Copy Mills Copy Mills • M370™ Series Recommended Starting Speeds (Recommended Starting Speeds [m/min] — continued) MaterialGroup WP35CM WS30PM WP40PM 1 545 475 445 – – – 355 310 295 2 335 305 275 – – – 300 260 215 3 305 275 245 – – – 275 235 190 P 4 230 210 190 – – – 245 205 160 5 310 275 250 – – – 205 185 160 6 190 160 130 – – – 180 140 110 1 245 220 185 270 240 220 235 205 185 M 2 220 190 170 245 215 175 210 180 150 3 175 155 140 185 160 125 155 140 110 1 355 320 290 – – – – – – K 2 280 250 230 – – – – – – 3 235 210 190 – – – – – – 1 – – – – – – – – – N 2 – – – – – – – – – 3 – – – – – – – – – 1 – – – 55 50 35 50 40 35 2 – – – 55 50 35 50 40 35 S 3 – – – 65 55 35 60 50 35 4 80 60 40 100 70 50 80 60 40 1 – – – – – – – – – H 2 – – – – – – – – – 3 – – – – – – – – – 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 For All Other Applications Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry ..MM 0,90 1,87 3,62 0,65 1,33 2,52 0,48 0,99 1,86 0,42 0,86 1,61 0,39 0,79 1,47 ..MM ..MH 0,90 2,35 4,97 0,65 1,67 3,40 0,48 1,23 2,48 0,42 1,07 2,15 0,39 0,98 1,96 ..MH ..MR 0,90 2,81 5,44 0,65 1,97 3,69 0,48 1,46 2,69 0,42 1,27 2,33 0,39 1,16 2,13 ..MR NOTE: Use “Light Machining” value as starting feed rate. widia.com M15