Основной каталог Kyocera 2021 - 2022 - страница 21

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HighCutting speedLo wHardness (Hv) HighCutting speedLo w Hardness (GPa) HighCutting speedLo w Insert grades Insert grades Ceramic A Ceramic Ceramics inserts are capable of machining at high speeds. Recommended for hard turning of hardened steel or rough to finish turning of cast iron and heat-resistant alloys. Features • Excellent wear resistance enables high speeds machining of cast iron • Ceramic maintains good surface finishes due to the low affinity to workpiece materials • Silicon nitride ceramic can machine cast iron with coolant due to its superior thermal shock resistance Features of ceramic Main component Coating Hardness of Fracture Transverse Classification Grade Color (Coated toughness strength Advantages and applications composition) layer substrate (GPa) (MPa.m1/2) (MPa) KA30 White Al2O3 17.5 4.0 750 • Aluminum oxide ceramic (Al2O3)• Application: Finishing of cast iron at high cutting speeds without coolant KS6015 Gray Si3N4 15.2 7.8 1,000 • Silicon nitride ceramic with superior wear resistance reduces heat at the cutting edge.-• Application : Roughing and high speed machining of cast iron (with or without coolant) Cast iron • Silicon nitride ceramic (Si3N4) KS6050 Gray Si3N4 • Application: Roughing and interrupted machining of cast iron. Focusing on stability. (with or without coolant) 15.6 8.0 1,200 CS7050 Grayish Si3N4 Thin coating • Silicon nitride ceramic (Si3N4) + CVD Coating (Special Al2O3 COAT)• Application: Finishing and continuous machining, and high speed and high efficient machining. white (Special Al2O3 COAT) (with or without coolant) KT66 Black Al2O3+TiC - • Aluminum oxide and titanium carbide ceramic (Al2O3+TiC)• Application: Semi-roughing to finishing of cast iron, and hard materials Cast iron A66N Gold Al2O3+TiC(TiN COAT) • TiN PVD coated aluminum oxide and titanium carbide ceramic (TiN coated Al2O3+TiN)20.14.1980• Application: Semi-roughing to finishing of hard materials Hard materials Thin coating • Heat-resistant MEGACOAT on aluminum oxide and titanium carbide ceramic PT600M Blackish red Al2O3+TiC (MEGACOAT Al2O3+TiC) (MEGACOAT) • Application: Semi-roughing to finishing of cast iron, hard materials and hardened roll materials KS6030 GrayHeat-resistantalloysSiAlON - 15.2 6.0 600 • SiAlON Ceramic with superior wear resistance and high resistance against boundary wear• Application: Finishing to medium machining of heat-resistant alloys• High stability SiAlON ceramic with wear resistance and fracture resistance KS6040 Brown 16.7 7.0 900 • Application: Roughing of heat-resistant alloys Application map Cast iron Hard materials Heat-resistant alloys KA30 KS6015 CS7050 PT600M CF1 KS6050 PT600M A66N KS6030 KT66 KT66 KS6040 Low Fracture resistance (Toughness) High Low Fracture resistance (Toughness) High Low Fracture resistance (Toughness) High Continuous Light interruption Interruption Continuous Light interruption Interruption Continuous Light interruption Interruption High-Temperature hardness Properties of PVD coating 40 2800 35 2400 Al2O3+TiC Ceramic2000Al2O3 Ceramic 30 TiCN25 TiAIN MEGACOAT 1600 20 TiN 1200 Carbide 15 High speed steel Cermet 10 800 400 600 800 1,000 1,200 1,400 400 Oxidation onset temperature (°C) 0 Low Oxidation resistance High 200 600 1,000 1,400 Temperature (°C) A15