Общий каталог Sumitomo 2019 - 2020 - страница 1043

SUMIBORON Surface Roughness Rz ( μ m) No. of Workpieces (pcs) No. of Workpieces (pcs) Cutting Distance 5.7kmCutting Distance 4km No. of Workpieces (pcs)No. of Workpieces (pcs) Coated SUMIBORON for Hardened Steel Machining BNC2010 / BNC2020 Hardened Steel ■ Cutting Performance ● BNC2010 ● BNC2020 7 After Cutting 8km After Cutting 5km Conventional Coated CBN ■ 6 BNC2020 5 L After Cutting 3km 4 ■ Notch wear occurs● ConventionalCoated CBN 3 ■ After Cutting 8km 2 ● BNC2010● After Cutting 2.5km ●■1 Competitor'sCoatedCBN 0 2 4 6 8 0 2.5 5.0 Cutting Distance (km) Reduces notch wear Tool Life (km) Work Material: SCM415 58-62HRC (Continuous) Work Material: SCM415-5V 58-62HRC (Interrupted Cutting) Tool Cat. No.: 4NC-DNGA150408 Cutting Edge Treatment: S01225 Tool Cat. No.: 4NC-CNGA120412 Cutting Edge Treatment: S01225 Cutting Conditions: vc = 160m/min, f = 0.08mm/rev, ap = 0.1mm Wet Cutting Conditions: vc = 130m/min, f = 0.1mm/rev, ap = 0.6mm Dry ■ Application Examples BNC2010 BNC2020 [Continuous External Turning of Main Shaft] (58 to 60 HRC) [Carburised Layer Removal for Sun Gear] (58 to 60 HRC) BNC2010 provides excellent wear resistance and BNC2020 achieves long tool life in high load cutting. achieves excellent surface roughness. 100 300 Tool life 2.3x Tool life1.5x 200 50 100 0 0 Surface Roughness Ra = 0.6μm BNC2010 Conventional Coated BNC2020 Conventional Coated CBN CBN Tool Cat. No.: 4NC-DNGA150408 (BNC2010) Tool Cat. No.: 4NC-CNGA120408 (BNC2020) Cutting Conditions: vc = 200m/min, f = 0.10mm/rev, ap = 0.35mm Dry Cutting Conditions: vc = 100m/min, f = 0.15mm/rev, ap = 0.5mm Wet [Facing of CVJ Outer Race] (58 to 60 HRC) [Interrupted Machining of CVJ Cage Window] (58 to 60 HRC) BNC2010 with a WH type wiper insert maintains BNC2020 strong edge HS type provides stable performance excellent surface roughness for a long time. in interrupted cutting. 700 300 Tool life1.8x Tool life1.5x 500 200 300 100 0 0 Surface Roughness Rz = 1.6μm BNC2010 Conventional Coated BNC2020 Conventional Coated WH Type CBN HS Type CBN (Wiper Insert) (Strong edge type) Tool Cat. No.: 4NC-CNGA120412WH (BNC2010) Tool Cat. No.: 6NC-TNGA160420HS (BNC2020) Cutting Conditions: vc = 150m/min, f = 0.2mm/rev, ap = 0.2mm Dry Cutting Conditions: vc = 120m/min, f = 0.10mm/rev, ap = 0.15mm Dry L13