6)Inthepossiblesituation,tobesupposedautomaticallytotradetheknifefunctionasfaraspossibleusingthenumericalcontrolenginebed,byenhancestheproductionefficiencyandsoon.
Third,numericalcontrolprocessingcuttingspecificationsdetermination
Thereasonablechoicecuttingspecificationsprincipleis,whenroughmachining,byenhancestheproductivitygenerallyprimarily,butalsoshouldconsidertheefficiencyandtheprocessingcost;Whenhalfprecisionworkandprecisionwork,shouldinundertheguaranteeprocessingqualitypremise,theproperattentiontobothcuttingefficiency,theefficiencyandtheprocessingcost.Theconcretevalueshouldactaccordingtotheenginebedinstructionbooklet,the
cuttingspecificationshandbook,andtheunionexperiencebutdecides.
(1)Depthofcutt.Intheenginebed,theworkpieceandinthecuttingtoolrigiditypermissionsituation,twasequaltoprocessingremainder,thisisenhancestheproductivityaeffectiveaction.Inordertoguaranteethecomponentstheprocessingprecisionandthesurfaceroughness,shouldkeepthecertainremaindergenerallytocarryontheprecisionwork.Thenumericalcontrolenginebedprecisionworkremaindermaybesmallerthanslightlytheordinaryenginebed.
(2)CuttingwidthL.GeneralLandcuttingtooldiameterdhasthedirectratio,hastheinverseratiowiththedepthofcut.Intheeconomynumericalcontrolprocessing,thegeneralLvaluescopeis:L=(0.6~0.9)d.
(3)Enhancesvalsoisenhancestheproductivityameasure,butvandthecuttingtoolabrasiveresistancerelationsquiteareclose.Alongwithvincreasing,thecuttingtoolabrasiveresistancedropssuddenly,thereforevchoicemainlyisdecidedbythecuttingtoolabrasiveresistance.Moreover,thecuttingspeedandtheprocessingmaterialalsohavetheverybigrelations,forexamplewhenantherjin'gang30CrNi2MoVAwiththeendmillmilling,vmayuse8m/Aboutmin;Whenwithsameendmillmillingaluminumalloy,vmaychoose200m/Abovemin.
(4)Mainaxlerotationalspeedn(r/Min).Themainaxlerotationalspeedgeneralbasiscutsthespeedvtodesignate.Theformulais:Theintheformula,disthecuttingtoolortheworkpiecediameter(mm).Onthenumericalcontrolenginebedcontrolpanelhasthemainaxlerotationalspeedtorepairgenerallyadjusts(percentage)theswitch,maycarryontheintegralmultipleadjustmentintheprocessingprocesstothemainaxlerotationalspeed.
(5)EntersforspeedvF.VFshouldchooseaccordingtothecomponentsprocessingprecisionandthesurfaceroughnessrequestaswellasthecuttingtoolandtheworkpiecematerial.ThevFincreasealsomayenhancetheproductionefficiency.Whentheprocessingsurfaceroughnessrequestslowly,vFmaychoosebig.Intheprocessingprocess,vFalsomayrepairthroughtheenginebedcontrolpanelontransferstoareadjuststheswitchthepedestrianwageadjustmententire,butentersmostgreatlyforthespeedmustreceivetheequipmentrigidityandenterforthesystemperformanceandsoonthelimit.Alongwiththenumericalcontrolenginebedintheproductionactualcenterwidespreadapplication,thenumericalcontrolprogrammingalreadybecameoneofinnumericalcontrolprocessingkeyquestions.Inthenumericalcontrolprocedureestablishmentprocess,mustchoosethecuttingtoolandthedeterminationcuttingspecificationsimmediatelyundertheman-machineinteractivecondition.Therefore,theprogrammersmustbefamiliarwiththecuttingtoolthechoicemethodandthecuttingspecificationsdefiniteprinciple,thustheguaranteecomponentsprocessingqualityandtheprocessingefficiency,fullydisplaythenumericalcontrolenginebedthemerit,enhancestheenterprisetheeconomicefficiencyandtheproductionlevel.
CNC加工中刀具的选择与切削用量的确定
