Influence of the nanolayer structure of coatings on the cutting properties of tools

MATEC Web of Conferences ◽

10.1051/matecconf/202032902035 ◽

2020 ◽

Vol 329 ◽

pp. 02035

Author(s):

Marina Volosova ◽

Jury Bublikov ◽

Catherine Sotova ◽

Ilya Sadov

Keyword(s):

Brittle Fracture ◽

Tool Life ◽

Manganese Steel ◽

Wear Pattern ◽

Structure Of Coatings ◽

Nanolayer Thickness

The paper is focused on the influence of the thickness of nanolayers in the Ti-TiN-(Ti,Cr,Al)N coating on the cutting properties of the tools during the turning of 09G2S silicon-manganese steel. Coatings with the nanolayer thicknesses of 302, 70, and 16 nm were considered. The conducted studies have revealed that a tool with a coating in which the nanolayer thickness is equal to 16 nm demonstrates the longest tool life. At the same time, for such tool, the wear pattern is more balanced, and signs of brittle fracture on the coating are less pronounced. The Ti-TiN- (Ti,Cr,Al)N coating with the nanolayer thickness of 16 nm provides an increase in the tool life by 3.5 times compared to an uncoated tool and by 1.3–1.5 times compared to the tools with the Ti-TiN-(Ti,Cr,Al)N coating with thicker nanolayers.

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Influence of the thickness of nanolayers in wear-resistant layer of Ti-TiN-(Ti,Cr,Al)N coating on the tool life and wear pattern of the carbide cutting tools in steel turning

Procedia CIRP ◽

10.1016/j.procir.2021.02.027 ◽

2021 ◽

Vol 101 ◽

pp. 262-265

Author(s):

Alexey Vereschaka ◽

Marina Volosova ◽

Nikolay Sitnikov ◽

Filipp Milovich ◽

Nikolay Andreev ◽

...

Keyword(s):

Tool Life ◽

Cutting Tools ◽

Wear Resistant ◽

Wear Pattern ◽

Steel Turning ◽

Resistant Layer

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Metal Low Temperature Brittleness and Low Temperature Machining

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.79.288 ◽

2011 ◽

Vol 79 ◽

pp. 288-292

Author(s):

Li Hong Liu ◽

Han Bing Cao ◽

Zhan Ni Li

Keyword(s):

Low Temperature ◽

Brittle Fracture ◽

Surface Quality ◽

Tool Life ◽

Nominal Stress ◽

Yield Limit ◽

Test Results ◽

Workpiece Surface ◽

Metal Materials

Most metal materials tend to produce brittle fracture at low temperature. Nominal stress of producing brittle fracture is low, generally lower than yield limit. By use of this property, the machinability of the workpiece, tool life and workpiece surface quality can be improved. Classification and application of low temperature machining was introduced in the paper. Tests of low temperature machining were carried out. The test results show low temperature machining is superior to the cutting in normal temperature for the aspects of tool life and the roughness of workpiece surface.

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