Advanced Machining

Pagina 1

Lancelmachining exercises Advancedmachining NominaldiameterofthetoolDaor mm Numberofflutes Z Inclinationofthetool 0 degrees Axialdepthofcut dp mm Radialdepthofcut de mm Radiusoftheroundedcorner R mm Ifflatendmill DcDcap Engagedtooldiameter Dcap mm DcapDesinOtarccos12 Dcap2 apDcap in Cuttingspeed a Ita IT.deR Spindlespeed R rpm n dea Vgn.fz.azFeedrateatthetoolcenter Up Iit vg.FI utVgnh.fz.zFeedrateatthetoolperipheryUn Ifr ogn tip UnFeedpertooth fa rifotn ftp.z Workpiecefinaldiameter Dm mm Dm2R Diameterofthetoolcentertrajectory Dug MM DafDmDcap Engagementangle of degrees 4arccos1 Meanchipthickness hmortemm hm inno Maximumchipthickness hex mm hexfz.sng Uncutchipcrosssection AD mm ADhmap MaterialRemovalRate MRR Ii vg.ap.de Averagecuttingpressure Kam Averagecuttingforce Fam N FenKamAD Massmomentofinertiaofthetool JIDCj mn 01ÈFlexuraldeflectionofthetool 8 mm Averagecuttingmoment Mgm N.mn ManFan Pe m Cuttingpower Pc W PamMamth INUARY2024 To o lcoatedWCmicroflatendmillingtool WorkpieceSteelmould Data R1,4mm De1mm 72 ap0,10,2 de1525ofDcap n 5000rpm Kam 4000MPa hm0,1nn To o ldeflection 85E p Tobe5minimum Fahastobeminimum Fam KamADKamhmap TobeFaminimum aphastobeminimum 0,1 hmhastobeminimum 0,1 hm4c Tobehmminimum dehastobeminimum 0,15Dcap Hence gap0,1 de0,15Dcap EngagedtoolmaterialDcap Fromtherelationship forflatendmill DcDcap Dcap1mm henceda0,15un feedpertoothfz cos41 p 1hm48 Yarccos12e 45,57 0795rad pz hm4Dcap 265Itooth 2de VelocityatthetoolperipheryIn constraint 265 tn Fromtherelationship Nym n ftZ Vyn5000rpm0,265perin2tooth 2650fin