Basic Concepts and Materials of Cutting Inserts
Cutting inserts are the core components of industrial cutting tools, utilized for machining operations. Tungsten carbide is one of the most common materials used for inserts, though it is not the only option. Tungsten carbide is renowned for its high hardness and wear resistance, making it suitable for machining materials of high hardness. Furthermore, cutting inserts may be fabricated from other materials-such as ceramics, Cubic Boron Nitride (CBN), and others-with the specific choice depending on the particular machining requirements.
Characteristics and Advantages of Tungsten Carbide Inserts
Tungsten carbide inserts are widely utilized in the industrial sector due to their exceptional performance characteristics:
- High Hardness: The hardness of tungsten carbide approaches that of natural diamond, making it ideal for cutting high-hardness materials.
- Wear Resistance: It retains a sharp cutting edge even after prolonged use.
- High-Temperature Resistance: It resists deformation in high-temperature environments, making it suitable for high-speed cutting operations.
Alternative Materials for Cutting Inserts
In addition to tungsten carbide, several other materials are available for cutting inserts:
- Ceramic Inserts: Suitable for high-speed cutting applications, though they exhibit relatively high brittleness.
- CBN Inserts: Used for machining ultra-hard materials, such as hardened steel.
- PCD Inserts: Suitable for the precision machining of non-ferrous metals and non-metallic materials.
