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Wear Mechanism of PVD TiAlN Coated Cemented Carbide Tool in Dry Turning Titanium Alloy TC4

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Abstract:

This paper presents investigations on turning TC4 alloy with PVD TiAlN coated cemented carbide inserts. The turning test was conducted with variable cutting speeds ranging from 80 to 120 m/min. Wear surfaces of the cutting tools are analyzed to study the wear mechanism of PVD TiAlN coated cemented carbide tools in turning of titanium alloy TC4. Scanning Electron Microscope (SEM) and Energy Dispersive Spectrometer( EDS) analyses by wear maps indicated that the wear of coated cemented carbide tools was caused by adhesion, coating delamination and mechanical fatigue. The analysis of EDS indicated no oxidation wear generated during the machining. The excellent chemical stability and oxidation resistance performance of TiAlN coating made contribution to prevent oxidation wear.

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Info:

Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

2200-2204

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.2200

Citation:

Cite this paper

Online since:

January 2013

Authors:

Bao Lin Wang, Xing Ai, Zhan Qiang Liu, Ji Gang Liu

Keywords:

Cemented Carbide Tools, PVD, TC4, TiAlN, Titanium Alloy, Wear Mechanism

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