Общий каталог Dijet 2018 - страница 394

Tooling by DIJET Indexable Tools Mirror Ball BnMTyPE ■ CASE STUDIES 1. Replacement of solid carbide ball nose end mill with Mirror ball. Overhung length: 40mm Part name Turbine blade Work Material Stainless steel (SUS420) Hardness — Tool No. BNMM-080035S-S08C Tool Grade BNM-080 (JC5015) Vc, (n) n=2,000min-1, Vc=50m/min Vf, (f) Vf=800mm/min, f=0.4mm/rev Cutting conditions ap (mm) 0.15mm Mirror ball achieved very good finishing. ae (mm) 0.15mm Result No chatter marks was observed on blade surface compared with the competitor’s Coolant Oil coolant solid carbide ball nose end mill. Machine Vertical MC 2. Replacement of steel shank body with carbide shank body. Part name Stamping die Work Material GM241 (Cast steel) Hardness 250-300 HB Tool No. BNML-300170S-S32C (C Body) Tool Grade BNM-300, JC5015 Vc, (n) 6,000min-1, 565m/min Vf, (f) 5,000mm/min, 0.83mm/rev Cutting conditions ap (mm) 0.1mm Achieved long tool life 5,080m and ae (mm) 0.7mm Result improved surface roughness compared with exisiting steel shank. Reduced the Coolant Dry hand finishing process by 10 hours. Machine Double column MC 3. Replacement of solid carbide ball nose end mill. Semi-Finishing・Finishing by Carbide Shank Part name Rubber mold Work Material SUS630 Hardness 35HRC Tool No. BNMM-060035S-S06C (C Body) Tool Grade BNM-060, JC5015 Vc, (n) 14,400min-1, 271m/min Vf, (f) 2,880mm/min, 0.2mm/rev Cutting conditions Tool life: 2 hours ap (mm) Semi-fnishing 0.1mm, Finishing 0.05mm Exisiting solid carbide ball nose end mill ae (mm) 0.1mm Result n=9,000min-1, Vf=2,800mm/min Improved machining time by 20%. Next Coolant Mist coolant polishing process is drastically reduced. Machine High speed vertical MC C182