Influence of Solid Lubricants on the Working Efficiency of a Coated-Carbide Cutting Tool under Interrupted Cutting Conditions

2019 ◽  
Vol 973 ◽  
pp. 96-100
Author(s):  
Vladimir A. Solodkov ◽  
Sergey I. Kormilitsin ◽  
Aleksandr I. Kurchenko
Keyword(s):  
Cutting Tool ◽  
Solid Lubricants ◽  
Cutting Conditions ◽  
Refractory Coating ◽  
Carbide Cutting Tool ◽  
Resistant Refractory ◽  
Interrupted Cutting ◽  
Coated Carbide ◽  
Working Efficiency

In order to increase the working efficiency of coated-carbide cutting tool under interrupted cutting conditions it is most efficient to use abrasion resistant refractory coating and solid lubricants.

Wear Behavior of Multilayer Nanocomposite TiAlSiN/TiSiN/TiAlN Coated Carbide Cutting Tool during Face Milling of Inconel 718 Superalloy

2017 ◽  
Vol 47 ◽  
pp. 11-16 ◽  
Author(s):  
Bilal Kursuncu ◽  
Halil Caliskan ◽  
Sevki Yilmaz Guven ◽  
Peter Panjan
Keyword(s):  
Tool Life ◽  
Inconel 718 ◽  
Cutting Tool ◽  
Elevated Temperatures ◽  
Wear Behavior ◽  
Cutting Tools ◽  
Face Milling ◽  
Carbide Cutting Tool ◽  
Inconel 718 Superalloy ◽  
Coated Carbide

The Inconel 718 superalloy is one of the most-used nickel based superalloys in the aerospace industry due to its superior mechanical properties, for instance, high thermal and chemical resistance, and high strength at elevated temperatures. However, the work hardening tendency, low thermal conductivity and high hardness of this superalloy cause early tool wear, leading to the material to be called as a hard-to-cut material. Therefore, deposition of a wear resistant hard coating on carbide cutting tools has a critical importance for longer tool life in milling operations of the Inconel 718 superalloy. In this study, carbide cutting tools were coated with multilayer nanocomposite TiAlSiN/TiSiN/TiAlN coating using the magnetron sputtering technique, and wear behavior of the coated tool was investigated during face milling of the Inconel 718 superalloy under dry conditions. Abrasive and adhesive wear mechanisms were founded as main failure mechanisms. The nanocomposite TiAlSiN/TiSiN/TiAlN coated carbide cutting tool gave better wear resistance, and thus it provided 1.7 times longer tool life and a smoother surface (Ra<0.18 μm) on the Inconel 718 material than the uncoated one.

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