Depósito de TiN sobre herramientas de corte para uso industrial

Abstract

TiN coatings on stainless steel blades for glass fibre cutting have been investigated in this work. The aim was to improve their mechanical properties and increase the too] time life, decreasing in this way the production stops. Reactive magnetron sputtering has been the deposition technique. TiN films chemical composition has been determined by AES (Auger Electron Spectroscopy), RBS (Rutherford Backscattering Spectroscopy) and XANES (X-Ray Spectroscopy Near the Absorption Edge), and it has been correlated to the gas mixture composition in the vacuum chamber. Crystalline structure has been determined by X-Ray Diffraction, and the films morphology has been observed by SEM (Scanning Electron Microscopy). The hardness coating has been extracted from nanoindentation measurements, giving a 21.54 +/- 1.04 GPa hardness value, typical for TiN in the literature. Factory proofs for coated cutting blades show a 67\%, lifetime increase.