October 8, 2026 Kyocera CP268-2 Dynamic Bar Boring Tools
The Kyocera CP268-2 Dynamic Bar internal boring bar series is engineered with an aerodynamic holder design to provide superior chip evacuation, reduced chattering, and exceptional machining stability during internal turning operations. Developed by Kyocera using advanced computer simulation and stress analysis, this boring tool lineup achieves maximum structural rigidity while maintaining a large chip pocket for smooth chip control.
Key Features and Engineering Advantages
The Kyocera CP268-2 Dynamic Bar incorporates several structural innovations designed to solve deep-hole internal boring challenges:
- AeroDynamic Design: Streamlined holder geometry directs chip flow backward (away from the cutting edge) to prevent chip packing inside the workpiece.
- High Holder Rigidity: Maximum structural thickness at stress-concentrated areas minimizes holder deflection under high cutting forces.
- Superior Anti-Vibration Performance: Suppresses chatter vibrations to allow extended overhang ratios up to 5.5 L/D for stable machining.
- High Edge Positional Accuracy (AE Type): The AE-type carbide Dynamic Bar utilizes a specialized alloy substrate to maintain precise X-axis edge positioning even after repeated cutting impacts.
Machining Performance Comparison
Internal evaluations demonstrate the operational benefits of the Kyocera CP268-2 Dynamic Bar compared to conventional boring tools:
- Chip Evacuation: Under external coolant conditions, 100% of chips are safely evacuated outside the workpiece, whereas competitor tools leave residual chips trapped inside.
- Surface Roughness Quality: Achieves a mirror-like finish (Ra 0.4 µm / Rz 2.3 µm) at high cutting speeds (Vc = 210 m/min) on SCM415 steel due to minimal vibration wave distortion.
- Overhang Capability: Supports greater maximum overhang length (L/D) compared to standard steel and carbide competitors while maintaining smooth wall finishes.
Technical Specifications
| Product Model | Holder Material / Type | Primary Design Feature | Max Overhang Ratio (L/D) | Target Application |
|---|---|---|---|---|
| CP268-2 (S-Type) | Steel Shank | AeroDynamic Large Chip Pocket | Up to 4.5 L/D | General Internal Boring & Finishing |
| CP268-2 (A-Type) | Steel Shank with Coolant Hole | Internal Coolant Delivery & Backward Chip Flow | Up to 5.0 L/D | Deep-Hole Internal Boring |
| CP268-2 (AE-Type) | Special Alloy / Solid Carbide Shank | Maximum Rigidity & Anti-Vibration Structure | Up to 5.5 L/D | High-Precision & High-Overhang Internal Turning |
Conclusion
Utilizing the Kyocera CP268-2 Dynamic Bar in your turning operations ensures chatter-free internal boring, enhanced surface finish quality, and extended tool life. For genuine Kyocera tooling solutions and expert technical support, please Contact – LORIOT INDUSTRIAL.
