2 Sharp cutting edge and DLC coating prevent burrs Burr comparison when exiting the slot (Internal evaluation) AP Chipbreaker (PDL010) Competitor A (Carbide) Enlarged view Workpiece Workpiece Grooving Grooving AP chipbreaker (PDL010) suppressed burrs of exiting the slot Cutting conditions: Vc = 400 m/min, ap = 0.25 mm, f = 0.12 mm/rev, CC 09T304 Type, wet, external turning Workpiece : AlMg2.5 27° 5° Sectional shape of corner edge 3 DLC coated grade PDL010 is available Excellent surface finish with aluminum welding resistance Welding resistance comparison (Internal evaluation) Minor welding Welding PDL coating Competitor D Cutting conditions: Vc = 800 m/min, fz = 0.1 mm/t, ap × ae = 3 × 5 mm, dry Cutter dia. ø25 mm Workpiece : AlMg2.5 Cutting length : 57 m Achieves long tool life with hardness close to that of diamond High hardness with Kyocera's proprietary hydrogen-free DLC coating Coating properties (Internal evaluation) Hardness (GPa) 120 100 80 60 40 20 0 200 Diamond PDL010/PDL025 Competitor F Hydrogen-free DLC coating Competitor E DLC coating with hydrogen 400 600 800 Young's modulus (GPa) 1,000 2
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