Режущие и зажимные инструменты Hoffmann Group 2026 - страница 176

GBP 57 MAGIC DRILL DRV – INDEXABLE INSERT DRILLING FOR RELIABLE TOP PERFORMANCE. Highly efficient machining with high cutting speeds and feed rates thanks to the combination of a CVD-coated insert for the outer edge and a PVD-coated insert for the inner edge. Inner edge: PVD (PR1535) Outer edge: CVD (CA520D/ CA415D) Wide range of drilling toolholders Bore diameter from 2×D to 6×D. from 12 mm to 60 mm. Overview of insert grades: P10 P20 P30 P40 M10 M20 M30 M40 K01 K010 K20 K30 CA520D CA415D Outer edge PR1225 23 Inner edge PR1535 General machining: For machining unhardened steel and structural steel: GM chip breakers XM chip breakers ɾ Chip breaker for ɾ Stable chip control on the machining of stainless steels. outer cutting edge of the indexable insert. ɾ Stable deep-hole machining with low cutting force. A D E Outstanding chip control thanks to changing width of the chip breaker. A D E Edge shape optimised for various machining applications. Cross-section A-A Cross-section D-D Cross-section E-E For machining stainless steel: Stable cutting edge: SM chip breakers GH chip breakers ɾ Stable chip control when machining ɾ First choice for machining gummy materials. grey cast iron. ɾ Stainless steel. ɾ Good for interrupted machining of steel. ɾ Reduces chip clogging C in the holder body. B ɾ Fewer defects, such as those that frequently occur in through-hole machining. C B Sharp cutting and a Negative land large rake angle. Cross-section C-C with strong edge. Cross-section B-B 176