Общий каталог Sumitomo 2019 - 2020 - страница 176

SEC- Double Clamp D Type Tool Holders ■ Features ● Insert is clamped stably for improved fracture resistance ● High index accuracy improves machining accuracy External Holders ● Insert can be changed from below the holder ● Suitable for high-efficiency machining and interrupted cutting of hardened steel C Neg. ■ Clamp Structure ■ Index Accuracy Comparison (Lengthwise) Secured in two directions and supported by two faces D Type Tool Holders Dimensional Variation Pos. 0.02 0 (mm) 1 2 3 4 5 6 7 8 9 10 C -0.02 No. of Indexes D Lever Lock Dimensional Variation 0.02 R 0 (mm) 1 2 3 4 5 6 7 8 9 10 Insert can be changed from below the holder -0.02 S No. of Indexes T ■ Application Examples ture resistance Stable Improved frac d cutting! al toleranc e! during interrup te dimension V ø40.0 ±0.01 W End of life by wear Interrupted Machining 1,000 No. of Workpieces (pcs) 1.7x 800 End of life Special 600 by breakage 400 200 0 D Type Conventional Tool Holders Holder Tool Holder: DCLNL2525M12 Tool Holder: DTGNR2525M16 Insert: CNMG 120408N-SU Insert: 6NC-TNGA160408 Grade: EH510Z (Changed to AC510U) Grade: BNC150 (Changed to BNC2010) Work Material: Powdered Metal Work Material: SCR420H (60HRC) Cutting Conditions: vc=150m/min, f=0.3mm/rev, ap=0.2mm Wet Cutting Conditions: vc=150m/min, f=0.15mm/rev, ap=0.1mm Dry C6