The difference between diamond and CBN and their application fields

Diamond (Diamond) and cubic boron nitride (Cubic Boron Nitride, referred to as CBN) are superhard materials with excellent hardness and wear resistance. They have their own characteristics and advantages in different application fields.

Diamond is one of the hardest materials on earth, with high hardness and excellent thermal conductivity. Therefore, diamond is often used to process high hardness materials, such as metal alloys, quartz, ceramics, etc. Diamond tools are widely used in cutting, grinding and repairing processes, such as high-speed turning, grinding and multi-edged tools. Diamond tools are also suitable for machining workpieces with complex shapes, because diamond materials can be customized into various shapes through machining.

CBN is a slightly softer material than diamond but harder than other common knife materials. CBN materials have high hardness, wear resistance and thermal stability, which makes CBN tools perform well in processing high hardness and high temperature materials. Compared with diamond, CBN tools are more suitable for processing cast iron, hardened steel, high-speed steel, high-hardness alloy and other materials. CBN tools can be used in turning, milling, boring, grinding and other processes, and are widely used in automobile manufacturing, machinery manufacturing, mold manufacturing and other industries.

In general, diamond and CBN have a wide range of applications in industrial applications. According to specific processing requirements and material characteristics, selecting the appropriate tool material can improve processing efficiency and product quality.