What Are CNC Boring Tools?
CNC boring tools are high-precision cutting instruments engineered for CNC machining centers and lathes. These specialized tools refine hole dimensions, roundness, and surface finish through rotational cutting – critical for aerospace components, automotive engines, and other tight-tolerance applications. Primary types include roughing boring bars, finishing heads, and adjustable boring systems.
Key Advantages
1. Micron-Level Precision
Featuring carbide shanks with precision adjustment mechanisms, our tools consistently achieve ±0.005mm tolerances – essential for jet engine parts and transmission housings.
2. Extended Tool Longevity
Nano-coatings (TiAlN/AlCrN) combined with optimized edge geometry reduce cutting forces, increasing tool life by 30% versus standard boring bars.
3. Rapid Changeover System
Modular quick-change inserts and boring bars enable instant diameter adjustments, slashing setup time by up to 70% during batch production.
4. Vibration Suppression
Anti-vibration carbide shanks eliminate chatter during deep-hole boring (Depth/Diameter >8:1), ensuring superior surface finishes up to Ra0.8μm.
5. Thermal Management
Internal coolant channels prevent heat buildup during continuous operation, improving chip evacuation and preventing workpiece deformation.
Technical Specifications
Parameter | 仕様 |
---|---|
Bore Range | Φ6-250mm (Customizable) |
シャンク径 | 16/20/25/32ミリメートル |
マテリアルの互換性 | 鋼鉄, Cast Iron, Superalloys |
Max Depth | 8×D (D=Shank Diameter) |
Surface Finish | Ra0.8μm (Fine Machining) |
Insert Options | Indexable/Solid Carbide |
Coatings | TiAlNの, AlCrN, Uncoated |
Industry Applications
Automotive Manufacturing
- Precision boring of engine cylinder liners and transmission bores with IT7-grade accuracy.
Aerospace Components
- Machining landing gear bushings and turbine casings from Inconel and titanium alloys.
Mold & Die Production
- Achieving micron-level accuracy in injection mold guide pins and die-casting cores.
Energy Sector
- Boring thick-walled pressure vessels and valve bodies for oil/gas equipment.
Heavy-Duty Machinery
- High-efficiency boring of bearing housings and gearbox casings in batch production.
Selection Guide
1. Material-Specific Solutions
- 鋼鉄: TiAlN-coated inserts (high-speed machining)
- Cast Iron: CBN or uncoated carbide (abrasion resistance)
- Stainless Steel: AlCrN-coated (built-up edge prevention)
2. Bore Size Optimization
- <20ミリメートル: Solid carbide bars (maximum rigidity)
- 20-80ミリメートル: Adjustable boring heads (±0.005mm micro-adjust)
- >80ミリメートル: Steel-body modular systems (cost-effective)
3. Machine Integration
- CNC Lathes: Straight shank boring bars
- Machining Centers: HSK/Taper shank modular kits
4. Advanced Configurations
- Deep Holes: Damped extension bars (L/D ratio >10:1)
- Fine Finishing: PVD-coated inserts (Ra0.4μm achievable)
- High-Mix Production: Quick-change cartridge systems
Why Partner With Us?
✓ 15+Year Boring Specialists
ISO 9001-certified manufacturing with DIN-compliant QC processes.
✓ Application Engineering
Custom boring solutions for exotic materials and complex geometries.