Selection of advanced coating on a milling cutter used for manufacturing saw teeth

Haider, Julfikar and Sarwar, Mohammed (2012) Selection of advanced coating on a milling cutter used for manufacturing saw teeth. International Journal of Surface Science and Engineering, 6 (1/2). pp. 45-58. ISSN 1749-785X

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Abstract

It is well established that titanium based hard coatings (e.g., TiN, TiAlN) can significantly improve the performance and life of cutting tools. More recently, AlCrN coating has been investigated for cutting tool applications in order to improve the tool performance over the titanium-based coatings. The current investigation has been carried out with an aim to compare the performance of TiAlN and AlCrN coatings on a high speed steel milling cutter. A multi-flute cylindrical cutter was coated half of its length with TiAlN coating and the other half with AlCrN coating using cathodic arc deposition technique. The machining test was carried out with the coated cutter in a production environment, where saw teeth were manufactured by milling process. On average, AlCrN coated teeth showed 16% higher flank wear compared to TiAlN coated teeth. Notch wear was also found to be slightly higher in AlCrN coated teeth. The investigation of the worn teeth revealed that abrasive and adhesive wear were predominant in presence of built-up edge (BUE) formation. However, BUE formation was more prominent in AlCrN coated teeth.

Item Type:	Article
Uncontrolled Keywords:	wear mode, wear mechanism, cutting tools, TiAlN, AlCrN
Subjects:	H300 Mechanical Engineering H700 Production and Manufacturing Engineering H900 Others in Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Sarah Howells
Date Deposited:	25 Sep 2012 11:42
Last Modified:	12 Oct 2019 19:07
URI:	http://nrl.northumbria.ac.uk/id/eprint/9173

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