Fresas de precisión,Herramientas de corte para el mecanizado CNC de todos los materiales
In CNC machining, both 2-flute and 4-flute end mills are essential tools. Though similar in appearance, choosing wrong can impact efficiency and costs. We’ll break down their differences in structure, aplicaciones, and selection.
Core Differences
| Característica | 2-Molino de extremo de flauta | 4-Molino de extremo de flauta |
|---|---|---|
| Chip Space | Large | Small |
| Evacuación de virutas | Excellent (aluminum/plastics) | Limited (prone to clogging) |
| Cutting Edges | 2 | 4 |
| Tasa de alimentación | Lower | Higher |
| Acabado superficial | Good | Excellent |
| Best Materials | Aluminio, madera, soft plastics | Acero, acero inoxidable, hard plastics |
| Best Operations | Tragaperras profundas, roughing | Acabado, thin walls |
1. Structural Differences
Cutting Edges
2-flauta:
- Wider cutting edges
- Better for material removal
4-flauta:
- Double the edges
- Higher feed capability
Evacuación de virutas
- 2-flauta: 50% more space
Prevents clogging with gummy materials
- 4-flauta: Compact design
For short-chipping metals only
2. Material Selection Guide
| Material | Herramienta recomendada | Why? |
|---|---|---|
| Aluminio/Madera | 2-flauta | Prevents chip welding |
| Steel/Cast Iron | 4-flauta | Better heat dissipation |
| Titanium/Alloys | Test both | Coating-dependent performance |
3. Performance Comparison
| Parámetro | 2-Flauta | 4-Flauta |
|---|---|---|
| Surface Roughness | Ra 3.2-6.3μm | Ra 1.6-3.2μm |
| Speed Range | 800-3,000 RPM | 1,500-5,000 RPM |
4. 3-Step Selection
Paso 1: Check Material
- Soft (HB<200) → 2-flute
- Hard (HB≥200) → 4-flute
Paso 2: Operation Type
- Roughing → 2-flute
- Finishing → 4-flute
Paso 3: Potencia de la máquina
- Low power → 2-flute
- High-speed CNC → 4-flute
Cost Analysis
2-flauta:
- Lower initial cost
- Replace when worn
4-flauta:
- Higher upfront cost
- Can be reground
Summary
2-flute end mills excel in aluminum/soft materials with superior chip evacuation, while 4-flute versions deliver better finishes on steel/hard materials. Choose based on material hardness, operation type (roughing vs finishing), and machine capability. Always test critical applications
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