavy Cutting Conditions

Procedia CIRP ◽  
2014 ◽  
Vol 14 ◽  
pp. 239-244 ◽  
Author(s):  
A.A. Vereschaka ◽  
S.N. Grigoriev ◽  
A.S. Vereschaka ◽  
A.Yu. Popov ◽  
A.D. Batako
Keyword(s):  
Composite Coatings ◽  
Cutting Tools ◽  
Cutting Conditions ◽  
Nano Scale ◽  
Multilayered Composite ◽  
Coatings For Cutting Tools

scholarly journals Improvement of structure and quality of nanoscale multilayered composite coatings, deposited by filtered cathodic vacuum arc deposition method

2016 ◽  
Vol 7 ◽  
pp. 184798041668080 ◽  
Author(s):  
Alexey A Vereschaka ◽  
Anatoly S Vereschaka ◽  
Andre DL Batako ◽  
Boris J Mokritskii ◽  
Anatoliy Y Aksenenko ◽  
...  
Keyword(s):  
Composite Coating ◽  
Surface Defects ◽  
Composite Coatings ◽  
Cutting Tools ◽  
Vacuum Arc ◽  
Multilayered Composite ◽  
Vacuum Arc Deposition ◽  
Filtered Cathodic Vacuum Arc ◽  
Longitudinal Turning ◽  
Arc Deposition

This article studies the specific features of cathode vacuum arc deposition of coatings used in the production of cutting tools. The detailed analysis of the major drawbacks of arc-Physical Vapour Deposition (PVD) methods has contributed to the development of the processes of filtered cathodic vacuum arc deposition to form nanoscale multilayered composite coatings of increased efficiency. This is achieved through the formation of nanostructure, increase in strength of adhesion of coating to substrate up to 20%, and reduction of such dangerous coating surface defects as macro- and microdroplets up to 80%. This article presents the results of the studies of various properties of developed nanoscale multilayered composite coating. The certification tests of carbide tool equipped with cutting inserts with developed nanoscale multilayered composite coating compositions in longitudinal turning (continuous cutting) and end symmetric milling, and intermittent cutting of steel C45 and hard-to-cut nickel alloy of NiCr20TiAl showed advantages of tool with nanoscale multilayered composite coating as compared to the tool without coating. The lifetime of the carbide inserts with developed NMCC based on the system of Ti–TiN–(NbZrTiCr)N (filtered cathodic vacuum arc deposition) was increased up to 5–6 times in comparison with the control tools without coatings and up to 1.5–2.0 times in comparison with nanoscale multilayered composite coating based on the system of Ti–TiN–(NbZrTiCr)N (standard arc-PVD technology).

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

2018 ◽  
Vol 19 (6) ◽  
pp. 606
Author(s):  
Alexey Vereschaka ◽  
Boris Mokritskii ◽  
Alexey Krapostin ◽  
Nikolay Sitnikov ◽  
Gaik Oganyan
Keyword(s):  
Composite Coatings ◽  
Cutting Tools ◽  
Ceramic Tool ◽  
Tool Failure ◽  
Hardened Steels ◽  
Ion Flow ◽  
Automated Production ◽  
Ceramic Tools ◽  
Multilayered Composite ◽  
Cutting Ceramic

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.

scholarly journals Tribological properties of ion-modified composite coatings

2021 ◽  
Vol 2059 (1) ◽  
pp. 012015
Author(s):  
M Sh Migranov ◽  
A M Migranov ◽  
S R Shekhtman
Keyword(s):  
Wear Resistance ◽  
Tool Life ◽  
High Speed ◽  
Composite Coatings ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Hard Coating ◽  
Ion Nitriding ◽  
Additional Layer ◽  
Nitrided Surface

Abstract The paper presents the results of a study of one of the ways to increase the wear resistance of “duplex” coatings applied to cutting tools, which are due to preliminary diffusion saturation of the tool surface with nitrogen (known as ion nitriding) followed by physical deposition of a hard coating (Ti, Cr) N. The proposed coating also contains an additional layer with an impurity of ions, deposited on a preliminary nitrided surface of high speed steel before the deposition of a hard coating. Tests were carried out to evaluate the effect of these modified layers on the tool life of the HSS tool. The greatest wear resistance after "triplex" - treatment was achieved during ion implantation of titanium into a pre-nitrided surface. The coefficient of friction of the modified layer was studied at different contact temperatures. Ionic mixing contributes to the appearance of a thin surface layer with an amorphous-like structure, which prolongs the stage of normal wear, which significantly increases the tool life as a result of the self-organization process.

scholarly journals A Review on Some Effects of the Electrolytic Deposited Zinc Oxide Multilayered Composite Coatings on Mild Steel

2019 ◽  
Vol 1378 ◽  
pp. 042052
Author(s):  
O. P Abioye ◽  
G. P Gaiya ◽  
O. S. I Fayomi ◽  
C. A Loto ◽  
A. J Musa
Keyword(s):  
Zinc Oxide ◽  
Mild Steel ◽  
Composite Coatings ◽  
Multilayered Composite

scholarly journals Cutting Tools Made of Layered Composite Ceramics with Nano-Scale Multilayered Coatings

Procedia CIRP ◽  
2012 ◽  
Vol 1 ◽  
pp. 301-306 ◽  
Author(s):  
Sergej N. Grigoriev ◽  
A.A. Vereschaka ◽  
A.S. Vereschaka ◽  
A.A. Kutin
Keyword(s):  
Cutting Tools ◽  
Layered Composite ◽  
Composite Ceramics ◽  
Multilayered Coatings ◽  
Nano Scale

Control of Structure and Properties of Nanostructured Multilayer Composite Coatings Applied to Cutting Tools as a Way to Improve Efficiency of Technological Cutting Operations

2015 ◽  
Vol 37 ◽  
pp. 51-57 ◽  
Author(s):  
Anatoliy Stepanovich Vereschaka ◽  
Alexey Anatolevich Vereschaka ◽  
D.V. Sladkov ◽  
A.Yu. Aksenenko ◽  
N.N. Sitnikov
Keyword(s):  
Composite Coatings ◽  
Cutting Tools ◽  
Nitrogen Pressure ◽  
Lattice Parameter ◽  
Vacuum Arc ◽  
Structures And Properties ◽  
Arc Current ◽  
Coating Synthesis ◽  
Cathode Arc ◽  
Filtered Cathodic Vacuum Arc

The study considers the challenge of improving the efficiency of dry finishing and semi-finishing turning of (P10-P20) steel with carbide tools with complex composition coatings by directed selection of the composition and properties of the coatings through the control of the parameters of the filtered cathodic vacuum-arc deposition (FCVAD). The conducted tests have confirmed the feasibility and effectiveness of the control of compositions, structures, and properties of complex composite coatings of Ti-TiN-TiAlN type by varying the parameters of the FCVAD process. In particular, it has been found out that the ratio of Ti/Al, which greatly affects the important properties of the coating (grain size, lattice parameter, microhardness, fracture toughness, etc.), can be changed at constant compositions of cathodes by varying such parameters of coating synthesis as titanium cathode arc current, nitrogen pressure, and substrate shear stress. It has been shown that Ti-TiN-TiAlN coating produced at different values of the parameters of synthesis significantly changes the cutting properties of carbide tool and thus allows optimizing the coating composition for a variety of machining conditions.The developed methods are also applicable for multi-component complex composite coatings.

Development of Assisted Filtered Cathodic Vacuum Arc Deposition of Nano-Dispersed Multi-Layered Composite Coatings on Cutting Tools

2013 ◽  
Vol 581 ◽  
pp. 62-67 ◽  
Author(s):  
Alexey Anatolevich Vereschaka
Keyword(s):  
Composite Coatings ◽  
Cutting Tools ◽  
High Energy ◽  
Layered Composite ◽  
Vacuum Arc ◽  
Wide Range ◽  
High Energy Ions ◽  
Vacuum Arc Deposition ◽  
Filtered Cathodic Vacuum Arc ◽  
Tool Types

This paper presents the results of development and application of processes for modification of various properties of working surfaces of cutting tools by condensing vapor and ion flows in assisting impulse or constant exposure to high-energy ions. The paper shows features of the technology and equipment for the formation of wear-resistant components, which modify the structure and properties of working surfaces of various edge cutting tool types in a wide range of temperatures, in order to improve tool life and reliability. Various properties of the modifying components were studied, and their ability to improve the operational efficiency of different types of carbide cutting tools for cutting various materials was shown.

scholarly journals Nanostructured Multilayer Composite Coatings for Cutting Tools

2020 ◽  
Author(s):  
Sergey Grigoriev ◽  
Alexey Vereschaka ◽  
Marina Volosova ◽  
Caterina Sotova ◽  
Nikolay Sitnikov ◽  
...  
Keyword(s):  
Composite Coatings ◽  
Cutting Tools ◽  
Theoretical Background ◽  
Multilayer Composite ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Ceramic Tools ◽  
Operation Conditions ◽  
Resistant Layer ◽  
Nanostructured Multilayer Composite Coatings

The chapter deals with the specific features concerning the application of wear-resistant coatings to improve the performance properties of ceramic cutting tools. The paper discusses the theoretical background associated with the specific operation conditions and wear of ceramic cutting tools and influencing the choice of the compositions and structures of wear-resistant coatings. The studies were focused on the application of the Ti-(Ti,Al)N-(Zr,Nb,Ti,Al)N multilayer composite coating with a nanostructured wear-resistant layer, as well as the (Cr,Al,Si)N–(DLC–Si)–DLC–(DLC–Si) and (Cr,Al,Si)N–DLC composite coatings in order to improve the cutting properties of ceramic tools. The chapter presents the results of the comparative cutting tests for the tools with the coatings under study, uncoated tools, and tools with the Ti-(Ti,Al)N commercial coating. The wear mechanisms typical for ceramic cutting tools with coatings of various compositions have been investigated.

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