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CoroChuck® 930
High-precision hydraulic chuck For milling, drilling and reaming operations where precision and high pull-out security is required Available for the most common machine interfaces
Customer case, twin-screw manufacturing test
The customer experienced tool pull-out due to vibrations and tool wear.
| Component: | Twin-screw |
| Material: | Steel (42CrMo4) |
| Operation: | Milling |
| Machine: | DMG MORI NT6500/6000 |
| Chuck: | CoroChuck® 930 HD25/C8 |
| Collet: | CLF 25/20 (393.CLF-252056) |
| End mill: | 2S342-2000-200-PA 1730 |
100%
pull-out security
| Cutting data | |
| n, rpm | 3220 |
| vf mm/min (in/min) | 1500 (590) |
| ap mm (inch) (differential) | 10 (0.394) (nominal) |
| ae mm (inch) (full slot) | 20 (0.787) |
| Result: | The mechanical locking interface solution generated a stable process and no pull-out. Productivity increased due to longer tool life. |
Customer performance test with CoroMill® Plura
| Operation | Trochoidal milling |
| Workpiece material | Inconel 718 (CMC 20.22, MC S2.0.Z.AG) |
| Machine | Hermle C50 |
| Cutting data | CoroChuck® 930 | Competitor |
| n rpm | 3183 | 3183 |
| vc m/min (ft/min) | 80 (260) | 80 (260) |
| ap mm (inch) | 18 (0.709) | 18 (0.709) |
| vf mm/min (in/min) | 763.92 (30.040) | 763.92 (30.040) |
| fz mm/z (in/z) | 0.06 (0.0024) | 0.06 (0.0024) |
| Results | ||
| Total machining time, min | 12 | 6 |
| Tool condition | Tool breakage | Tool breakage |
| CoroChuck® 930 increased machining time by 100% due to better clamping conditions and damping abilities. |
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