ResultStable at 0.2 mm/rev
Cutting conditions
| Grade | KBN6020 |
|---|---|
| Insert model | CNGA120408 |
| Workpiece material | SCM415H case-hardening steel (HRC60) |
| Part / feature | Shaft — outer diameter |
| Operation | Interrupted turning |
| Cutting speed vc | 150 m/min |
| Feed f | 0.2 mm/rev |
| Depth of cut ap | 0.15 mm |
| Coolant | Dry |
| Data source | Internal cutting test |
Result and comparison basis
KBN6020 carried a heavy feed of 0.2 mm/rev through interrupted turning of HRC 60 steel with less wear than the compared grades — cutting remained stable throughout the test.
Comparison basis: Three competitor reference grades.
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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