Face Mills Face Mills • M660 Series Recommended Starting Speeds „Recommended Starting Speeds [m/min] MaterialGroup TN6525 TN7525 TN7535 WK15CM WP25PM WP35CM WP40PM 1 410 320 280 410 310 280 545 475 445 – – – 395 340 325 545 475 445 355 310 295 2 320 250 215 310 250 215 335 305 275 – – – 330 290 240 335 305 275 300 260 215 3 280 215 185 280 215 185 305 275 245 – – – 305 260 210 305 275 245 275 235 190 P 4 235 170 145 235 170 145 230 210 190 – – – 270 220 180 230 210 190 245 205 160 5 310 235 200 310 235 200 310 275 250 – – – 220 205 180 310 275 250 205 185 160 6 205 160 130 205 160 130 190 160 130 – – – 200 150 120 190 160 130 180 140 110 1 190 120 80 245 220 185 245 220 185 – – – 245 215 200 245 220 185 235 205 185 M 2 120 80 50 220 190 170 220 190 170 – – – 220 190 155 220 190 170 210 180 150 3 125 80 55 175 155 140 175 155 140 – – – 170 145 115 175 155 140 155 140 110 1 275 245 220 380 280 240 355 320 290 505 460 410 275 245 220 355 320 290 – – – K 2 215 190 180 325 240 200 280 250 230 400 355 330 215 190 180 280 250 230 – – – 3 180 160 145 240 200 170 235 210 190 335 300 275 180 160 145 235 210 190 – – – 1 – – – – – – – – – – – – – – – – – – – – – N 2 – – – – – – – – – – – – – – – – – – – – – 3 – – – – – – – – – – – – – – – – – – – – – 1 – – – – – – – – – – – – 50 40 30 – – – 50 40 35 2 – – – – – – – – – – – – 50 40 30 – – – 50 40 35 S 3 – – – – – – – – – – – – 60 50 30 – – – 60 50 35 4 – – – – – – – – – – – – 85 60 40 80 60 40 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 Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert Geometry 5% 10% 20% 30% 40–100% Geometry ...21 0,24 0,74 1,25 0,18 0,53 0,89 0,13 0,40 0,66 0,12 0,35 0,58 0,11 0,32 0,53 ...21 ...31 0,33 0,84 1,35 0,24 0,60 0,97 0,18 0,45 0,72 0,16 0,39 0,63 0,14 0,36 0,57 ...31 NOTE: Use “Light Machining” value as starting feed rate. H60 widia.com