20
2025
-
12
Why don't good inserts chipped？
The good quality of the insert without chipping is mainly attributed to material selection, process optimization and design balance. The following are the key reasons:
Material selection
High wear-resistant materials: When processing high-hardness materials (such as quenched steel, nickel-based alloys), using cemented carbide, ceramic or CBN tools can reduce the risk of chipping.
Coating technology: Coatings such as TiAlN and TiCN can reduce friction and high-temperature wear, and extend the tool life.
Process optimization
Geometric design: Adjusting parameters such as the rake Angle and relief Angle can optimize the distribution of cutting force and reduce chipping.
Heat treatment: Local quenching (such as covering the blade with soil and burning it) can increase the hardness of the blade edge while maintaining overall toughness.
Design balance
The coordination of toughness and hardness: High-quality cutting tools, through composite materials (such as the steel sandwich method) or local strengthening techniques, balance sharpness and chipping resistance.
Insert thickness and particle control: Diamond inserts balance cutting efficiency and chipping risk by adjusting particle size and binder strength.
Application scenario adaptation
Specialized tool holders: For instance, surgical blades undergo standardized testing to ensure sharpness and durability, preventing chipping.
Fixtures and shock absorption: High-strength fixtures and shock absorption devices can reduce chipping caused by vibration.
