Research Article
Characterization of Tool Wear in High-Speed Milling of Hardened Powder Metallurgical Steels
Table 1
Experimental conditions.
| | Cutting tool | | | Design of cutting tool | Solid carbide ball-end mill | | Tool diameter (mm) | 6 mm | | Flute (s) | 4 | | Helix angle (°) | 30 | | Angle of rake (°) | −10 | | Coating |
TiAlN |
| | Cutting parameters | | | Effective cutting speed (m/min) | 225, 300 and 400 | | Effective tool diameter (mm) | 5.796 | | Feed per tooth (mm/touth) | 0.05 | | Radial depth of cut (mm) | 0.05 | | Axial depth of cut (mm) | 0.04 | | Tilt angle (°) | 75 | | Overhang of the tool (mm) | 25 | | Cutting style | down-cutting | | Lubricant | dry |
| | Machine tool | Mikromat 8 V HSC | | Maximum spindle speed (min−1) | 24000 | | Spindle power (kW) | 27 | | Speed of axis (m/min) | 24 | | Acceleration of axis (m/s2) | 4 | | Positioning accuracy (mm) | 0.001 | | Control system | Andronic 400 | | Drive | Ball screw spindles |
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