Face Mills Face Mills • SuperFeed™ Series Recommended Starting Speeds Recommended Starting Speeds [m/min] Material Group WDN00U 1 – – – 2 – – – 3 – – – P 4 – – – 5 – – – 6 – – – 1 – – – M 2 – – – 3 – – – 1 – – – K 2 – – – 3 – – – 1–2 910 1980 4880 N 3 460 610 760 1 – – – 2 – – – S 3 – – – 4 – – – H 1 – – – 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 10% 20% 30% 40% 50–100% Geometry SDR… 0,08 0,17 0,33 0,06 0,13 0,25 0,06 0,11 0,22 0,05 0,10 0,20 0,05 0,10 0,20 SDR… EDR… 0,08 0,17 0,33 0,06 0,13 0,25 0,06 0,11 0,22 0,05 0,10 0,20 0,05 0,10 0,20 EDR… NOTE: First choice starting feed (fz) is in bold type. Use corresponding speed (vc). fz and vc are valid for ae *0,4 D1. For smaller ae, fz and vc should be multiplied by the factor given below: ae/D1 = 0,2 0,3 0,4 fz-Factor 1,5 1,3 1,0 vc-Factor 1,3 1,2 1,1 widia.com H67