Performance of nano-structured multilayer PVD coating TiAlN/VN in dry high speed milling of aerospace aluminium 7010-T7651

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LUO, Quanshun, ROBINSON, Gary, PITTMAN, Manfred, HOWARTH, Martin, SIM, W.M., STALLEY, M.R., LEITNER, H., EBNER, R., CALISKANOGLU, D. and HOVSEPIAN, Papken (2005). Performance of nano-structured multilayer PVD coating TiAlN/VN in dry high speed milling of aerospace aluminium 7010-T7651. Surface and Coatings Technology, 200, 123-127. [Article]

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3746:3398

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3746:3398

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Abstract

A low-friction and wear resistant TiAlN/VN multilayer coating with TiAlN/VN bilayer thickness 3 nm has been grown by using the combined cathodic arc etching and unbalanced magnetron sputtering deposition on high speed steel tools for dry cutting of aluminium alloys. In this paper, in-lab and industrial high speed milling tests have been performed on an aerospace aluminium alloy 7010-T7651. The results show that the TiAlN/VN coated tools achieved lower cutting forces, lower metal surface roughness, and significantly longer tool lifetime by three times over the uncoated tools as a result of the low friction and eliminated tool-metal adhesion. Under the same conditions, a TiAlN based multicomponent coating TiAlCrYN also increased the tool lifetime by up to 100% despite the high cutting forces measured.

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Official URL:

http://www.elsevier.com/locate/surfcoat

Research Institute, Centre or Group - Does NOT include content added after October 2018:

Materials and Engineering Research Institute > Materials Analysis and Research Services

Page Range:

123-127

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