Tool Inserts for Different Materials: CBN, PCBN, and PCD

Introduction: Modern manufacturing processes demand high efficiency and precision when machining various materials. CBN (Cubic Boron Nitride), PCBN (Polycrystalline Cubic Boron Nitride), and PCD (Polycrystalline Diamond) tool inserts are at the forefront of meeting this demand. In this article, we will discuss the applications and advantages of these three types of cutting edges on different materials.

Applications of CBN Tool Inserts: CBN tool inserts are preferred for machining materials with high hardness, such as hardened steels, cast irons, and superalloys. With high-temperature endurance and wear resistance, CBN ensures long tool life and stable cutting conditions, particularly in hardened steel processing.

Features of PCBN Tool Inserts: PCBN tool inserts exhibit exceptional wear resistance and surface finish quality, especially on materials like gray cast iron and hardened steel. In terms of cutting speed and tool life, PCBN tool inserts perform highly under general machining conditions.

Advantages of PCD Tool Inserts: For soft and abrasive materials such as aluminum and its alloys, PCD tool inserts stand out. PCD provides extraordinary wear resistance and a low coefficient of friction, improving surface quality even at high cutting speeds.

Considerations for Material Selection:

• The hardness level of the material to be machined,

• Desired surface roughness and finishing quality,

• Cutting parameters such as cutting speed and feed rate,

• Whether the cutting operation is continuous or interrupted.

Conclusion: Each of the three types of tool inserts offers unique advantages for specific materials and machining conditions. The right choice of tool insert can significantly enhance machining efficiency and production quality. Manufacturers must make informed selections between CBN, PCBN, and PCD to maximize the success of the machining process.