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A new laboratory evaluation method for the coating blade was developed,and the tribological properties of coating blades with different Ti-based coatings were studied by UMT-2 tribometer.Comparison between the areas of scratches before and after the cutting experiment was used to evaluate the cutting performance of the blades.Results showed that friction coefficient of TiAlCrN/TiAlN coating was significantly lower than that of TiAlSiN coating.Analysis of the worn surface revealed that the TiAlSiN and TiAlCrN/TiAlN coatings in the dry turning process exhibited sign of inhomogeneous adhesive wear and abrasive wear.TiAlCrN/TiAlN coating has a longer working life and better anti-wear property because of its duplex coating.
A new laboratory evaluation method for the coating blade was developed, and the tribological properties of coating blades with different Ti-based coatings were studied by UMT-2 tribometer. Comparison between the areas of scratches before and after the cutting experiment was used to evaluate the cutting performance of the blades. Results showed that friction coefficient of TiAlCrN / TiAlN coating was significantly lower than that of TiAlSiN coating. Analysis of the worn surface revealed that the TiAlSiN and TiAlCrN / TiAlN coatings in the dry turning process exhibition sign of inhomogeneous adhesive wear and abrasive wear. TiAlCrN / TiAlN coating has a longer working life and better anti-wear property because of its duplex coating.