CCGT insert

• C: Shape. The first “C” signifies a rhombic (diamond) shape with an 80-degree included angle.
• C: Clearance Angle. The second “C” indicates a 7-degree positive clearance angle.
• 克： Tolerance. “G” denotes a medium tolerance range, though other precision tolerances may exist.
• 電話： Chipbreaker Style & Hole Configuration. This letter designates both the chip forming geometry and whether the insert has a central hole. Chipbreaker variations are numerous and manufacturer-specific.
• 數字：
  • 前兩位數字： Inscribed circle (IC) diameter in millimeters. Divide this by 25.4 to get the approximate inch equivalent.
  • 接下來的兩位數字： Thickness in millimeters. Divide by 25.4 for the inch conversion.
  • 最後兩位數字： Nose radius in millimeters. Also divide by 25.4 for an inch approximation.

CCGT Carbide Inserts

Virtually all CCGT inserts are made from carbide-based materials. Here’s what you need to know:

• Substrate: The core carbide material determines the insert’s fundamental properties like toughness and wear resistance. Different compositions offer suitable balances for various applications.
• 塗層： Thin layers of advanced materials like TiN, TiAlN, CVD, or PVD are applied to the carbide substrate. These coatings enhance wear resistance, reduce friction, and improve performance in specific materials.

The Importance of Grade

Choosing the right carbide grade (substrate + coating) is crucial. This is matched to the workpiece material you’re cutting:

• 鋼
• Stainless Steels
• Cast Iron
• Non-ferrous metals (like aluminum)
• Hardened Materials

Let me know if you want to dive deeper into the following:

• Common chipbreaker styles and their applications
• How to choose the right CCGT insert grade for your material