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

SURFACE & COATINGS TECHNOLOGY

卷:200

Article; Proceedings Paper

Luo, Q ; Robinson, G ; Pittman, M ; Howarth, M ; Sim, WM ; Stalley, MR ; Leitner, H ; Ebner, R ; Caliskanoglu, D ; Hovsepian, PE

关键词: TiAlNfVN;    TiAlCrYN;    aluminium alloy;    nano-structured multilayer;    high speed milling;   

DOI  :  10.1016/j.surfcoat.2005.02.017

来源: Elsevier

【 摘 要 】

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. (c) 2005 Published by Elsevier B.V.

【 授权许可】

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