Общий каталог Sumitomo 2018 - 2019 - страница 485

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Coated SUMIBORON H Hardened Steel BNC100 Coated Sumiboron premium grade for high speed machining of hardened steels - General Features Our copper coloured Sumiboron grade BNC 100 resists premature plastic deformation of the cutting edge by withstanding the high temperatures that occur when machining hardened steels. This new grade features a heat resistant CBN substrate and a special TiCN based ceramic coating to enhance surface finish across a broad range of finishing applications at elevated cutting speeds. Ideal for higher speed machining and suitable for continuous or light interrupted cuts BNC100 delivers reliable performance and excellent tool life - Advantages l High speed machining! Suitable for continuous to light interrupted high speed cutting with vc = 150 ~ 300 m/min. l Extended tool life! Wear resistant ceramic coating and tough CBN substrate considerably extends tool life. l Excellent surface finish! A consistent surface finish to values less than 6,3 Rz is easily achieved on both continuous and light interrupted cut applications. - Performance Flank wear comparison Competitor´s Surface roughness comparison Competitor´suncoated CBN coated CBN(Chipping)(Chipping) Competitor´s uncoated CBN Competitor´scoated CBN BNC100 BNC100 Cutting Length (km) Cutting Length (km) Work material: 15CrMo5 (Carburised steel) HRC58-62 Work material: 15CrMo5 (Carburised steel) HRC58-62 Insert type: CNGA 120408 NC-4 Insert type: CNGA 120408 NC-4 Cutting data: vc = 250 m/min, f = 0,08 mm/rev, doc = 0,1 mm, Dry Cutting data: vc = 250 m/min, f = 0,1 mm/rev, doc = 0,1 mm, Dry - Application Range - Recommended Cutting Conditions Continuous Cutting Interrupted Cutting vc (m/min) f d oc 100 l 150 l 200 l 250 l 300 l (mm/rev) (mm) 0,03 - 0,2 0,03 - 0,3 Coolant ... Continuous cutting: Dry or Wet Interrupted cutting: Dry Interruption Strength light medium heavy Depth of Cut(mm) Frequencyof Feed Rate Interruption (mm/rev) L14 SUMIBORON (m/min)Cutting Speed (mm)Width of Flank Wear (m/min)Cutting Speed Surface Roughness Rz (μm)