
Tooling by DIJET Indexable Tools Mirror Radius HRMTyPE ■ CASE STUDIES 6. Replacement of solid carbide ball nose end mill with Mirror radius Part name Electric parts Work Material S50C Hardness − Tool No. RNMS-060015U-S06C Tool Grade HRM-060-R15, JC8015 Vc, (n) n=8,000min-1, Vc=150m/min Cutting conditions Vf, (fz) Vf=6,400mm/min, f=0.8mm/rev ap (mm) 0.2mm ae (mm) 0.2mm 3.3 times more productivity and Result 1.2 times longer tool life than exisiting Coolant Water soluble (External) solid carbide ball nose end mill. Machine Vertical MC 7. Improved efficiency on mold steel Overhung length: 285mm Part name Injection mold Work Material Pre hardened steel Hardness 28HRC Tool No. RNMM-160070S-S16C Tool Grade HRM-160-R30, JC8015 Vc, (n) 3,600min-1, 181m/min Vf, (fz) 4,000mm/min, 1.1mm/rev Cutting conditions ap (mm) 0.5mm (30’ ramping until 70mm) ae (mm) 8mm Reduced the machining time 1/2 of the Result competitor’s. Coolant Air blow Less vibration and stable machining Machine Horizontal MC (22kW) C203