Общий каталог Sumitomo 2019 - 2020 - страница 21

Chipbreaker and Grade Selection Guide for Turning Material Work Hardened Steel Hardened Steel Grades BNC2010 / BNC2020 / BN1000 / BN2000 BNC2010 : For high-precision finishing requiring good surface roughness and dimensional tolerance. Maintains excellent surface roughness thanks to coating with high boundary wear resistance and CBN substrate. Insert Grades BNC2020 : General-purpose grade suitable for typical hardened steel machining applications. Achieves long tool life thanks to highly wear-resistant, highly adhesive coating and tough CBN substrate. BNC2010 / BNC2020 BN1000 : For high-speed machining, BN1000 provides the highest wear resistance of all uncoated SUMIBORON grades, improving fracture resistance while maintaining an emphasis on wear resistance. BN2000 : General-purpose grade for general hardened steel machining with a high degree of fracture and wear resistance. A Performance Steel BNC2010 BNC2020 ● Continuous Cutting of Hardened Steel ● Interrupted Cutting of Hardened Steel Stable cutting Stainless 7 After Cutting 8km After Cutting 5km Steel Conventional Tool ■ 6 BNC2020 Surface Roughness Rz ( μ m) 5 After Cutting 3km Cast Iron 4 ■ Conventional Tool ● Boundary wear occurs Conventional After Cutting 8km Tool 3 ■ ● 2 ● BNC2010 After Cutting 2.5km Exotic Alloy ■ ● Competitor's 1 Product A 0 BNC2010 2 4 6 8 0 2.5 5.0 Reduces boundary wear Cutting Distance (km) Tool Life (km) Hardened Work Material: SCM415 58-62HRC (Continuous) Work Material: SCM415-5V 58-62HRC (Interrupted Cutting) Steel Insert: 4NC-DNGA150408 Cutting Edge Treatment: S01225 Insert: 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 Non-Ferrous BN1000 / BN2000 Metal ● Wear Resistance (Continuous Cutting) ● Chipping Resistance (Interrupted Cutting) (Conventional tool A as 100%) 0.25 For Small Breakage Able to (mm) (mm) BN2000 Lathes Competitor's Product B Unable to Continue 0.25 0.20 Continue Able to Breakage BN2000 BN2000 Approx. 1.4 times that of conventional tools! Width Competitor's Product B Unable to Continue 0.20 0.15 Breakage caused by crater wear Continue Width BN2000 Conventional WearWear 0.10 Competitor's 0.15 Breakage caused by crater wear Product B BN2000 Tool A 0.10 0.05 Competitor's FlankFlank Product B Fracture life improved! 0.05 Competitor's 0 Fracture life improved! Product D 2 4 6 8 10 0 Cutting Distance (km) 2 4 6 8 10 Work Material: SCM415H Round CuttingBar (58-62HRC) Insert: 2NU-CNGA120408 Distance (km) BN1000 Approx. double that of conventional tools! Cutting Conditions: 0.16 vc=100m/min, f=0.1mm/rev, ap=0.2mm Dry Competitor's Conventional (mm)(mm) Competitor's Product C 0.16 Product C 0.12 Competitor's Product C Competitor's BN1000 Tool B Width Product C Unacceptable Amount of Wear Competitor's 0.12 BN1000 Width 0.08 BN1000 Product E WearWear Unacceptable Amount of Wear 0.08 0.04 BN1000 FlankFlank Excellent wear resistance! 0 50 100 150 0.04 0 Tool Life Ratio (%) 1 2Excellent wear resistance! 3 0 Cutting Distance (km) 1 2 3 Cutting Distance (km) Work Material: SUJ2 Round Bar (62HRC) Work Material: SCM415H 8V Grooved (58-62HRC) Insert: 2NU-CNGA120408 Insert: 2NU-CNGA120408 Cutting Conditions: vc=150m/min, f=0.1mm/rev, ap=0.2mm Dry Cutting Conditions: vc=150m/min, f=0.1mm/rev, ap=0.2mm Dry A21