Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 211

9 OPERATING FORMULAS Milling Terminology/Operating Formulas The following terms and formulas can be used to determine the appropriate operating parameters. Formulas (Metric) Terms Formulas (Imperial) vc [m/min] Cutting speed SFM [ft/min] n × DC × p RPM × DC × p Vc = n [rev/min] Spindle speed RPM [rev/min] SFM = 1000 12 Vf [mm/min] Feed rate IPM [in/min] vc × 1000 SFM × 12 n= RPM = DC × p fz [mm/z] Feed per tooth IPT [in/T] DC × p Vf = fz × z × n DC [mm] Cutting diameter DC [in] IPM = IPT × T × RPM Vf z [–] Number of teeth T [–] IPM fz = IPT = z×n T × RPM APMX FFW [mm] Depth of cut DOC [in] Vf × APMX FFW × APMX EFW Q= APMX EFW [mm] Width of cut WOC [in] MRR = IPM × DOC × WOC 1000 Q [cm³/min] Metal removal rate MRR in³/min 210