Why is the dovetail knife made of integral carbide?
Publish Time: 2025-07-23
In modern manufacturing, the dovetail knife, as an important cutting tool, is widely used in the processing of various materials due to its excellent performance. Behind its use of integral carbide, there is a deep understanding of material science, mechanical engineering and industrial needs. Integral carbide not only gives the dovetail knife excellent hardness and wear resistance, but also shows unique advantages in bending strength and cutting stability, becoming a key factor in achieving efficient and precise processing.First of all, the selection of integral carbide greatly improves the hardness and wear resistance of the dovetail knife. Carbide is a composite material made of tungsten carbide particles and cobalt and other bonding metals through powder metallurgy. Tungsten carbide particles have extremely high hardness and can effectively resist wear during cutting, ensuring that the tool remains sharp for a long time. At the same time, the presence of bonding metal makes the carbide have a certain toughness and impact resistance, avoiding the brittle fracture problem that may be caused by the use of high-hardness materials alone. This unique combination of materials enables the dovetail knife to work stably when facing high-strength and difficult-to-process materials, significantly extending the service life of the tool.Secondly, the dovetail knife made of solid carbide performs well in bending strength. Although traditional high-speed steel tools also have certain cutting capabilities, they are often prone to bending, deformation or even fracture when processing large workpieces or performing high-intensity operations such as deep hole drilling. In contrast, cemented carbide has a higher elastic modulus and bending strength, and can maintain structural integrity when subjected to large external forces, and will not easily deform. This means that the dovetail knife can still provide reliable support when facing high-intensity operations under complex working conditions, ensuring the continuity and stability of the processing process.Furthermore, the dovetail knife made of solid carbide achieves non-jumping cutting during the cutting process. Tool runout is one of the important factors affecting cutting accuracy and surface quality. Especially in the field of high-precision processing, any slight vibration may cause increased surface roughness or dimensional deviation of the workpiece. The high hardness and uniformly distributed microstructure of cemented carbide enable it to maintain a stable dynamic balance during high-speed rotation, reducing the vibration caused by imbalance. In addition, the low friction coefficient of cemented carbide also helps to reduce heat accumulation during cutting, further improving the smoothness and consistency of cutting, thereby ensuring high-quality processing of the workpiece.It is worth noting that the dovetail knife made of solid carbide also has significant advantages in heat resistance and oxidation resistance. During high-speed cutting, the friction between the tool and the workpiece will generate a lot of heat. If the tool material cannot effectively dissipate heat, it is easy to cause the tool tip to soften or oxidize, which in turn affects the cutting efficiency and tool life. Due to its special composition and microstructure, cemented carbide has excellent thermal conductivity and high-temperature stability. It can maintain its original hardness and strength in a high-temperature environment and is not prone to softening or oxidation. This not only improves cutting speed and efficiency, but also extends the service life of the tool and reduces production costs.In addition, the dovetail knife made of solid carbide performs particularly well in chamfering. As one of the important processes in mechanical processing, chamfering requires the tool to have good cutting stability and precise control capabilities. The high hardness and wear resistance of cemented carbide enable the dovetail knife to quickly remove excess material during chamfering operations, forming a smooth and flat edge, reducing the workload of subsequent grinding and polishing. At the same time, the excellent cutting performance of cemented carbide also ensures the consistency and accuracy of the chamfer angle, improving the processing accuracy and appearance quality of the product.Finally, the dovetail knife made of integral cemented carbide has shown a wide range of applicability in adapting to the processing of different materials. Whether it is difficult-to-process materials such as aluminum alloy, steel, stainless steel or titanium alloy, the dovetail knife can achieve efficient and stable cutting with its excellent material properties and optimized design. For softer materials such as aluminum alloy, the low friction coefficient of cemented carbide helps to reduce cutting resistance and improve processing efficiency; while for materials with higher hardness such as steel and stainless steel, the high hardness and wear resistance of cemented carbide can effectively cope with complex cutting conditions and ensure processing quality. This multi-material adaptability makes the dovetail knife an ideal choice for various precision manufacturing fields.In summary, the dovetail knife is made of solid carbide, which not only significantly improves the hardness, wear resistance and bending strength of the tool, but also shows unique advantages in cutting stability, heat resistance and oxidation resistance. These characteristics work together to enable the dovetail knife to achieve efficient and accurate processing tasks under a variety of complex working conditions, providing strong technical support for modern manufacturing. With the continuous advancement of materials science and manufacturing technology, the dovetail knife will play a more important role in more fields in the future, promoting precision manufacturing to a higher level.
