Copy Mills Copy Mills • M270™ Series Recommended Starting Feeds Recommended Starting Feeds [mm] Light General Heavy Machining Purpose Machining At 0,90 Axial Depth of Cut (ap) • HF16 Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry HF 1,03 1,60 3,34 0,69 1,00 1,50 0,50 0,71 1,03 0,43 0,61 0,88 0,39 0,56 0,80 HF At 0,90 Axial Depth of Cut (ap) • HF17 Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry HF 1,06 1,63 3,00 0,71 1,03 1,52 0,51 0,73 1,05 0,44 0,63 0,90 0,40 0,57 0,82 HF At 1,10 Axial Depth of Cut (ap) • HF20 Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry HF 1,01 1,69 2,74 0,69 1,09 1,57 0,50 0,78 1,10 0,44 0,67 0,94 0,40 0,61 0,86 HF NOTE: Use “Light Machining” value as starting feed rate. widia.com M129