Most Frequently Used Cutting Tools in Vertical Milling Machines
Vertical milling machines (VMCs) are essential for machining planes, grooves, и сложные 3D контуры. Tool selection directly impacts efficiency and finish quality. This guide explores key end mill cutter types and selection logic for machining success.
Core End Mill Cutter Types: From General to Specialized
1. Flat End Mill
Приложений:
- Face milling
- Square shoulder milling
- Долбление (mold bases, mechanical components)
Technical Advantages:
- 4-6 flute carbide body (ISO P20-P40)
- Coarse pitch design (>8миллиметр) improves chip evacuation
User Tip: Use DLC coating for aluminum to prevent material adhesion.
2. Ball Nose End Mill
Приложений:
- 3D contour finishing
- Aerospace blade profiling
- Artistic engraving
Variants:
- Single-flute: Cost-effective for manual regrinding
- Indexable multi-flute: R0.5-R6mm radius, IT5 precision
Performance: Achieves Ra0.4μm finish in 5-axis machining.
3. Corner Radius End Mill
Ключевые особенности:
- 0.5-3mm radius reduces stress concentration
- 30°-45° helix angle balances cutting forces
- Case Study: Automotive molds achieved 120-minute tool life on HRC45 steel with R2mm tools.
Case Study: Automotive molds achieved 120-minute tool life on HRC45 steel with R2mm tools.
4. Roughing End Mill
Efficiency Metrics:
- Serrated edges boost material removal by 30%
- Reduces cutting forces by 25%
- MQL decreases coolant use by 80%
5. Tapered End Mill
Приложений:
- Mold draft angles
- Precision narrow slotting
- Hole enlargement
Advantage: 1°-15° taper angle improves vibration resistance.
6. Keyseat Cutter
Приложений:
- Shaft keyways
- Gear splines
- Проектировать: Full-radius edges ensure ±0.01mm sidewall perpendicularity.
7. Drill Mill
Приложений:
- Combined drilling/milling
- Deburring
- Small-batch prototyping
Benefit: Multifunctional design reduces tool changes.
End Mill Selection Framework: Материал, Stage, Machine
Material-Specific Solutions
Материал | Recommended Coating | Application Example |
---|---|---|
Алюминий (6061) | AlTiN+DLC hybrid | Aerospace frames |
Stainless (304) | AlCrN nano-coating | Medical implants |
Cast Iron | Технология TiCN | Machine tool beds |
Титан | CBN | Jet engine blades |
Machining Phase Strategy
- Черновая обработка: High-feed end mills (≥0.15mm/tooth) + trochoidal paths
- Semi-Finishing: Corner radius end mills + helical interpolation
- Отделка: Ball nose tools with 0.05mm stepover (Ra0.8μm achievable)
Machine Optimization
- Long overhangs: Anti-vibration holders + <10mm tools (L:D ratio <5:1)
- High-speed spindles: G1-grade balanced tools
User FAQs: End Mill Solutions
1 квартал: How to prevent insert chipping in titanium?
A: Use CBN-coated end mills with climb milling (reduce speed 30%, double tool life).
Q2: Cost-saving for low-volume production?
A: Modular toolholders compatible with flat/ball/corner radius heads.
3 квартал: Chip evacuation in deep cavities?
A: Roughing end mills + plunge milling + air blast (40% efficiency gain).
4 квартал: Aluminum sticking solutions?
A: DLC-coated tools + air/oil mist cooling (21.4% force reduction).
Emerging Trends
- AI Optimization: Automatic parameter matching algorithms
- Eco-Coatings: ISO 14855-certified biodegradable AlCrN
- Digital Twins: Siemens Teamcenter for virtual tool life prediction
- Nano-Composites: DLC coatings extend non-ferrous tool life
Заключение
Optimize end mill cutter types selection by evaluating:
- Material properties → Coating tech (AlTiN/DLC)
- Machining phase → Dedicated roughing/finishing tools
- Machine capability → Rigidity/speed compatibility
Carbide flat and corner radius end mills solve 80% of applications – the ultimate solution for modern workshops.