VSM890™-12 0°/90° Shoulder Mills • VSM890-12 Recommended Starting Speeds [m/min]* MaterialGroup WK15CM WN25PM WP25PM WP40PM WS40PM WU10PM 1 – – – – – – 330 285 270 295 260 245 – – – – – – 2 – – – – – – 275 240 200 250 215 180 – – – – – – P 34 – – –––– –– – – 255 215 175 230 195 160 – – – – – –––225185150205170135–––––– 5 – – – – – – 185 170 150 170 155 135 170 145 120 – – – 6 – – – – – – 165 125 100 150 115 90 150 110 80 – – – 1 – – – – – – 205 180 165 195 170 155 210 170 140 – – – M 2 – – – – – – 185 160 130 175 150 125 180 145 120 – – – 3 – – – – – – 140 120 95 130 115 90 145 110 85 – – – 1 420 385 340 – – – 230 205 185 – – – – – – 295 265 240 K 2 335 295 275 – – – 180 160 150 – – – – – – 230 205 190 3 280 250 230 – – – 150 135 120 – – – – – – 195 175 160 1 – – – 1075 945 875 – – – – – – – – – – – – N 2 – – – 945 875 760 – – – – – – – – – – – – 3 – – – 945 875 760 – – – – – – – – – – – – 1 – – – – – – 40 35 25 – – – 40 35 25 – – – S 23 – – –––– –– – – 40 35 25 – – – 40 35 25 – – –––504025–––504025––– 4 – – – – – – 70 50 35 – – – 60 50 30 – – – H 1 – – – – – – – – – – – – – – – 160 130 90 NOTE: FIRST choice starting speeds are in bold type. As the average chip thickness increases, the speed should be decreased. *Material groups P, M, K, and H show recommended starting speeds for dry machining. For wet machining, reduce speed by 20%. *Material groups N and S show recommended starting speeds for wet machining. Not recommended for dry machining. Recommended Starting Feeds [mm] Light General Heavy Machining Purpose Machining Programmed Feed per Tooth (fz) Insert as a % of Radial Depth of Cut (ae) Insert Geometry 5% 10% 20% 30% 40–100% Geometry .E..ALP 0,12 0,28 0,43 0,08 0,20 0,31 0,06 0,15 0,23 0,06 0,13 0,20 0,05 0,12 0,18 .E..ALP .E..ML 0,17 0,32 0,60 0,13 0,23 0,44 0,09 0,18 0,33 0,08 0,15 0,28 0,08 0,14 0,26 .E..ML .S..MM 0,23 0,36 0,82 0,17 0,26 0,59 0,13 0,20 0,44 0,11 0,17 0,38 0,10 0,16 0,35 .S..MM NOTE: Use “Light Machining” values as starting feed rate. widia.com 10 widia.com