Общий каталог Sumitomo 2019 - 2020 - страница 713

Flank Wear Width (mm) Flank Wear Width (mm) UncoatedCoatedCFRPNon-ferrousMetalRoughingHardenedSteelHighEfficiencyGeneral-purposeMulti-PurposeBallnoseRadiusSquareEndmills MOLD FINISH MASTER Ballnose SUMIBORON Mold Finish Master Ballnose SUMIBORON Mold Finish Master R BNBP Type H R BNBC Type For CopperElectrodes Ball Ball ● A chieves high precision machining with precise ball radius of ±0.005mm. ● Ballnose radii of 0.1 to 0.5mm are covered by this series. ● Combination of SUMIBORON BN350 with excellent ● Achieves high quality milling with high precision cutting edge. fracture resistance and cutting edge designed with negative rake angle provides stable, interrupted cutting. High edge sharpness and wear resistance StCroutntging Edge! Large Negative Rake Angle Sharp Cutting Edge I Central edge stabilizes machined surface quality ● S trong cutting edge enables use in roughing applications ● Achieves further improved tool life MOLD FINISH MASTER Coated Carbide MOLD FINISH MASTER Competitor’s Carbide + CrN-Coated Product No fracture Breakage on central edge Low Wear (Cutting Length 400mm) High Wear (Cutting Length 100mm) Work Material: STAVAX(52HRC) Work Material: Tough-Pitch Copper (Side Milling) Tool: BNBP 2R100-0554 (R1.0) Tool: BNBC 2R030-0304 (R0.3) Cutting Conditions: n = 25,000min-1, vf = 1,500mm/min Cutting Conditions: n = 30,000min-1, vf = 700mm/min ap = 0.10mm, pf = 0.20mm Oil Mist ap = 0.035mm, ae = 0.03mm Oil Mist ● Excellent wear resistance and machined surface quality ● Adoption of material with high CBN content provides excellent edge-sharpness performance and wear resistance. 0.04 0.04 Large wear - burr formation Carbide + CrN Coat Coated Carbide0.03 0.03 0.02 0.02 MOLD FINISH MASTER BNBC Type Small amount 0.01 Difference in Tool Life 0.01 MOLD FINISH MASTER of wear Longer Tool Life BNBP Type 0 0 0 50 100 150 200 250 4 8 12 20 30 40 60 80 100 120 200 250 300 350 400 Cutting Length (m) (0.5h) (1h) (2h) (4h) (11h) (14h) Cutting Length (m) (Cutting Time) Tool Wear Comparison Tool Wear Comparison MOLD FINISH MASTER (6 passes) Coated Carbide (2 passes) MOLD FINISH MASTER Competitor’s Carbide + CrN-Coated Product Small amount of wear Large amount of wear Microwear, can still be used Large amount of wear Ra 0.347 Ra 1.368 Good machined surface Burr formation Good cutter mark surface on BNBC Type Work Material: STAVAX(52HRC) Work Material: Tough-Pitch Copper Tool: BNBP 2R030-0154 (R0.3) Tool: BNBC 2R030-0304 (R0.3) Cutting Conditions: n = 25,000min-1, vf = 1,500mm/min Cutting Conditions: vc = 57m/min, n = 30,000min-1 ap = 0.05mm, pf = 0.10mm Oil Mist fz = 0.007mm/t, vf = 400mm/min ap = 0.005mm, ae = 0.05mm Oil Mist I29