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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/15194

Title: Laser stripping of TiAlN coating to facilitate reuse of cutting tools
Authors: Marimuthu, Sundar
Kamara, A.M.
Whitehead, D.
Mativenga, P.
Li, Lin
Yang, S.
Cooke, K.
Keywords: Laser ablation
Laser decoating
Selective coating removal
TiAlN
Issue Date: 2011
Publisher: Sage Publications on behalf of the Institution of Mechanical Engineers
Citation: MARIMUTHU, S. ... et al, 2011. Laser stripping of TiAlN coating to facilitate reuse of cutting tools. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 225 (B10), pp. 1851 - 1862.
Abstract: The potential of using the laser ablation process to perform controlled stripping of titanium aluminium nitrite (TiAlN) coating from tungsten carbide (WC) substrate is explored in this paper. TiAlN coatings are extensively used in cutting tools to improve machining capability, and to extend the life of the tools. However, if any error is detected on the coated tools, or when the tooling needs to be reused, it is mandatory to remove the existing coating to facilitate reshaping/recoating. The existing coating removal process uses chemical stripping methods, which are not environmentally friendly and not suitable for selective coating removal. In the present work, excimer laser removal of TiAlN from coated WC flat plates has been studied and demonstrated as a viable alternative to existing chemical stripping methods. The ablation thresholds of the TiAlN coating and WC substrate were identified as 1.85 J/cm2 and 2.3 J/cm2 respectively. The paper also presents experimental and theoretical evidence of the process mechanism responsible for laser stripping of TiAlN coatings
Description: This article is closed access.
Version: Published
DOI: 10.1177/0954405411414313
URI: https://dspace.lboro.ac.uk/2134/15194
Publisher Link: http://dx.doi.org/10.1177/0954405411414313
ISSN: 0954-4054
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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