Result70 vs 45 pcs
Cutting conditions
| Grade | KBN7030 |
|---|---|
| Insert model | CNGA120408 |
| Workpiece material | S45C medium-carbon steel (gear) (HRC) |
| Part / feature | Gear — face |
| Operation | Face turning |
| Cutting speed vc | 130 m/min |
| Feed f | 0.08 mm/rev |
| Depth of cut ap | 0.15 mm |
| Coolant | Wet |
| Data source | Field test at customer site |
Result and comparison basis
On interrupted gear face turning at 58 HRC, KBN7030 machined 70 parts against 45 for the reference grade — about 55% longer life.
Comparison basis: Competitor reference 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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