Result1.5× tool life
Cutting conditions
| Grade | KBCN10N |
|---|---|
| Insert model | CNGA120408 |
| Workpiece material | 20MnCrS5 case-hardening steel (HRC58-60) |
| Part / feature | Pinion — outer diameter |
| Operation | Continuous turning (OD) |
| Cutting speed vc | 160 m/min |
| Feed f | 0.35 mm/rev |
| Depth of cut ap | 0.15 mm |
| Coolant | Dry |
| Data source | Field application |

Result and comparison basis
Machined 1.5 times the number of parts of the previously used grade with better surface finish (Rz max 4.8 μm) at 0.35 mm/rev feed.
Comparison basis: Previously used grade.
Comparative data from Koves internal cutting tests and customer field applications. Competitor grades are anonymized as reference grades. Results depend on workpiece, machine and setup; validate on your own production before adopting parameters.
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