2 Low-resistance cutting edge Cutting force (Resultant force) (N) Large rake angle and slanted cutting edge for low-resistance and smooth machining LD chipbreaker Rake angle: large Slanted cutting edge Cutting force comparison (In-house evaluation) 1,000 LD chipbreaker Competitor A 800 Large uctuation 600 30% 400 200 0 0.5 1.0 1.5 2.0 2.5 3.0 Cutting time (sec) Cutting conditions: Vc = 80 m/min, ap = 3 mm, f = 0.07 mm/rev, TNMG160404 Type Workpiece: 15CrMo4 3 Superior chip control in a wide range of machining applications Chipbreaker shape optimized for various depths of cut Stable chip control in a wide range of machining applications Chip control comparison (In-house evaluation) T type (Workpiece diameter: ø25) C45 LD chipbreaker X40CrMoV51 LD chipbreaker Gradually changing chipbreaker width Competitor A × Chip clogging 2.5 4.0 8.0 ap (mm) Cutting conditions: Vc = 80 m/min, f = 0.05 mm/rev, wet (Oil-based), TNMG160404 type X5CrNi1810 LD chipbreaker Competitor A × Chattering 2.5 4.0 8.0 ap (mm) Cutting conditions: Vc = 80 m/min, f = 0.05 mm/rev, wet (Oil-based), TNMG160404 type Competitor A × Chip clogging 2.5 4.0 8.0 ap (mm) Cutting conditions: Vc = 60 m/min, f = 0.03 mm/rev, wet (Oil-based), TNMG160404 type 2
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