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Wear mechanism of coated and uncoated carbide cutting tool in machining process

Published online by Cambridge University Press:  28 December 2015

Jaharah A. Ghani ,
Che Hassan Che Haron ,
Mohd Shahir Kasim ,
Mohd Amri Sulaiman  and
Siti Haryani Tomadi
Jaharah A. Ghani*
Affiliation:
Department of Mechanical and Material Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Che Hassan Che Haron
Affiliation:
Department of Mechanical and Material Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
Mohd Shahir Kasim
Affiliation:
Department of Process, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 49100 Hang Tuah Jaya, Melaka, Malaysia
Mohd Amri Sulaiman
Affiliation:
Department of Process, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, 49100 Hang Tuah Jaya, Melaka, Malaysia
Siti Haryani Tomadi
Affiliation:
Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26300 Kuantan, Pahang, Malaysia
*
a)Address all correspondence to this author. e-mail: jaharahaghani@ukm.edu.my
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Abstract

A carbide cutting tool is widely used in machining process due to its availability and being cheaper than a better performance cutting tool, such as cubic boron nitride. The carbide cutting tool also has substantial hardness and toughness that is suitable to be applied in intermittent cutting. This paper presents the case study of a wear mechanism experienced on the cutting edge of the coated and uncoated carbide tools in turning and milling processes. The wear mechanisms of carbide cutting tools were investigated in machining Inconel 718, titanium alloy Ti–6Al–4V extra-low interstitial, and aluminum metal matrix composite (AlSi/AlN MMC) at their high cutting speed regime. The tools failed primarily due to wear on the flank and rake faces. The failure mode of the carbide cutting tools was similar regardless of the machining operations and coating is believed to enhance the tool life, but once removed, the tool fails similar to that with the uncoated tool.

Keywords

wear mechanismcarbide cutting toolmilling processturning processInconel 718Ti–6Al–4V ELIAlSi/AlN MMC
Type
Invited Articles
Information
Journal of Materials Research , Volume 31 , Issue 13: Focus Issue: Advances and Challenges in Carbon-based Tribomaterials , 14 July 2016 , pp. 1873 - 1879
Copyright
Copyright © Materials Research Society 2015 

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