Carbide tools coating method
During the past half-century, in order to improve tool performance and tool surface coating technology has become mainstream. Like the armor of a tool, the coating has the characteristics of strong protection, acid resistance, oxidation resistance, and wear resistance, which can improve the surface hardness and thermal stability coefficient of the tool, also reduce the friction coefficient to increase the cutting speed, thereby increasing the machining efficiency and tool life. Tool coating technology can be divided into two categories: CVD (chemical) and PVD (physical)