How Many Types of Hard Alloy Cutting Tools Are Commonly Used in Mechanical Processing, And What Materials Are Suitable for Processing?

Several types of hard alloy cutting tools are commonly used in mechanical processing. These include:

1.Cemented Carbides:

Tungsten Carbide (WC): Suitable for cutting non-ferrous metals, cast iron, and non-metallic materials like wood and plastics.

Titanium Carbide (TiC): Used for cutting hard materials like steel, cast iron, and high-temperature alloys.

2.Cermets:

Made of ceramic materials (like titanium carbide) and metals (like nickel or cobalt), cermets are ideal for high-speed finishing and cutting of steels and cast irons.

3.Ceramics:

Silicon Nitride (Si₃N₄): Effective for machining cast iron and hard steels.

Aluminum Oxide (Al₂O₃): Used for high-speed machining of hard steels and cast irons.

4.Cubic Boron Nitride (CBN):

Suitable for cutting hardened steels, cast irons, and superalloys. It's particularly used for finishing and hard turning applications.

5.Polycrystalline Diamond (PCD):

Ideal for machining non-ferrous metals, non-metallic materials, and composites. It's not suitable for cutting ferrous metals due to chemical reactivity.