Tribomechanical behavior of TiCN/TiAlN/WC-C multilayer film on cutting tool inserts for machining
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Chinnasamy Moganapriya
, Rathanasamy Rajasekar , Kannayiram Ponappa , Rangasamy Karthick , Ramamoorthy Venkatesh Perundurai , Palaniappan Sathish Kumar and Samir Kumar Pal
Abstract
Condition of cutting tool determines the quality of machining operation performed on a material. Wear is the main phenomenon that deteriorates the tool life and indeed affects the quality of machined products. The research work deals with enhancing the wear resistance of tungsten carbide (WC) tool by mono- and multilayered film coating. The following WC-C/TiAlN/TiCN multilayered thin films were deposited on the surface of WC cutting tool insert using cathodic arc evaporation process. For comparison, monolayer TiAlN, TiCN and bilayer TiAlN/WC-C coatings were also prepared. Microhardness, surface roughness, wear behavior, frictional coefficient of uncoated and coated specimens were analyzed using Knoop & Vickers hardness tester, surface roughness tester, pin-on-disk wear tester, respectively. Multilayer coating comprising WC-C/TiAlN/TiCN exhibited lower friction coefficient, lower wear loss and higher hardness (25.83 GPa) compared to other thin film layered specimen and pure substrate (WC) owing to the presence of multilayer and hard layer. TiCN/TiAlN/WC-C multilayer coating exhibits lower coefficient of friction (COF) at a higher load (15 N) running for long distances (1900 m).
Kurzfassung
Der Zustand des Schneidwerkzeuges beeinflusst die Qualität der maschinellen Bearbeitung eines Werkstoffes. Verscheiß ist das Hauptphänomen, das die Lebensdauer eines Werkzeuges herabsetzt und tatsächlich die Qualität der bearbeiteten Produkte beeinflusst. Die diesem Beitrag zugrundeliegende Forschungsarbeit beschäftigt sich mit der Verbesserung des Verschleißwiderstandes eines Werkzeuges aus Wolframcarbid (WC) durch einfache und mehrfache Beschichtungen. Die WC-C/TiAlN/TiCN-Mehrfachschichten wurden auf die Oberfläche der WC-Schneidplatten mittels des kathodischen Lichtbogenverdampfungsprozesses aufgebracht. Zum Vergleich wurden außerdem einfache TiAlN- und TiCN-Schichten sowie zweifache TiAlN/WC-C-Schichten hergestellt. Die Mikrohärte, die Oberflächenrauheit, das Verschleißverhalten und der Reibkoeffizient wurden mittels eines Knoop & Vickers Härteprüfers, eines Oberflächenrauheitsmessgerätes sowie eines Stift-Scheibe-Verschleißprüfgerätes analysiert. Die Mehrfachschichten aus WC-C/TiAlN/TiCN zeigten im Vergleich zu den anderen Dünnschichtproben sowie dem reinen Substrat (WC) einen niedrigeren Reibkoeffizient, einen geringeren Verschleißverlust und eine höhere Härte (25.83 GPa), was auf den positiven Einfluss der harten Mehrfachschicht zurückzuführen ist. Die TiCN/TiAlN/WC-C-Mehrfachschicht zeigt einen niedrigeren Reibkoeffizient bei einer höheren Last (15 N) und über längere Distanzen (1900 m).
References
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© 2017, Carl Hanser Verlag, München
Articles in the same Issue
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Micro-CT defect analysis and hardness distribution of flat-face extruded EN AW6060 aluminum chips
- Confirmation of tensile residual stress reduction in electron beam welding using low transformation temperature materials (LTT) as localized metallurgical injections – Part 2: Residual stress measurement
- Distribution functions for the linear region of the S-N curve
- Uncertainty of strain release coefficients for the blind-hole procedure evaluated by Monte Carlo simulation
- Influence of welding conditions on crack opening displacements in welded CT specimens
- Microstructure characterization and corrosion testing of MAG pulsed duplex stainless steel welds
- Conventional sintering behavior of matrix materials used for diamond beads
- Acoustic emission by steel fiber reinforced concrete under tensile damage
- Investigations on multi-run metal made of HSLA steel – Heterogeneous microstructure and mechanical properties
- Design of utility tools and their application for testing mechanical properties of metallic materials
- Improvement of the sacrificial behavior of zinc in scratches of zinc-rich polymer coatings by incorporating clay nanosheets
- Influence of geometric design variables on the efficiency of the high energy horizontal chromite type ball milling process
- ANN evaluation of bearing strength on pin loaded composite plates in different environmental conditions
- Tribomechanical behavior of TiCN/TiAlN/WC-C multilayer film on cutting tool inserts for machining
- Preparation and mechanical properties of nano-quartz fiber filled PMMA composites
Articles in the same Issue
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Micro-CT defect analysis and hardness distribution of flat-face extruded EN AW6060 aluminum chips
- Confirmation of tensile residual stress reduction in electron beam welding using low transformation temperature materials (LTT) as localized metallurgical injections – Part 2: Residual stress measurement
- Distribution functions for the linear region of the S-N curve
- Uncertainty of strain release coefficients for the blind-hole procedure evaluated by Monte Carlo simulation
- Influence of welding conditions on crack opening displacements in welded CT specimens
- Microstructure characterization and corrosion testing of MAG pulsed duplex stainless steel welds
- Conventional sintering behavior of matrix materials used for diamond beads
- Acoustic emission by steel fiber reinforced concrete under tensile damage
- Investigations on multi-run metal made of HSLA steel – Heterogeneous microstructure and mechanical properties
- Design of utility tools and their application for testing mechanical properties of metallic materials
- Improvement of the sacrificial behavior of zinc in scratches of zinc-rich polymer coatings by incorporating clay nanosheets
- Influence of geometric design variables on the efficiency of the high energy horizontal chromite type ball milling process
- ANN evaluation of bearing strength on pin loaded composite plates in different environmental conditions
- Tribomechanical behavior of TiCN/TiAlN/WC-C multilayer film on cutting tool inserts for machining
- Preparation and mechanical properties of nano-quartz fiber filled PMMA composites