Characteristics and Machining Performance of TiN and TiAlN Coatings on a Milling Cutter

Mohammed Sarwar, Julfikar Haider

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Titanium Nitride (TiN) coating deposited by Physical Vapour Deposition (PVD) or Chemical Vapour Deposition (CVD) techniques on cutting tools (single point or multipoint) has contributed towards the improvement of tool life, productivity and product quality [1]. Addition of Al in TiN coating (e.g., TiAlN or AlTiN) has further improved the coating properties required for machining applications [2, 3]. This work presents a comparative investigation on TiN and TiAlN coatings deposited on to a Powder Metallurgy High Speed Steel (PM HSS) milling cutter used for machining bimetal (M42+D6A) steel strips. PVD (Arc evaporation) technique was used to deposit the coatings after carefully preparing the cutting edges of the milling cutter. Microstructure, chemical composition, hardness and adhesion of the coatings have been characterised using different techniques. The incorporation of Al into TiN coating results in an improvement in hardness, wear resistance and cutting performance. Examination of the worn flank in the coated cutting edges revealed that abrasive and adhesive wear are the predominant failure mechanisms. Tool designers, coating suppliers and manufacturing engineers could benefit from the information provided.
Original languageEnglish
Pages (from-to)1005-1010
JournalAIP Conference Proceedings
Volume1315
DOIs
Publication statusPublished - 2011
EventInternational Conference on Advances in Materials and Processing Technologies (AMPT 2010) - Paris, France
Duration: 1 Jan 2011 → …

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