Open Access
Table 1
The working conditions at cutting tests.
| Cutting tool material | Cutting ceramic Al2O3-TiC |
|---|---|
| Cutting tool geometry | K = 75°; K 1 = 15°; γ = α = 5°; λ = 0; r = 0.8 mm |
| Coating composition and structure | Ti-(TiAl)N-(TiAlCr)N Ti-TiAlN-(ZrNbTiAl)N |
| Workpiece material properties | Hardened steels C90E2U, C45, 37Cr4 with hardness of HRC 48–52 |
| Cooling conditions | Dry cutting |
| Machine-tool | Lathe CU 500 MRD |
| Cutting conditions | Vc = 600 m/min, f = 0.1 mm/rev, ap = 0.1–0.25 mm |
| Number of trials at cutting tests | 50–100 |
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