What Is CNC Milling for Titanium? - Complete Guide
Complete guide to CNC milling of titanium alloys. Process capabilities, cutting parameters, tooling recommendations, and best practices for milling Grade 5 and other titanium alloys.
Quick Answer
What is CNC milling for titanium?
CNC milling uses rotating multi-point cutting tools to remove material from titanium workpieces. It is the most versatile machining process for producing complex prismatic features including pockets, slots, contours, and threaded holes in titanium components.
Cutting Parameters
| Operation | Speed (SFM) | Feed (IPT) | DOC (in) |
|---|---|---|---|
| Rough Milling (Grade 5) | 150鈥?50 | 0.004鈥?.008 | 0.100鈥?.200 |
| Finish Milling (Grade 5) | 200鈥?00 | 0.003鈥?.005 | 0.010鈥?.050 |
| Rough Milling (Grade 2) | 200鈥?50 | 0.005鈥?.010 | 0.080鈥?.180 |
Tooling Recommendations
- Substrate: Micrograin carbide (K10-K20)
- Coating: AlTiN, TiAlN, or TiB鈧?for high-temperature applications
- Geometry: Positive rake angles (8-12掳), polished flutes for chip evacuation
- Coolant: High-pressure through-spindle coolant (1000+ PSI) recommended