Case Studies
Motor Spindles
E4000 series
♯ Special Purpose Machine
♯ Drilling
♯ Stainless
♯ Other
♯ ～φ1.0
Drilling φ0.5 mm × depth 6 mm in stainless steel 303
Product： CTM-4020
Spindle O.D.：φ40mm
- Product series
- E4000
- Product
- CTM-4020
- Spindle O.D.
- φ40mm
Drilling conditions
| Tool manufacturer's recommended conditions | Nakanishi spindle CTM-4020 working conditions | |
|---|---|---|
| Workpiece material | Stainless steel 303 | Stainless steel 303 |
| Tool diameter | φ0.5 mm drill | φ0.5 mm drill (Mitsubishi Materials/MWS0050XB-VP15TF) |
| Hole depth | - | 6 mm, through hole |
| L/D | ≦12 | 12 |
| Cutting speed | 20 m/min | 31 m/min |
| Motor speed | 12,700 min⁻¹ | 20,000 min⁻¹ |
| Feed rate | 0.008 mm/rev | 0.01 mm/rev |
| Feed speed | 100 mm/min | 200 mm/min |
| Coolant | Internal lubrication | internal lubrication (30 MPa) + external lubrication oil-based coolant viscosity VG 7 |
| Drilling | - | non-peck drilling |
| Pilot hole | with pilot hole | depth 1 mm φ0.5 mm drill (Mitsubishi Materials/MWS0050SB) |
| Processing time | - | 3 sec/hole |
Point
Doubled feed rate enables significant improvement in machining efficiency by using the Nakanishi high-speed spindle based on the tool manufacturer’s recommended cutting conditions.
