Slotting Mills Slotting Mills • M95 Series Recommended Starting Speeds „Recommended Starting Speeds [m/min] MaterialGroup WK15CM WP35CM WP40PM 0 – – – 455 395 370 295 260 245 1 – – – 455 395 370 295 260 245 2 – – – 280 255 230 250 215 180 P 3 – – – 255 230 205 230 195 160 4 – – – 190 175 160 205 170 135 5 – – – 260 230 210 170 155 135 6 – – – 160 135 110 150 115 90 1 – – – 205 185 155 195 170 155 M 2 – – – 185 160 140 175 150 125 3 – – – 145 130 115 130 115 90 1 420 385 340 295 265 240 – – – K 2 335 295 275 235 210 190 – – – 3 280 250 230 195 175 160 – – – 1 – – – – – – – – – N 2 – – – – – – – – – 3 – – – – – – – – – 1 – – – – – – – – – 2 – – – – – – – – – S 3 – – – – – – – – – 4 – – – 66 50 33 – – – 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 SNHX 0,12 0,28 0,71 0,08 0,20 0,51 0,06 0,15 0,38 0,06 0,13 0,33 0,05 0,12 0,30 SNHX NOTE: Use “Light Machining” value as starting feed rate. widia.com L21