CoroBore® BR30
Three-edge rough boring tools for maximum productivity
CoroBore<sup>®</sup> BR30 – cavity boring solution
| Component: | 4" gate valve |
| Material: | Full cladded Inconel 625 |
| Operation: | Rough boring |
| Machine: | Doosan NHM 8000 |
| Coolant: | Emulsion, through and external coolant supply |
63%
Cycle time reduction
173%
Productivity increase
| Twin-edge rough boring tool | ®CoroBore BR30 – cavity boring solution | |
| Insert | TCMT 16T308 KC 9125 | SPMT 1210-BM 1145 |
| zn | 2 | 8 |
| n, rpm | 60 | 32 |
| vc, m/min (ft/min) | 27.5 (90) | 14.7–15 (48–49) |
| vf, mm/min (in/min) | 4.5 (0.177) | 26 (1.024) to depth of 250 mm (9.842 inch) 20 (0.787) to depth of 360 mm (14.173 inch) |
| fz mm/z (in/z) | 0.05 (0.002) | 0.1 (0.004) |
| ae mm (inch) | Uneven surface, depends on the weld, minimum 3 mm (0.118 inch) per side to bore | |
| Number of passes | 2 | 2 |
| Tool life | 18 insert edges/cavity | 16 insert edges/cavity |
| Machining time | 78 minutes | 16 minutes |
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