Evaluation of wear mechanisms of coated carbide tools when face milling titanium alloy

Powder metallurgy (PM) nickel-based superalloy is regarded as one of the most important aerospace industry materials, which has been widely used in advanced turbo-engines. This work presents an orthogonal design experiments to study the cutting force and cutting temperature variations in the face milling of PM nickel-based superalloy with PVD coated carbide tools. Experimental results show that with the increase of feed rate and depth of cut, there is a growing tendency in cutting force, with the increase of cutting speed, cutting force decreases. Among the cutting parameters, feed rate has the greatest influence on cutting force, especially when cutting speed exceeds 60m/min. With the increase of all the cutting parameters, cutting temperature increases. However the cutting temperature increases slightly as the increasing of feed rate. Tool failure mechanisms in face milling of PM nickel-based superalloy are analyzed. It is shown that the breakage and spalling on the cutting edge are the most dominate failure mechanisms, which dominates the deterioration and final failure of the coated carbide tools.

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Wear Behavior of PVD and CVD Coated Carbide Tools when Face Milling Inconel 718

Tribology Transactions ◽

10.1080/10402000008982347 ◽

2000 ◽

Vol 43 (2) ◽

pp. 325-331 ◽

Cited By ~ 19

Author(s):

A. Jawaid ◽

S. Koksal ◽

S. Sharif

Keyword(s):

Inconel 718 ◽

Wear Behavior ◽

Face Milling ◽

Coated Carbide ◽

Coated Carbide Tools

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Wear mechanisms of coated carbide tools

Metals Technology ◽

10.1179/030716982803285909 ◽

1982 ◽

Vol 9 (1) ◽

pp. 60-75 ◽

Cited By ~ 101

Author(s):

P. A. Dearnley ◽

E. M. Trent

Keyword(s):

Wear Mechanisms ◽

Coated Carbide ◽

Coated Carbide Tools

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Microstructure Induced Wear Mechanisms of PVD-Coated Carbide Tools during Dry Drilling of Newly Produced ADI

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.651-653.1271 ◽

2015 ◽

Vol 651-653 ◽

pp. 1271-1276 ◽

Cited By ~ 1

Author(s):

Anil Meena ◽

Mohamed El Mansori

Keyword(s):

Wear Mechanisms ◽

Cutting Tools ◽

Experimental Studies ◽

Cutting Speed ◽

Microstructural Characteristics ◽

Machine Material ◽

Dry Drilling ◽

Wear Mode ◽

Coated Carbide ◽

Coated Carbide Tools

Near-net shape austempered ductile iron (ADI) castings can be considered as a significant economic advantage to the increasing industrial demand for cost and weight efficient materials. However, due to microstructure induced inherent properties, ADI is considered as hard to machine material. The present paper thus investigates the interaction between the microstructural characteristics of ADI and wear mechanisms of PVD-coated carbide tools. The inherent properties of ADI materials are the function of its microstructural characteristics (retained austenite volume content and its carbon content, ferritic cell size, etc.) which can be controlled by the austempering parameters. Experimental studies of dry drilling of different ADI materials with the PVD-coated carbide tools were carried out at a cutting speed of 60 m/min and at a feed of 0.15 mm/rev. The wear mechanisms of the cutting tools were studied by using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analysis techniques. The obtain results revealed the evolution of crater wear as the main wear mode. In addition, it provides the key findings aims to correlating the machining characteristics of ADI with its microstructure and production conditions.

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