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中英文翻译高速切削加工的发展及需求.doc

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中英文翻译高速切削加工的发展及需求.doc

翻译部分英文原文HighspeedmachininganddemandforthedevelopmentofHighspeedmachiningiscontemporaryadvancedmanufacturingtechnologyanimportantcomponentofthehighefficiency,Highprecisionandhighsurfacequality,andotherfeatures.ThisarticlepresentsthetechnicaldefinitionofthecurrentstateofdevelopmentofChinasapplicationfieldsandthedemandsituation.Highspeedmachiningisorientedtothe21stcenturyanewhightech,highefficiency,Highprecisionandhighsurfacequalityasabasicfeature,intheautomobileindustry,aerospace,DieManufacturingandinstrumentationindustriesgainedincreasinglywidespreadapplication,andhasmadesignificanttechnicalandeconomicbenefits.contemporaryadvancedmanufacturingtechnologyanimportantcomponentpart.HSCistoachievehighefficiencyofthecoretechnologymanufacturers,intensiveprocessesandequipmentpackagedsothatithasahighproductionefficiency.Itcanbesaidthatthehighspeedmachiningisanincreaseinthequantityofequipmentsignificantlyimproveprocessingefficiencyessentialtothetechnology.Highspeedmachiningisthemajoradvantagesimproveproductionefficiency,improveaccuracyandreducetheprocessingofcuttingresistance.Thehighspeedmachiningofmeaning,atpresentthereisnouniformunderstanding,therearegenerallyseveralpointsasfollowshighcuttingspeed.usuallyfasterthanthatoftheirnormalcutting510timesmachinetoolspindlespeedhigh,generallyspindlespeedin20000r/minabove10,000forhighspeedcuttingFeedathighvelocity,usually1550m/minupto90m/minFordifferentcuttingmaterialsandthewiringusedthetoolmaterial,highspeedcuttingthemeaningisnotnecessarilythesameCuttingprocess,bladedthroughfrequencyToothPassingFrequencyclosertothemachinetoolWorkpiecesystemthedominantnaturalfrequencyDominantNaturalFrequency,canbeconsideredtobehighspeedcutting.Visibilityhighspeedmachiningisacomprehensiveconcept.1992.Germany,theDarmstadtUniversityofTechnology,ProfessorH.Schulzinthe52thontheincreaseofhighspeedcuttingfortheconceptandthescope,asshowninFigure1.Thinkdifferentcuttingtargets,showninthefigureofthetransitionareaTransition,tobewhatiscommonlycalledthehighspeedcutting,Thisisalsothetimeofmetalcuttingprocessrelatedtothetechnicalstaffarelookingforwardto,orisexpectedtoachievethecuttingspeed.Highspeedmachiningofmachinetools,knivesandcuttingprocess,andotheraspectsspecificrequirements.Severalwerefromthefollowingaspectshighspeedmachiningtechnologydevelopmentstatusandtrends.Atthisstage,inordertoachievehighspeedmachining,generalwiringwithhighflexibilityofhighspeedCNCmachinetools,machiningcenters,Byusingadedicatedhighspeedmilling,drilling.TheseequipmentincommonisWemustalsohavehighspeedandhighspeedspindlesystemfeedingsystem,Cuttingcanbeachievedinhighspeedprocess.HighspeedcuttingwiththetraditionalcuttingthebiggestdifferenceisthatMachinetoolworkpiecethedynamiccharacteristicsofcuttingperformanceisstrongerinfluence.Inthesystem,themachinespindlestiffness,griporform,alongknifeset,spindleBroach,torquetoolset,Performancehighspeedimpactareimportantfactors.Inthehighspeedcutting,materialremovalrateMetalRemovalRate,MRR,unittimethatthematerialwasremovedvolume,usuallybasedonthemachinetoolworkpiecewhetherProcessingSystemchatter.Therefore,inordertosatisfythehighspeedmachiningneeds,wemustfirstimprovethestaticanddynamicstiffnessofmachinespindleisparticularlythestiffnesscharacteristics.HSCreasonatthisstagetobesuccessful,averycrucialfactoristhedynamiccharacteristicsofthemasterandprocessingcapability.InordertobetterdescribethemachinespindlestiffnesscharacteristicsoftheprojectpresentednewdimensionlessparameterDNvalue,usedfortheevaluationofthemachinetoolspindlestructureonthehighspeedmachiningofadaptability.DNvalueofthesocalledaxisdiameterperminutespeedwiththeproduct.ThenewlydevelopedspindlemachiningcenterDNvalueshavebeengreatoveronemillion.Toreducetheweightbearing,butalsowithanarrayofsteelproductsthantothemuchmorelightceramicballbearingsBearingLubricationmostimpressivemannermixedwithoillubricationmethods.Inthefieldofhighspeedmachining.haveairbearingsandthedevelopmentofmagneticbearingsandmagneticbearingsandairbearingscombinedconstitutethemagneticgas/airmixingspindle.Feedthemachinesector,highspeedmachiningusedinthefeeddriveisusuallylargerlead,multiplehighspeedballscrewandballarrayofsmalldiametersiliconnitrideSi3N4ceramicball,toreduceitscentrifugalandgyroscopictorqueByusinghollowcoolingtechnologytoreduceoperatingathighspeedballscrewastemperaturegeneratedbythefrictionbetweentheleadscrewandthermaldeformation.Inrecentyears,theuseoflinearmotordrivenhighspeedsystemofuptoSuchfeedsystemhasremovedthemotorfromworkstationstoSlideinthemiddleofallmechanicaltransmissionlinks,ImplementationofMachineToolFeedSystemofzerotransmission.Becausenolinearmotorrotatingcomponents,fromtheroleofcentrifugalforce,cangreatlyincreasethefeedrate.LinearMotorAnothermajoradvantageofthetripisunrestricted.Thelinearmotorisaverytimeforacontinuousmachineshopinpossessionofthebed.Resurfacingoftheverymeetingwhereaveryearlystagemovementcango,butthewholesystemofuptothestiffnesswithoutanyinfluence.Byusinghighspeedscrew,orlinearmotorcangreatlyenhancemachinesystemofuptotherapidresponse.Themaximumaccelerationlinearmotorsupto210GGfortheaccelerationofgravity,thelargestfeedrateofupto60200m/minorhigher.2002worldrenownedShanghaiPudongmaglevtrainprojectofmaglevtracksteelprocessing,UsingtheShenyangMachineToolGroupHoldingsLimitedMcNairfriendshipcompanyproductionplantsintoextralonghighspeedsystemforlargescaleprocessingcentersachieve.Themachinefeedingsystemforthelinearguideandrackgeardrive,thelargesttablefeedrateof60m/min,Quicktripof100m/min,2gacceleration,maximumspeedspindle20000r/min,themainmotorpower80kW.Xaxisdistanceofupto30m,25mcuttinglongmaglevtracksteelerrorislessthan0.15mm.MaglevtrainsforthesmoothcompletionoftheprojectprovidedastrongguaranteefortechnologyInaddition,thecampaignmachineperformancewillalsodirectlyaffecttheprocessingefficiencyandaccuracyofprocessing.Moldandthefreesurfaceofhighspeedmachining,themainwiringwithsmallcutdeepintomethodsforprocessing.Machinerequirementsinthefeedrateconditions,shouldhavehighprecisionpositioningfunctionsandhighprecisioninterpolationfunction,especiallyhighprecisionarcinterpolation.Arcprocessingistoadoptlegislationorthreadmillingcuttermoldormachiningparts,theessentialprocessingmethods.CuttingToolsToolMaterialdevelopmenthighspeedcuttingandtechnologicaldevelopmentofthehistory,toolmaterialiscontinuousprogressofhistory.TherepresentationofhighspeedcuttingtoolmaterialiscubicboronnitrideCBN.FaceMillingCutteruseofCBN,itscuttingspeedcanbeashighas5000m/min,mainlyforthegraycastironmachining.PolycrystallinediamondPCDhasbeendescribedasatoolofthe21stcenturytool,Itisparticularlyapplicabletothecuttingaluminumalloycontainingsilicamaterial,whichislightweightmetalmaterials,highstrength,widelyusedintheautomobile,motorcycleengine,electronicdevicesshell,thebase,andsoon.Atpresent,theuseofpolycrystallinediamondcutterFaceMillingalloy,5000m/minthecuttingspeedhasreachedapracticallevel.InadditionceramictoolalsoappliestograyironofhighspeedmachiningToolCoatingCBNanddiamondcutter,despitegoodhighspeedperformance,butthecostisrelativelyhigh.Usingthecoatingtechnologytomakecuttingtoolisthelowprice,withexcellentmechanicalproperties,whichcaneffectivelyreducethecost.Nowhighspeedprocessingofmillingcutter,withmostofthewiringbetweentheTiA1Ncompositetechnologyforthewayofmultiprocessing,Ifpresentinthenonferrousmetaloralloymaterialdrycutting,DLCDiamondLikeCarboncoatingonthecutterwasofgreatconcern.ItisexpectedthatthemarketoutlookisverysignificantToolclampingsystemToolclampingsystemtosupporthighspeedcuttingisanimportanttechnology,Currentlythemostwidelyusedisatwofacedtoolclampingsystem.HasbeenformallyinvestedasacommoditymarketatthesameclampingtoolsystemareHSK,KM,Bigplus.NC5,AHOsystems.Inthehighspeedmachining,toolandfixturerotaryperformanceofthebalancenotonlyaffectstheprecisionmachiningandtoollife.itwillalsoaffectthelifeofmachinetools.So,thechoiceoftoolsystem,itshouldbeabalancedselectionofgoodproducts.ProcessParametersCuttingspeedofhighspeedprocessingofconventionalshearvelocityofabout10times.Foreverytoothcutterfeedrateremainedbasicallyunchanged,toguaranteepartsmachiningprecision,surfacequalityanddurabilityofthetool,Feedvolumewillalsobeacorrespondingincreaseabout10times,reaching60m/min,Someevenashighas120m/min.Therefore,highspeedmachiningisusuallyprecludetheuseofhighspeed,feedanddepthofcutsmallcuttingparameters.Duetothehighspeedmachiningcuttingcushiontendtobesmall,theformationofverythinchiplight,CuttingputtheheatawayquicklyIfthewiringusinganewthermalstabilitybettertoolmaterialsandcoatings,Usingthedrycuttingprocessforhighspeedmachiningistheidealtechnologyprogram.HighspeedmachiningfieldofapplicationFlexibleefficientproductionlineToadapttotheneedsofnewmodels,autobodypanelmoldsandresinpreventionblocktheformingdie.mustshortentheproductioncycleandreducethecostofproductionand,therefore,wemustmakegreateffortstopromotetheproductionofhighspeeddieintheprocess.SAICaffiliatedwiththecompanythatComparedtothepast,finishing,furtherprecisionthesametime,thesurfaceroughnessmustbemet,thebendingofprecision,thisshouldbesubjecttoappropriateintensivemanualprocessing.Duetotheextremelyhighcuttingspeed,andthelastfinishingprocesses,theprocessingcycleshouldbegreatlyreduced.ToplayformachiningcentersandboringandmillingmachiningcentercategoryrepresentedbythehighspeedmachiningtechnologyandautomatictoolchangefunctionofdistinctionsPotentialtoimproveprocessingefficiency,theprocessingofcomplexpartsusedtobeconcentratedasmuchaspossiblethewiringprocess,thatisafixtureinachievingmultipleprocessescentralizedprocessinganddilutethetraditionalcars,milling,boring,Threadprocessingdifferentcuttingthelimitsoftechnology,equipmentandgivefullplaytothehighspeedcuttingtoolfunction,NCiscurrentlyraisingmachineefficiencyandspeedupproductdevelopmentinaneffectiveway.Therefore,theproposedmultipurposetoolofthenewrequirementscallforatooltocompletedifferentparts

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