Общий каталог Palbit - страница 128

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MILLINGOverviewFace millingHifeed millingShoulder millingProfile millingHardmillCenter & ChamferSpot faceEnd MillsSpare partsTechnical Data MILLINGOverviewFace millingHifeed millingShoulder millingProfile millingHardmillCenter & ChamferSpot faceEnd MillsSpare partsTechnical Data CUTTING DATA CALCULATION POWER REQUIREMENT CALCULATION A Cálculo de condições de corte | Cálculo de datos de corte Cálculo de potência requerida | Cálculo del requerimiento de potencia A Formulas Calculating the power demand Pc - Power (kW) Spindle Speed (rev/min)n=vc . 1000π . Dc ap - Depth of cut (mm)Pc =ap x ae x vf60 000 000 xxkcaeae- Width of cut (mm)vf- Feed speed (mm/min)- Efficiencykc- Cutting force per mm² Cutting Speed (m/min) vc = n . π . Dc1000 Feed Speed (mm/min) Feed per Revolution (mm/rev) Calculating average chip thickness (hm) and cutting force per mm² (kc) vf = n . Zn . fz f = Zn . fzFeed per Tooth (mm/tooth)Metal removal Rate (cm³/min) hm - Average chip thickness (mm)hm=360 x fz x aeπ x Dc x ωex sin krfz- Feed per tooth (mm/tooth)Dc- Cutter diameter (mm)ωe - Engagement angle fz = vfn . Zn ae . ap . vf kr - Lead angleQ=1000kc=1hmmcx kcxmc* - Exponentkcx* - Cutting force for 1 mm chip thickness (N/mm²) * Please see these values on page 797. Cutting Speed and Spindle Speed for Copying Engagement angle Nomenclature ωe ae - Width of cut mm/radial depth of cut (mm) ap - Depth of cut mm/radial depth of cut (mm) vc = n . π . Dw1000 (m/min) Dc - Cutter diameterf- Feed per Revolution (mm)(mm/rev) n= vc . 1000π . Dw (RPM) fz - Feed per Toothn- Spindle SpeedQ- Material removal Rate (mm/tooth)(rev/min)(cm³/min) Engagement Engagement Engagement Engagementae / Dcangle ωeae / Dcangle ωe70%89º5%26º Dw = 2 . √ap (Dc-ap) (mm) Vc - Cutting SpeedVf- Feed Speed (m/min)(mm/min) 100% 180º 10% 37º75%60º Zn - Nº of theeth A - 252 A - 253