精密フライスカッター,あらゆる材料を加工するCNC用の切削工具
Four Flute End Mill – Definition & Overview
A four flute end mill is a high-efficiency metal cutting tool designed for precision milling operations. Its four helical flutes optimize chip evacuation and cutting stability, making it ideal for slotting, contouring, and face milling of steel, stainless steel, aluminum alloys, and other materials. Compared to two-flute end mills, the quadruple cutting edges deliver 40% higher feed rates and superior surface finish (Ra0.4μm), serving as essential CNC tools for productivity improvement and cost reduction.
Core Advantages
① Superior Chip Evacuation
30°-45° helix angle creates continuous chip channels, preventing clogging in deep-slot milling (up to 8×D) and high-speed machining (HSM) アプリケーション.
② Extreme Rigidity & Vibration Control
Reinforced core diameter + submicron carbide substrate (HRA93.5 hardness) reduces vibration and extends tool life by 300% versus standard end mills.
③ Precision Surface Quality
Asymmetric flute spacing eliminates harmonic vibration, achieving Ra0.4μm surface finish – ideal for vertical wall finishing without secondary polishing.
④ Universal Compatibility
- Materials: 6061-T6 aluminum → HRC55+ tool steels
- Machines: CNC centers & turn-mill complexes
- Cooling: Dry cutting / MQL / Through-Tool Coolant Ports
⑤ Advanced Wear Resistance
TiAlN/TiCN nano-composite coatings + ultra-fine grain carbide increase heat resistance by 200%, with custom flute lengths/geometries available.
Technical Specifications
| Category | Details |
|---|---|
| Dimensions | • Diameter: 1/8″-1″ (3-25ミリメートル) • Cutting length: 0.5″-4″ (12-100ミリメートル) • OAL: 2″-6″ (50-150ミリメートル) |
| 材料 | Submicron tungsten carbide (HRA93.5) Optional HSS for toughness-critical applications |
| Coatings | TiAlN/TiCN/AlCrN (900°C oxidation resistance) DLC coating available upon request |
| Geometry | • Helix angles: 30°/35°/45° (material-specific) • Tolerance: h5/h6 precision grade |
| Compatibility | • Shank types: Straight/Weldon/CAT/BT/HSK • Speed range: 800-18,000 RPM |
Industry Applications
自動車
Machine engine blocks & transmission components with 5-axis CNC simultaneous machining.
Aerospace
Achieve Ra0.8μm surface standards on Ti-6Al-4V structural frames.
Mold & Die
Mill HRC52-58 steel cavities using PVD-coated tools lasting 800+ meters.
3C Electronics
Create precision slots in aluminum casings with 0.2mm micro-end mills.
Medical
Produce burr-free 316L stainless steel implants compliant with ISO13485.
Selection Guide
1. Material-Based Selection
- Aluminum/Copper: 12°-15° rake angle + low-friction coating
- Steel/Stainless: Negative rake (-5°~0°) + fine-grain carbide
2. Operation-Specific Choices
- Roughing: Wave-edge design boosts MRR by 40% (verified by ISO 13399)
- Finishing: Ball nose options with h5/h6 tolerance
3. Machine Compatibility
- High-RPM (>8,000): HSK/heat-shrink holders
- Low-Power: Max 10mm diameter recommended
4. Flute Count Recommendation
✅ 4-Flute: Productivity & fine finishes on aluminum/mild steel
⚠ 2-Flute: Titanium alloys & deep slot applications
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• ANSI B212.4 & ISO 9001 Certified • CAD Models Included • 48h Global Shipping