According to the grain size, cemented carbide can be divided into ordinary cemented carbide, fine-grained cemented carbide and ultra-fine-grained cemented carbide. According to the main chemical composition, cemented carbide can be divided into tungsten carbide-based cemented carbide and titanium carbide-based cemented carbide. Tungsten carbide-based cemented carbide includes tungsten cobalt (YG), tungsten cobalt titanium (YT) and added rare carbide (YW), which have their own advantages and disadvantages, and the main component is tungsten carbide (WC), titanium carbide (Tic), niobium carbide (NbC) and other commonly used metal bonding phases are Co. Titanium carbide-based cemented carbide is a cemented carbide with Tic as the main component, and the commonly used metal bonding phases Mo and Ni.
