Общий каталог Dijet 2018 - страница 212

Modular Head Series ResultResult WorkToolCutting conditionsWorkToolCutting conditions Tooling by DIJET Tuff Modular Head System ■ CASE STUDIES 1. Replacement from solid carbide ball nose endmill to indexable tool. Partname Die casting mold Material DH21: Hardened die steel (1.2344MD) Hardness 48HRC Head: MRN-120-M6-H (Through coolant hole) Tool No. Holder: MSN-M6-50-S12C Insert No. HRM-120-R20 (JC8015) Grade n, (Vc) n=4,000min-1,Vc=150m/min Vf,(f ) Vf=4,000mm/min,f=1mm/rev ap 0.25mm We recommend High feed mirror radius instead of solid carbide ball nose end mill of ae 5mm competitor. HRM can machine from roughing to semi-finishing on hardened steel without chat-tering and machine efficiency has been highlyCoolantWet cu t(Coolant through) improved and also chip clogging problem solved because of coolant was flushed throughcoolant hole. Machine Vertical MC 2. Replacement to coolant through modular head. Partname Injection mold Material P20 Mold steel (PX5) Hardness 28-32HRC Head: MRN-120-M6-H (Through coolant hole) Tool No. Holder: MSN-M6-90S-S12C Insert No.Grade HRM-120-R20 (JC8015) n, (Vc) n=3,000min-1,Vc=113m/min Vf, (f ) Vf=1,500mm/min, f=0.5 mm/rev ap 0.5mm At 50mm deep cavity milling, competitor’s toolwithout through coolant hole was damagedae 4mm due to unable to flush the chips in the cavity and it was replaced with MRN Head+MSNShank with through coolant hole. It was obser-Coolant Internal air blow ved the tool life at high feed cavity milling was more than 2 hours without any damage. Machine Vertical MC B196