Общий каталог Dijet 2018 - страница 477

Tooling by DIJET Indexable Tools Back & Forth Cutter PFCTYPE ■ CASE STUDIES Overhung length: 400mm Part name Stamping die Work Material FC250 Hardness − Tool No. PFC-6063R-22 Tool Before After Grade DPGT0903-W3 JBN500 Vc,(n) 6,000 (min-1), 1,18 (m/min) Cutting conditions Vf, (f z) 6,000 (mm/min) ae (mm) 0.05 (mm) After 3 hours machining, inserts did not show ap (mm) 0.50 (mm) Result any chipping and wear. Excellent surface quality and tool life. Surface roughness and Coolant Dry deflection was below 0.01mm Machine Double column MC ■ RECOMMENDED CUTTING CONDITIONS Work Insert Cutting speed Feed per tooth fz Depth of cut Materials Grades Vc (m/min) (mm/t) ap (mm) Cast iron JBN500 1,200 (800~2,000) 0.1 (0.05~0.15) 0.05~0.1 FC250 160-260HB JC8003 400 (300~500) 0.1 (0.05~0.15) 0.05~0.5 Nodular cast iron JBN500 1,000 (600~1,500) 0.1 (0.05~0.15) 0.05~0.1 FCD600 170-200HB JC8003 300 (200~400) 0.1 (0.05~0.15) 0.05~0.5 Carbon & Alloy steel S50C, SCM440 JC8003 200 (100~300) 0.1 (0.05~0.15) 0.05~0.2 ■ NOTE 1) In case chatter occurrs and unsatisfactory surface quality due to machine and work rigidi- ty, recommend to reduce spindle speed or feed per tooth. 2) In case of using as face mill, recommend to reduce feed per tooth up to 0.05mm. C265