Knowledge of End Mill Coatings

The most important thing to understand about coating is that it's NOT just about the picking the right coating selection (AlCrN, AlTiN, TiAlN, TiCN, etc). It's equally important to pick the right process of applying the coating, along with pre & post treatments also coating thickness.

Kexian deals directly with the coating raw power supplier to design the perfect chemistry, hardness, thickness and finish for optimum cutting performance in customers'different applications.

The purpose of coatings: Extend Tool Life, Wear Resistance, minimize built up edge, Faster Speeds & Feeds, increase productivity

Technology choices by applications :
• Physical Vapor Deposition (PVD): thin, better edge toughness, smoother

• Arc Evaporation (ARC)
• High-power impulse magnetron sputtering (HiPIMS) – ultra dense coatings
• Chemical Vapor Deposition (CVD): thick, wear resistant – older technology still used in indexable tooling, but not round shank such as end mills

Some chemical compositions:

• Titanium Aluminum Nitride (TiAlN)

• Aluminium Titanium Nitride (AlTiN)
• Titanium Carbonitride TiCN
• Titanium Nitride (TiN)
• Aluminum Chromium Nitride (AlCrN)
• Titanium DiBoride (Tib2)
• Zirconium Nitride (ZrN)
• Diamond

End Mill Coatings Available

The Purpose of Coatings: Extend Tool Life, Wear Resistance, minimize built up edge, Faster Speeds & Feeds, increase productivity.

Some Available Chemical Compositions:

• Titanium Aluminum Nitride (TiAlN)

• Aluminium Titanium Nitride (AlTiN)

• Titanium Carbonitride (TiCN)

• Titanium Nitride (TiN)

• Aluminum Chromium Nitride (AlCrN)

• Titanium DiBoride (Tib2)

• Zirconium Nitride (ZrN)

• Aluminium Oxide (Al2O3)

• Diamond ( Some called Graphited)

High Performance Coatings Show