The coating materials of indexable blades mainly include aluminum oxide (Al2O3) and titanium nitride (TiN).
- Aluminum trioxide coating: It is a hard coating material with good wear resistance and heat resistance. It can enhance the hardness of the blade and improve the wear resistance and impact resistance of the blade. At the same time, the friction coefficient of the aluminum oxide coating is low, which can reduce cutting force and cutting temperature, thereby extending the service life of the tool.
- Titanium nitride coating: It is a metal coating material with high hardness, high wear resistance and good chemical stability. Coating the blade surface with titanium nitride coating can enhance the hardness, wear resistance and corrosion resistance of the blade, while improving the impact resistance and thermal fatigue resistance of the blade.
In addition, some high-end indexable tools also use other coating materials, such as silicon nitride (SiN) coating, titanium carbonitride (TiCN) coating, aluminum oxide (Al2O) coating, etc., to improve the tool’s durability. Performance and longevity.
In short, the coating materials for indexable inserts need to be selected based on actual cutting requirements and usage conditions. Different coating materials have different performance characteristics and usage ranges.
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