Ultra-Fine Grain Tungsten Carbide Cutting Tools

Ultra-fine grain tungsten carbide cutting tools has a high hardness and strength, tungsten carbide by the ultra-fine grain tungsten carbide cutting tools that is 0.5μm of WC, Co, vanadium tungsten carbide and chromium tungsten carbide Cr3C2 VC composition, suitable for In high-speed steel cutting tools wear enough, and as a result of vibrations caused by wear and tear or because the case is too low and should not use the traditional tungsten carbide cutting tools .

Ultra-fine grain tungsten carbide cutting tools WC grain size generally 0.2 ~ 1.0μm, 0.5μm or less at most, a fraction to a few tenths of an ordinary tungsten carbide WC grain size, and its hardness is generally 90 ~ 93HRA, flexural strength of 2000 ~ 3500MPa, the same ratio of cobalt content is generally high WC-Co cemented tungsten carbide cutting tools, and the work material attract each other - the smaller diffusion, especially for heat-resistant alloy, high strength alloy steel and other difficult materials. Fine grain tungsten carbide cutting tools previously used for K classes, but in the P class, ultra-fine tungsten carbide tungsten carbide M class, will be in the WC grains finer subgrain structure defects less comprehensive higher performance direction.

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