The main objective of this work was to assess and compare the structure mechanical properties TiN TiAlN coatings deposited on a new WC-Co tool using cathodic arc evaporation vacuum deposition (CAE-PVD) technique. cutting sintered at high temperature pressure powder tungsten carbide matrix ligated with cobalt (WC-Co). Powdered grain growth inhibitors (TiC, TaC, NbC) were admixed into enhance its...