Основной каталог Kyocera 2021 - 2022 - страница 676

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MagicDrill DRA Applicable inserts For cast iron KM Special chisel cutting edge design improves hole accuracy and tool life. Chisel edge design for excellent hole accuracy when 1 machining cast iron Improved centripetal force with special chisel design reduces hole diameter variation during high-feed machining. K Hole diameter variation related to feed rate (Internal evaluation) Drilling 0.02 DRA (KM) Competitor L Diameter variation (mm) DRA (KM) Variation from the hole diameter at f = 0.25 mm/rev Competitor L Competitor M 0.01 0 0.20 0.30 0.40 0.50 9.28 μm 13.27 μm f (mm/rev) Cutting conditions: Vc = 100 m/min, f = 0.25 – 0.48 mm/rev Cutting conditions: Vc = 100 m/min, f = 0.25 mm/rev Drilling diameter ø14, L/D = 5, measurement position 5 mm, wet, Workpiece: 600-3 Drilling diameter ø14, L/D = 5, measurement position 5 mm, wet, workpiece: 600-3 2 Fracture resistance Large corner chamfer prevents fracturing and provides stable machining at high-feed and high load machining. K6