Общий каталог Dijet 2018 - страница 521

Solid Carbide End Mills Tooling by DIJET “One-Cut Ball 70” Ball Nose End Mill DH-OCHBTYPE ■ CUTTING PERFORMANCES 1. Tool life test for face milling on 70 HRC Work: HSS (70HRC) Tool: DH-OCHB4100(R5) Spindle speed: n=3,800min-1 Cutting speed: Vc=120m/min Feed speed: Vf=1,050mm/min feed per tooth:fz=0.07mm/t Depth of cut: ap=0.2mm Pick feed: ae=0.3mm Coolant: Dry Machine: Vertival MC 2. High efficient helical milling on high hardened steel Work: 1.2379 (60HRC) Tool: DH-OCHB4100(R5) Spindle speed: n=3,800min-1 Cutting speed: Vc=120m/min Feed speed: Vf=1,834mm/min feed: f=0.48mm/rev Hertical pitch: 0.3mm Hole size: φ12.6mm Drilling depth: 6mm(thru.) Coolant: Air blow Overhung length: 50mm Machine: Vertival MC Compared with current drill for high hardened steel, One-Cut Ball 70 achieved good result: Reduced machining time (60sec. to 15sec./hole). No cutting fluid necessary. Intensive tool management can be possibe because of wide applicable hole range by 1 pc. Longer tool life (tens to over 180 holes). After 180 holes (cutting length: 1.08m) No workpiece edge chipping, achieved goog hole accuracy. D039