3 CVD insert on the outer edge for highly efficient machining High speed and highly efficient machining available with the combination of CVD (outer edge) and PVD (inner edge) inserts Inner edge: PVD (PR1535) Outer edge: CVD (CA520D/CA415D) New grades developed for drilling Vc (m/min) Wear (mm) Recommended cutting conditions (Max. value) 300 280 200 55% 180 100 0 CVD (CA520D) PVD (PR1225) Cutting dia. ø20(3D), workpiece: S50C Wear resistance comparison (In-house evaluation) 0.4 DRV (CA520D) 0.3 Competitor F (CVD) Competitor G (CVD) 0.2 0.1 0 10 20 30 40 50 Cutting time (min) Cutting conditions: Vc = 200 m/min, f = 0.12 mm/rev, cutting dia. ø20(3D), wet, workpiece: SCM440H 4 Economical 4-edge inserts 4 types of chipbreakers for various machining applications General purpose: GM chipbreaker Chipbreaker for steel machining Stable deep-hole machining with low cutting force A A A-A section Edge shape optimized for various machining applications Tough edge: GH chipbreaker 1st recommendation for machining cast iron Good for continuous steel machining Reduced defects common in through-hole machining B B B-B section Negative land with strong edge For stainless steel machining: SM chipbreaker Stable chip control when machining gummy Stainless steel Reduces chip clogging in the holder body C C C-C section Sharp cutting and large rake angle For machining soft steel and SS material: XM chipbreaker Stable chip control of outer cutting edge D E D-D section E-E section Excellent chip control D E with the changing width of the chipbreaker Chip control comparison (In-house evaluation) Outer edge Inner edge DRV (SM chipbreaker) Competitor H Cutting conditions: Vc = 100 m/min, f = 0.1 mm/rev, cutting dia. ø20(3D), drilling depth 60 mm, wet, workpiece: SUS304 Comparison of remaining chips (In-house evaluation) DRV (SM chipbreaker) Competitor I Remaining chips Cutting conditions: Vc = 150 m/min, f = 0.08 mm/rev, cutting dia. ø25(5D), drilling depth 98 mm, wet, workpiece: SUS304 Chip control comparison (In-house evaluation) Outer edge Inner edge DRV (XM chipbreaker) Competitor J Cutting conditions: Vc = 200 m/min, f = 0.12 mm/rev, cutting dia. ø16(3D), drilling depth 48 mm, wet, workpiece: SS400 Chipbreaker selection chart P.3 2
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