Slotting Mills Slotting Mills • M94 Series Recommended Starting Speeds Recommended Starting Speeds [m/min] MaterialGroup THM TTM/TTM08 1 – – – 560 490 460 2 – – – 345 280 245 3 – – – 345 280 245 P 4 – – – 280 195 180 5 – – – 360 280 260 6 – – – 165 130 115 1 – – – 330 195 130 M 2 – – – 195 115 80 3 – – – 215 130 100 1 395 295 245 – – – K 2 410 330 230 – – – 3 425 310 195 – – – 1 2950 1970 1640 – – – N 2 2245 1525 1265 – – – 3 1475 920 655 – – – 1 – – – – – – 2 – – – – – – S 3 – – – – – – 4 – – – – – – 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 TCAX/TNAX 0,12 0,29 0,45 0,08 0,21 0,33 0,06 0,16 0,25 0,06 0,14 0,21 0,05 0,13 0,20 TCAX/TNAX NOTE: Use “Light Machining” value as starting feed rate. L14 widia.com