Influence of Thickness of Multilayer Composite Nano-structured Coatings on Tool Life of Metal-Cutting Tool
Moscow State Technological University “STANKIN”, RU-127055, Moscow, Russia
2 National Research Nuclear University MEPhI, RU-115409, Moscow, Russia
3 IKTI RAN, RU-127055, Moscow, Russia
4 Liverpool John Moores University, Liverpool, United Kingdom
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Published online: 9 December 2019
The paper is focused on turning of structural steels C45. Cutting tools were represented by carbide cutting inserts without coatings, with reference coating TiAlN, as well as with multilayered composite nano-structured coatings Ti-TiN-(TiCrAl)N and Zr-ZrN-(ZrCrNbAl)N (of different thickness of 3-7 μm). The following studies of the properties of coated tools were carried out: measurement of microhardness and strength of adhesion bonds in the “tool-coating” system and investigation of elemental and phase compositions of coatings. The cutting tests were carried out at the following cutting modes: f = 0.2 mm/rev; аp = 1.0 mm; vc = 200, 250, 300, 350 and 400 m/min.
© The Authors, published by EDP Sciences, 2019
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