45° milling with double sided 10-edge inserts MFPN45 Reduced chattering with a low cutting force design and excellent fracture resistance Economical 10-edge insert 1 Economical 10-edge insert 2 Resists chattering Pentagonal double-sided inserts provide excellent stability Stable machining at high feed machining Two-face contact Cutting force Major cutting edge Low cutting forces due to curved cutting edge with a high axial rake angle (max. 10°) +10° (A.R.) Chip evacuation (In-house evaluation) fz = 0.2 mm/t fz = 0.3 mm/t MFPN Competitor A Competitor B Cutting conditions: Vc = 150 m/min, fz = 0.2 - 0.3 mm/t, ap × ae = 3 × 110 mm Workpiece: C50 Cutting force comparison (In-house evaluation) 2,000 Cutting force (N) 1,600 16% 1,200 800 Principal force 400 Feed force Back force 0 MFPN MFPN Competitor C Competitor D GM chipbreaker SM chipbreaker Cutting conditions: Vc = 150 m/min, fz = 0.1 mm/t, ap × ae = 5 × 105 mm Workpiece: C50 3 Fracture resistance Double edge position reduces impact load and controls vibration when entering the workpiece Wiper edge Secondary cutting edge Primary cutting edge Double edge position Fracture resistance comparison (In-house evaluation) PNMU1205ANER-GM (PR1225) Competitor E (PVD negative insert) Competitor F (PVD negative insert) ××× 0 × × ×× × : No cracks × : Cracks fz = 0.5 mm/t fz = 0.6 mm/t fz = 0.7 mm/t 3,000 6,000 9,000 No. of impacts 12,000 Cutting conditions: Vc = 100 m/min, fz = 0.5 – 0.7 mm/t, ap × ae = 2 × 100 mm (Workpiece with 20 mm width slot) Workpiece: 42CrMo4 (38 – 42 HS) 2
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