Wear behavior of multilayer coated carbide tools in finish dry hard turning
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Ahmet Cakan
Abstract
The aim of this study is to explore wear behaviors of carbide tools with a multilayer TiCN + Al2O3 + TiN coating on AISI-4340 and AISI-52100 hardened steel substrates generated by the medium temperature chemical vapor deposition (MTCVD) method in finish dry hard turning. Microscopic and microstructural wear aspects of multilayer-coated carbide tips were quantified at three cutting speeds using a constant feed rate of 0.027 mm × rev−1 and a constant cutting depth of 0.2 mm. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to investigate worn tool surfaces, wear products and wear mechanisms. Wear mechanisms observed involved abrasion, adhesion, plastic flow, material transfer and tribochemical effects depending on mechanical and thermal conditions generated on the wear zones. Transfer layer formation with different morphologies was distinguished to occur at the rake-chip interface.
Kurzfassung
Das Ziel der diesem Beitrag zugrunde liegenden Studie besteht darin, das Verschleißverhalten von Carbidwerkzeugen mit einer mehrlagigen TiCN + Al2O3 + TiN Schicht, die mittels der chemischen Dampfablagerung bei mittleren Temperaturen (Medium Temperature Chemical Vapor Deposition (MTCVD)) auf gehärtete Substrate aus den Stählen AISI-4340 and AISI-52100 aufgebracht wurde, beim trockenen Endhartdrehen zu erforschen. Hierzu wurden die mikroskopischen und mikrostrukturellen Verschleißaspekte von mehrlagenbeschichteten Carbidspitzen bei drei verschiedenen Schnittgeschwindigkeiten quantifiziert, wobei eine konstante Vorschubrate von 0,027 m × min−1 und eine konstante Schnitttiefe von 0,2 mm eingestellt wurden. Es wurden Rasterelektronenmikroskopie und EDS eingesetzt, um die verschlissenen Werkstückoberflächen, die Verschleißprodukte und die Verschleißmechanismen zu untersuchen. Die beobachteten Verschleißmechanismen schlossen Abrasion, Adhäsion, plastisches Fließen, Materialübergang und tribochemische Effekte, abhängig von den in den Verschleißzonen generierten mechanischen und thermischen Bedingungen, ein. Es konnte die Bildung von Übergangslagen mit verschiedenen Morphologien unterschieden werden, die an der Grenzfläche zwischen Span und Werkzeug auftraten.
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© 2016, Carl Hanser Verlag, München
Artikel in diesem Heft
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Application of micro-magnetic testing systems for non-destructive analysis of wear progress in case-hardened 16MnCr5 gear wheels
- Weldability of duplex stainless steels with and without Cu/Ni interlayer using plasma arc welding
- TIG deposition of Ti on steel substrates using Cu as interlayer
- Examinations of casting cracks in a high alloy steel valve
- Analyzing the diffusion weldability of copper and porcelain
- Torsional behavior of a friction welded martensitic stainless steel
- Effects of different wire chemical compositions on the mechanical and microstructural characteristics of copper brazing joints
- Effect of Al addition on microstructure and properties of an Fe-B-Al alloy
- Inspection of domestic nuclear fuel rods using neutron radiography at the Tehran Research Reactor
- Strain measurement in concrete using embedded carbon roving-based sensors
- Wear behavior of multilayer coated carbide tools in finish dry hard turning
- Characteristics of austenitic stainless steel T-joints welded using the DMAG process with solid wire
- Application of the Taguchi method for surface roughness predictions in the turning process
- Experimental failure testing and repair of internal pressurized composite pipes using different fracture models
- Investigation of material removal rate (MRR) and wire wear ratio (WWR) for alloy Ti6Al4 V exposed to heat treatment processing in WEDM and optimization of parameters using Grey relational analysis
Artikel in diesem Heft
- Inhalt/Contents
- Contents
- Fachbeiträge/Technical Contributions
- Application of micro-magnetic testing systems for non-destructive analysis of wear progress in case-hardened 16MnCr5 gear wheels
- Weldability of duplex stainless steels with and without Cu/Ni interlayer using plasma arc welding
- TIG deposition of Ti on steel substrates using Cu as interlayer
- Examinations of casting cracks in a high alloy steel valve
- Analyzing the diffusion weldability of copper and porcelain
- Torsional behavior of a friction welded martensitic stainless steel
- Effects of different wire chemical compositions on the mechanical and microstructural characteristics of copper brazing joints
- Effect of Al addition on microstructure and properties of an Fe-B-Al alloy
- Inspection of domestic nuclear fuel rods using neutron radiography at the Tehran Research Reactor
- Strain measurement in concrete using embedded carbon roving-based sensors
- Wear behavior of multilayer coated carbide tools in finish dry hard turning
- Characteristics of austenitic stainless steel T-joints welded using the DMAG process with solid wire
- Application of the Taguchi method for surface roughness predictions in the turning process
- Experimental failure testing and repair of internal pressurized composite pipes using different fracture models
- Investigation of material removal rate (MRR) and wire wear ratio (WWR) for alloy Ti6Al4 V exposed to heat treatment processing in WEDM and optimization of parameters using Grey relational analysis
