01. Coolant Vitality
Concentration Rule
8% - 12%
ValidTi Grade 23 is ductile. Standard 5% mix is insufficient for lubrication. Increase oil content to prevent galling.
Nozzle Position
Direct at tool tip
Filtration
Check < 50μm
02. Verified Parameters (Wet)
| Strategy Phase | RPM (S) | Feed (F) mm/min | Z-Step |
|---|---|---|---|
| Roughing (Ø2.0/3.0) | 18,000 - 22,000 | 1,200 - 1,500 | 0.3 mm |
| Semi-Finish (Ø1.5) | 24,000 | 1,000 | 0.15 mm |
| Finishing (Ø1.0) | 30,000+ | 600 - 800 | 0.05 mm |
| Screw Channel | 15,000 | 300 (Peck) | 0.02 mm |
* Parameters validated on VHF S5 / Roland DWX-52D with coated carbide burs.
03. "Soft-Touch" Tactics
Entry Method
Helical / Ramp
Never plunge vertically. Use 2-3° ramp angle to protect tool tip.
Margin Line
0.1mm Radial Stock
Leave enough stock for the final pass to "bite", preventing rubbing.