3 Excellent surface finish WP chipbreaker offers excellent surface roughness across a wide range of cutting conditions Surface finish comparison (Internal evaluation) 20 f = 0.1 mm/rev WP chipbreaker f = 0.4 mm/rev WP chipbreaker Surface roughness Rz (μm) 15 Rz = 2.7 μm Rz = 6.7 μm 10 Competitor B Competitor B 5 WP chipbreaker Rz = 15.4 μm Competitor B Competitor C Competitor C 0 0 0.1 0.2 0.3 0.4 0.5 0.6 Feed rate (mm/rev) Rz = 10.6 μm Cutting conditions: Vc = 150 m/min, ap = 0.5 mm, wet Toolholder: A20R-SCLCR09-22AE Insert: CCMT09T304 type Workpiece: 15CrMo4 Rz = 10.0 μm Competitor C Rz = 13.2 μm 4 Reduces galling for better surface finish WP chipbreaker reduces tearing of the finished surface by controlling adhesion with the newly designed wiper edge WP chipbreaker Competitor D (Wiper edge) Cutting conditions: Vc = 80 m/min, ap = 0.73 mm, f = 0.05 mm/rev, wet Insert: CCMT09T304 type Workpiece: ST45 (steel pipe) 5 High machining accuracy with low radial forces Prevents tool deflection by reducing radial forces Cutting force (N) Cutting Force (N) Cutting force comparison (Internal evaluation) f = 0.1 mm/rev 350 300 250 200 Radial force 150 14% 100 50 0 WP chipbreaker Competitor E 350 Radial force f = 0.4 mm/rev 300 14% 250 200 150 100 50 0 WP chipbreaker Competitor E Cutting conditions: Vc = 200 m/min, ap = 0.3 mm, wet Toolholder: A20R-SCLCR09-22AE Insert: CCMT09T304 type Workpiece: 15CrMo4 2 Principal force Radial force Feed force
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