Carbide Inserts Manufacturing Process

What are carbide inserts?

Carbide inserts are core components of indexable cutting tools manufactured using powder metallurgy processes. They are primarily used in metal cutting operations such as turning, milling, and drilling. Unlike traditional solid cutting tools, carbide inserts are not used directly as complete tools. Instead, they are mounted on tool holders or tool heads through clamping or screw-fixing.

As the "teeth" of modern industry, the manufacturing process of carbide inserts is extremely complex, involving multiple high-precision stages from raw material powder to the final finished product. This article will provide a detailed introduction to the manufacturing process of carbide inserts and the core technical points of each stage.

Selection Of Core Raw Materials

The performance of carbide inserts depends first on the quality and ratio of raw materials.

• Tungsten Carbide (WC) powder: Provides hardness and wear resistance. The particle size (from ultra-fine to coarse grain) determines the toughness and strength of the insert.
• Cobalt (Co) powder: Acts as a binder. The cobalt content determines the toughness and impact resistance of the carbide.
• Additives (TiC, TaC, NbC, etc.): Used to improve the high-temperature hardness and crater wear resistance of the insert.