NegativePositivePCD / CBN Depth of cut: ap (mm)Cutting speed: Vc (m/min) Cutting speed: Vc (m/min) Chipbreaker Guide BASIC CHIPBREAKER: POSITIVE TYPE Cast Iron Chipbreaker System for Turning (Positive Type) 4 BX930 T515 BX480 T5115 3 T-CBN CM 2 T5115 1 No chipbreaker 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Feed: f (mm/rev) Grey cast iron Ductile cast iron 600 BX9301000 500 BX930 400 BX480 300 500 200 T515, T5115 T515, T5115 100 0 0.2 0.4 0.6 0.8 0 0.2 0.4 0.6 0.8 Feed: f (mm/rev) Feed: f (mm/rev) Chipbreaker Shape Feature Chipbreaker Shape Feature Excellent performance in high- Highly versatile all-round chipbreaker Nochip-breaker speed finishing of cast iron with CBNsintered body on the cutting edge.CM with low cutting force. Suitable forfinishing to medium cutting. (T-CBN) Suitable for a wide range of No applications from finishing to chip- roughing cast iron. breaker Excellent performance with high cutting edge strength. S TA N D A R D CUTTING CONDITIONS ISO Operation Work condition Chip-breaker Grade Depth of cutap (mm) Feedf (mm/rev) Cutting speed: Vc (m/min)Grey cast ironDuctile cast iron Continuous Without BX930 0.05 - 0.5 0.05 - 0.2 300 - 1200 100 - 500 PrecisionfinishingLight interrupted Without BX480 0.05 - 0.5 0.05 - 0.2 300 - 800 100 - 300 Light interrupted Without BX470 0.05 - 0.5 0.05 - 0.2 300 - 800 100 - 300 Continuous CM T515 0.05 - 2 0.05 - 0.3 150 - 700 150 - 300 Finishing Heavy interrupted CM T515 0.05 - 2 0.05 - 0.3 100 - 200 100 - 200 Mediumcutting Light interrupted CM T515 0.05 - 2 0.05 - 0.3 100 - 300 100 - 250 Grey cast iron: FC250, etc. 250, etc. Ductile cast iron: FCD450, etc. 450-10S, etc. B022 www.tungaloy.com