0°/90° High-Speed Cutting Mills • VHSC INDEXABLE MILLING Insert Selection Guide Light General Heavy Material Machining Purpose Machining Group Geometry Grade Geometry Grade Geometry Grade N1–N2 .F..ALP WN10HM .F..ALP WN10HM .E..ALP WN10HM N3 .F..ALP WN10HM .F..ALP WN10HM .E..ALP WN10HM Recommended Starting Speeds [m/min] SOLID END MILLING Material WN10HM Group 1 2950 1800 875 N 2 2950 1800 875 3 1600 850 480 NOTE: FIRST choice starting speeds are in bold type. As the average chip thickness increases, the speed should be decreased. Recommended Starting Feeds [mm] HOLEMAKING Light General Heavy Machining Purpose Machining Programmed Feed per Tooth (fz) Insert as a % of Radial Depth of Cut (ae) Insert Geometry 5% 10% 20% 30% 40–100% Geometry .F..ALP 0,12 0,45 0,81 0,08 0,33 0,58 0,06 0,25 0,43 0,06 0,21 0,38 0,05 0,20 0,35 .F..ALP .E..ALP 0,15 0,50 0,92 0,11 0,36 0,66 0,08 0,27 0,50 0,07 0,24 0,43 0,07 0,22 0,40 .E..ALP NOTE: Use “Light Machining” values as starting feed rate. TAPPING TURNING = A LL-STAR PORTFOLIO PRODUCT. ALL-STAR PRODUCTS ARE PROVEN SOLUTIONS THAT ARE ALWAYS AVAILABLE. widia.com A57