Micromachining M2 tool steel using nanostructured titanium-doped cutting tools
by Mark J. Jackson, Grant M. Robinson, Waqar Ahmed, Christopher A. Rego, Wolf-Dieter Munz
International Journal of Nanomanufacturing (IJNM), Vol. 1, No. 3, 2007

Abstract: Cation-substituted Ti_l-x-y-zAl_xCr_yY₂N alloys, with y = 0.03 and z = 0.02, have been shown to offer enhanced high-temperature oxidation resistance compared to presently used TiN and Ti_l-xAl_xN films. Layers (3 µm thickness) were deposited by unbalanced magnetron sputter deposition to small grain WC-Co unused cutting tools which had been ion etched in situ using a steered Cr-metal-ion cathodic arc discharge at an Ar pressure of 6 × 10^-4 mbar (0.45 mTorr). Machining experiments conducted at the meso and micro scales indicated that cutting tool life is improved significantly using yttrium-doped titanium-based coatings when machining M2 tool steel.

Online publication date: Fri, 11-May-2007

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