Carbide Carbide high hardness, refractory metal carbide (eg: WC, TiC, etc.) micron powder with Co, Mo, etc. as a binder sintered powder metallurgy products [1]. Currently, carbide divided into six categories: H class, mainly used for cutting high hardness materials such as hardened steel; K class, mainly used for cutting cast iron; M class, mainly ordinary type carbide; N class, for cutting non-ferrous metals; P class, primarily used for cutting steel material; S class, mainly used for cutting heat-resistant material, such as high temperature alloys, titanium alloys, etc. [2,3].