Result170 vs 110 pcs
Cutting conditions
| Grade | KBN7030 |
|---|---|
| Insert model | CCGW09T304 |
| Workpiece material | SCr415H case-hardening steel (gear) (HRC) |
| Part / feature | Gear — bore |
| Operation | Bore / internal turning |
| Cutting speed vc | 159–175 m/min |
| Feed f | 0.11 mm/rev |
| Depth of cut ap | 0.12 mm |
| Coolant | Wet |
| Data source | Field test at customer site |
Result and comparison basis
Gear bore interrupted turning at 58–60 HRC: 170 parts versus 110 for the competitor grade, a roughly 55% life improvement.
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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