Copy Mills Copy Mills • M270™ Series Recommended Starting Speeds Recommended Starting Speeds [m/min] MaterialGroup TN2505 TN6525 TN6540 1 550 420 360 410 320 280 360 280 240 2 320 240 205 320 250 215 250 190 170 3 320 240 205 280 215 185 215 170 140 P 4 – – – 235 170 145 180 130 110 5 – – – 310 235 200 240 180 150 6 – – – 205 160 130 160 120 100 1 – – – 190 120 80 130 80 60 M 2 – – – 120 80 50 80 50 40 3 – – – 125 80 55 85 50 40 1 400 300 250 275 245 220 220 205 180 K 2 540 365 280 215 190 180 175 155 140 3 310 190 155 180 160 145 155 145 125 1 – – – – – – – – – N 2 – – – – – – – – – 3 – – – – – – – – – 1 – – – – – – 50 35 30 2 – – – – – – 25 20 10 S 3 – – – – – – 70 40 30 4 – – – – – – 60 30 25 1 175 140 95 – – – – – – H 2 175 140 95 – – – – – – 3 140 115 80 – – – – – – NOTE: FIRST choice starting speeds are in bold type. As the average chip thickness increases, the speed should be decreased. Recommended Starting Feeds Recommended Starting Feeds [mm] Light General Heavy Machining Purpose Machining At 0,60 Axial Depth of Cut (ap) • HF10 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 1,57 – 0,67 0,97 1,41 0,48 0,69 0,97 0,42 0,59 0,83 0,38 0,54 0,75 HF At 0,60 Axial Depth of Cut (ap) • HF12 Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry HF 0,91 1,53 2,81 0,61 0,96 1,43 0,45 0,69 0,99 0,39 0,59 0,85 0,35 0,54 0,77 HF At 0,60 Axial Depth of Cut (ap) • HF13 Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry HF 0,94 1,58 2,82 0,64 1,00 1,49 0,46 0,71 1,03 0,40 0,61 0,88 0,37 0,56 0,80 HF NOTE: Use “Light Machining” value as starting feed rate. M128 widia.com