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Effect of TiAIN-based Nanoscale Multilayered Coating on the Cutting Performance of WC-Co Insert  

Lim Hee-Youl (Department of Ceramic Engineering, Yonsei University, Thin Film Materials Research Center, Korea Institute of Science and Technology)
Park Jong-Keuk (Thin Film Materials Research Center, Korea Institute of Science and Technology)
Kim Kyung-Bae (Production Engineering Research Center, KORLORY Inc.,)
Choi Doo-Jin (Department of Ceramic Engineering, Yonsei University)
Baik Young-Joon (Future Technology Research Division, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Vacuum Society / v.15, no.1, 2006 , pp. 110-116 More about this Journal
Abstract
The mechanical property and cutting performance of the cutting tools coated with nanoscale nyktukatered nitride film have been investigated. $Ti_{0.54}Al_{0.46}N-CrN$ and $Ti_{0.84}Al_{0.16}N-NlN$ systems, which showed super-lattice in nanoscale multilayered coating, were deposited on WC-Co insert by UBM sputtering, The superlattice coatings with different bilayer periods were manufactured by controlling deposition parameters. The superlattice formation and hardness of the nanoscale multilayered nitride film and the cutting performance of the insert coated with the film were examined. The hardness and cutting performance were dependent on the bilayer periods of the coatings. The flank wear of the inserts with superlattice coatings were decreased over $20\%$, compared to those of commonly used cutting tools coated with TiAIN single phase.
Keywords
TiAlN; Nanoscale-multilayer; Superlattice; Hardness; Cutting performance;
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