Общий каталог Sumitomo 2019 - 2020 - страница 827

Stock DC ±0.03 ap DMM h6 UncoatedCoatedCFRPNon-ferrousMetalRoughingHardenedSteelHighEfficiencyGeneral-purposeMulti-PurposeBallnoseRadiusSquareEndmills SUMIBORON Ballnose Endmills BNBS Type Pre-hardenedSteelHardenedSteel45 to 55HRCHardenedSteel55 to 60HRCHardenedSteel60 to 65HRC Ballnose Flutes Side Milling Face Milling R-Grooving Profiling Fig 1 RE ±0.02 APMX LF I Body Dimensions (mm) Cat. No. RadiusRE Dia.DC Cutting Edge Length Overall LengthAPMXLF Shank Dia.DMM Fig BNBS 2020S ● 1.0 2.0 1.5 50 4 1 BNBS 2030S ● 1.5 3.0 2.0 60 6 1 BNBS 2040S ● 2.0 4.0 3.0 70 6 1 BNBS 2060S ● 3.0 6.0 4.5 80 6 1 BNBS 2080S ● 4.0 8.0 5.5 90 8 1 BNBS 2100S ● 5.0 10.0 6.5 100 10 1 BNBS 2120S ● 6.0 12.0 7.5 110 12 1 Grade: BN350 Recommended Cutting Conditions 1. Use a rigid machine and select a high cutting speed with a low feed rate. 2. Use dry cutting conditions. 3. Make overhang as short as possible. 4. If the work material hardness is lower than 50HRC, try the GS MILL Hard Ballnose instead ( → I132). Radius Milling Work Material Hardened Steel Hardened Steel pf Cutting (50-57HRC) (58-65HRC) Conditions RE (mm) Spindle Speed Feed Rate Spindle Speed Feed Rate(min-1)(mm/min)(min-1)(mm/min) 1.0 26,000 1,100 22,000 670 1.5 18,000 700 15,000 450 2.0 13,000 530 11,000 330 3.0 8,800 610 7,400 450 4.0 6,600 460 5,600 330 5.0 5,300 630 4,500 400 6.0 4,400 530 3,700 330 Standard ap 0.01DC 0.01DC Depth of Cut pf 0.02DC 0.02DC I143