Ceramic cutting tool and manufacturing method thereof

The present disclosure provides a ceramic cutting tool and a method of manufacturing the same, the ceramic cutting tool including cermet particles, the ceramic cutting tool further including an infiltrating layer formed at a surface of the ceramic cutting tool in which a buffer material infiltrates between the cermet particles to connect the cermet particles to each other, the hardness of the buffer material is smaller than that of the metal ceramic particles. According to the ceramic cutting tool, cracks can be prevented from being formed on the surface of the ceramic cutting tool, and brittle fracture of the ceramic cutting tool is effectively prevented. 本公开提供一种陶瓷刀具及其制造方法，所述陶瓷刀具包括金属陶瓷颗粒，所述陶瓷刀具还包括形成在所述陶瓷刀具的表面处的渗入层，在所述渗入层中，缓冲材料渗入所述金属陶瓷颗粒之间以将所述金属陶瓷颗粒彼此连接，所述缓冲材料的硬度小于所述金属陶瓷颗粒的硬度。根据本公开的陶瓷刀具，可防止在陶瓷刀具的表面形成裂纹，有效防止陶瓷刀具的脆性断裂。