Общий каталог Sumitomo 2018 - 2019 - страница 488

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H Hardened Steel Coated / Uncoated SUMIBORON BNC300 / BN350 The ultimate grades BNC300 and BN350 in interrupted machining of hardened steel BNC300 - General Featuresl BNC300 CBN substrate that emphasizes on toughness coupled with a highly wear resistant TiAIN based coating layer that has improved adhesion strength. With a good balance of fracture and wear resistance, stable and longer tool life can be achieve in interrupted cut or in a mixture of continuous and interrupted cutting. l BN350 SUMIBORON series highest fracture resistance and toughest CBN. BN350 Reliable grade for achieving stable tool life in heavy interrupted cutting conditions. - Characteristics BNC300 l Stable and long tool life in interrupted cutting Achieving stable and long tool life in heavy interrupted cutting, with superior fracture resistance. l Superior dimensional precision Good adhesion strength, TiAIN based, high wear resistance coating. Achieving superior dimensional precision even in interrupted cutting. l Suitable for different types of workpieces Achieving significantly longer tool life even on workpieces that have a mixture of continuous and interrupted cutting. BN350 l Stable and long tool life in interrupted cutting Stable and long tool life with superior fracture resistance, that prevents fractures which commonly occurs during interrupted cutting. - Performance Continuous ~ Light Interrupted Machining Heavy Interrupted Machining (Frequency of Interruption 50%) (Frequency of Interruption 100%) Competitor´s Competitor´s coated CBN BN350 uncoated CBN BNC300 (Breakage) (Breakage) (Breakage) BNC300 BN350 Prolonged Prolonged Performance Performance Cutting Length (km) Cutting Length (km) Work material: 15CrMo5 (HRC58-62) Work material: 15CrMo5 (HRC58-62) Insert type: CNGA 120408 NC-4 Insert type: CNGA 120408 NU-2 Cutting data: vc = 120 m/min, f = 0,1 mm/rev, doc = 0,2 mm, Dry Cutting data: vc = 100 m/min, f = 0,1 mm/rev, doc = 0,2 mm, Dry - Recommended Application Range 1 Recommended Cutting Conditions l Coated SUMIBORON l Uncoated SUMIBORON (BNC300, BN350) vc (m/min) f d oc 50 100 150 200 (mm/rev) (mm) BNC100 B1N60C l l l l80120BN1000BNX20BNX250,03 - 0,20,03 - 0,3 BNC200 BNC300 BN2000 BN350 1 Coolant ... Interrupted cutting: Dry Interruption Interruption Strength Strength light medium heavy light medium heavy Frequency of Frequency of Interruption Interruption L17 (mm)Width of Flank Wear(m/min)Cutting speed (m/min)Cutting speed (mm)Width of Flank Wear SUMIBORON