In tungsten steel end mills, the main component is tungsten carbide. The hardness and heat resistance performance of the steel has increased significantly, however toughness has dropped sharply
Moreover, white steel end mills are mainly used for low-speed turning workpiece processing because their roughness is better than carbide inserts!
Cemented carbide end mill is harder than HSS, but cemented carbide is more brittle than white steel and can be easily broken. The main component of carbide end mills is rare metal that is strong, durable, and not afraid of annealing. Cemented carbide is also known as tungsten-titanium alloy. It has the characteristic of not being easy to be worn. The maximum temperature of use is at 900° C
By using the advanced European passivation process, end mills are able to significantly improve tool life, machine efficiency, and workpiece roughness. In passivation, the tool is deburred, smoothed, polished, and coated as part of a process between fine grinding and coating, extending the tool’s life and improving its quality.