Общий каталог Sumitomo 2019 - 2020 - страница 1047

SUMIBORON Flank Wear Width (mm)Flank Wear Width (mm)Work Diameter Variance (μm) Surface Roughness Rz (μm) SUMIBORON for Hardened Steel Machining BN1000 / BN2000 Hardened Steel ■ Cutting Performance ● BN1000 ● BN1000 / BN2000 Wear Resistance (Continuous Cutting) Chipping Resistance (Interrupted Cutting) 0.16 Competitor's CBN 0.14 BN1000 Approx. 2 times that of conventional tools 0.12 0.100.08 BN1000 Greatly improved fracture resistance while also emphasizing wear resistance L 0.06 Conventional 0.04 CBN (1) 0.02 0 1 2 3 Cutting Distance (km) Competitor's Work Material: SUJ2 Round Bar (58 to 62HRC) CBN (1) Tool Cat. No.: 2NU-CNGA120408 Cutting Conditions: vc = 150m/min, f = 0.1mm/rev, ap = 0.2mm Dry BN2000 Approx. 1.4 times that of conventional tools ● BN2000 Excellent fracture resistance compared with conventional tools Wear Resistance (Continuous Cutting) Conventional 0.25 Breakage - Cannot ContinueConventional CBN CBN (2) 0.20 BN2000 Able to Continue 0.15 Competitor's CBN (2) 0.10 0.05 0 50 100 150 0 2 4 6 8 10 Tool Life Comparison (BN2000s previous CBN as 100%) Cutting Distance (km) Work Material: SCM415H Round Bar (58 to 62HRC) Work Material: SCM415H 8V Grooved (58-62HRC) Tool Cat. No.: 2NU-CNGA120408 Tool Cat. No.: 2NU-CNGA120408 Cutting Conditions: vc = 100m/min, f = 0.1mm/rev, ap = 0.2mm Dry Cutting Conditions: vc = 150m/min, f = 0.1mm/rev, ap = 0.2mm Dry ■ Machining Precision ● BN1000 ● BN2000 Dimensional Tolerance Comparison (Continuous Cutting) Surface Roughness Comparison (Continuous Cutting) 10 Competitor's CBN 4 Competitor's CBN 8 3 Conventional CBN 6 BN1000 2 4 BN2000 2 1 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 1 2 3 4 5 6 7 Cutting Distance (km) Cutting Distance (km) Work Material: SCM415H ø130 O.D. (58 to 62 HRC) Work Material: SCM415H Round Bar (58 to 62HRC) Tool Cat. No.: 2NU-CNGA120408 Tool Cat. No.: 2NU-CNGA120408 Cutting Conditions: vc = 200m/min, f = 0.1mm/rev, ap = 0.1mm Wet Cutting Conditions: vc = 100m/min, f = 0.08mm/rev, ap = 0.2mm Dry L17