Single Coated Tungsten Carbide Cutting Tools Performance Comparison

In several common coating (TiC, TiN, Al2O3, TIAiN), and because of their different properties, it is suitable for different processing conditions. When the low-speed cutting steel material, TiC, TiN coated tool compared with Al2O3 coated tungsten carbide cutting tools is good, it is because in this cutting conditions TiC, TiN coated tungsten carbide cutting tools in the anti-flank terms of wear and resistance to mechanical vibration better than Al2O3 coated tools.

In contrast, in the high-speed cutting Al2O3 coated tungsten carbide cutting tools are better than TiC, TiN coated tungsten carbide. When the temperature is high speed cutting cutting tool wear by friction, diffusion and oxidation caused, Al2O3 coated tungsten carbide has good chemical stability and high temperature oxidation resistance, and therefore anti-crater wear when its temperature, After the anti-flank wear, anti-edge plastic deformation are better than TiC, TiN coatings, carbide high durability.
In continuous cutting conditions, the wear resistance and heat resistance are the main factors affecting the tool life, Al2O3 coated tools have excellent oxidation resistance and high temperature hardness, so the cutting conditions under continuous performance is better than TiC, TiN coating. But under intermittent cutting conditions, due to an impact force, the toughness of the coating has become a major influence carbide durability factor, but poor toughness Al2O3 coated tools, impact resistance is far better than TiC, TiN coated layers.


 

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