Каталог Sumitomo токарные резцы (державки) для наружного точения - страница 6

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SEC- Double Clamp D Type ■ Characteristic ● Insert fracture resistance improved by stable clamp ● Dimensional accuracy improved by high-index accuracy ● Insert exchange operation possible from back side ● Optimal for highly efficient, interrupted, and high hardness materials cutting C External Holders ■ Clamp Mechanism ■ Index Accuracy Comparison (Lengthswise) Secured in two directions and supported by two faces D Type Holders Dimensional variation 0.02 Negative Inserts （mm） 0 1 2 3 4 5 6 7 8 9 10 -0.02 Number of cycles C Lever Lock Dimensional variation 0.02 D （mm） 0 1 2 3 4 5 6 7 8 9 10 R Insert replacement operations possible from back side -0.02 Number of cycles S ■ Application Examples T Impfroorveindtefrrraucptutered resistance dimensiSotnaablleaccuracy! cutting! V Interrupted Cut workpieces 1,000 Wear ø40.0 ±0.01 W 800 1.7 times 600 Breakage Special type Number of 400 200 0 D Type Conventional Holders Holders Holder: DCLNL2525M12 Holder: DTGNR2525M16 Insert: CNMG 120408N-SU Insert: 6NC-TNGA160408 Grade: EH510Z (→ switching to AC510U completed) Grade: BNC150 (→ switching to BNC160) Work material: Sintered alloy 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