Case Studies
Motor Spindles
Gear-Speed series
♯ CNC automatic lathe
♯ Drilling
♯ Steel
♯ Other
♯ φ2.1～φ3.0
[Carbon steel (S50C) φ2.5 drilling] CNC Automatic Lathes × Speed-Increasing Spindle
Product： NGS-3140-CTZ01
Spindle O.D.：φ31mm
- Product series
- Gear-Speed
- Product
- NGS-3140-CTZ01
- Spindle O.D.
- φ31mm
- Machine
- CITIZEN MACHINERY CO.,LTD. / Cincom L20 LFV
- Workpiece material
- Carbon steel (S50C)
- Tool
- Mitsubishi Materials Corporation / DWAE0250X04S040 φ2.5
Drilling conditions
| Convetional drilling (Standard rotary tool) | Nakanishi's proposed conditions | |
|---|---|---|
| Cutting speed [m/min] | 39 | 94 |
| Rotational speed [min⁻¹] | 5,000 | 12,000 |
| Feed per rev. [mm/rev] | 0.08 | 0.05 |
| Feed rate [mm/min] | 400 | 600 |
Point
Feed rate improved by 150%!
