Copy Mills Copy Mills • M370™ Series Recommended Starting Speeds (Recommended Starting Speeds [m/min] — continued) MaterialGroup WP25PM WS30PM WP40PM 1 395 340 325 – – – 355 310 295 2 330 290 240 – – – 300 260 215 3 305 260 210 – – – 275 235 190 P 4 270 220 180 – – – 245 205 160 5 220 205 180 – – – 205 185 160 6 200 150 120 – – – 180 140 110 1 245 215 200 270 240 220 235 205 185 M 2 220 190 155 245 215 175 210 180 150 3 170 145 115 185 160 125 155 140 110 1 275 245 220 – – – – – – K 2 215 190 180 – – – – – – 3 180 160 145 – – – – – – 1 – – – – – – – – – N 2 – – – – – – – – – 3 – – – – – – – – – 1 50 40 30 55 50 35 50 40 35 2 50 40 30 55 50 35 50 40 35 S 3 60 50 30 65 55 35 60 50 35 4 85 60 40 100 70 50 80 60 40 1 145 110 85 – – – – – – 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 Plunging 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 1,67 4,09 0,65 1,19 2,83 0,48 0,88 2,08 0,42 0,77 1,80 0,38 0,70 1,64 ..MM ..MH 0,90 2,34 5,00 0,65 1,66 3,41 0,48 1,23 2,49 0,42 1,07 2,16 0,38 0,98 1,97 ..MH NOTE: Use “Light Machining” value as starting feed rate. widia.com M9