外文翻译--高速加工和现代模具制造 英文版.pdf

TreatingandthemodernmouldmakehighspeedOne,summarizes1thepresentsituationthatthemouldmakesatpresentandtrendThemouldisimportanthandicraftequipment,occupiesdecisivepositioninindustriddepartmentssuchasconsumergoods,electricalequipmentelectron,automobile,aircraftfabrication.Themouldisimportanthandicraftequipment,occupiesdecisivepositioninindustriddepartmentssuchasconsumergoods,electricalequipmentelectron,automobile,aircraftfabrication.Industrialproductpartroughprocess75%,thefinishmachining50%andplasticpart90%willbecompletedfromthemould.TheChinesemouldmarketdemandalreadyreachesscaleof500hundredmillionyuanatpresent.Theautomobilemould,theannualgrowthratecoveringpieceofmouldespeciallywillexceed20%；Alsopromptbuildingmaterialmoulddevelopment,variousheterotypematerialthemould,wallsurfaceandfloormouldbecomenewmouldgrowthpoint,plasticdoorsandwindowsandplasticdrain-pipeincreasetoexceeding30byintheupcomingseveralyears%；Thehomeappliancemouldannualgrowthratewillexceed10%；TheITindustryyearincreases%speedequallyexceeding20,theneedtothemouldaccountsfor20ofmouldmarketplace%.2004annualChinesemachinetoolsimplementsindustryoutputvaluewillcontinuetoincrease.Ourcountrymouldfabricationmarketpotentialisenormous.Thebasisdatacounts,inrecentyears,ourcountrymouldyeargrossoutputvaluereaches3billionU.S.dollar,entranceexceeds1billionU.S.dollar,exceed100millionU.S.dollaroutlet.Increasebyfrom25%toincreaseto200550%of1995.Theexpertforetellsthatabroad:Asiaportionbeingoccupiedbyinmouldfabricationinthewholeworld,willfrom25%toincreaseto200550%of1995.Chinesemouldindustryhasbeenexpandingbyleapsandbounds,hasformedeastChinaandtwobigSouthChinabases,andhasexpandedgraduallyarrivingatotherprovince.In2002(Shandong,Anhui,Sichuan)in1996,mouldmanufacturingindustryoutputvalueannualaveragegrowth14%,growsby25%in2003.In2003ourcountrymouldoutputvalueis45billionRMB.Thegrossproductplaceoccupiestheworldthe3rd,exportsamouldincreases33.5%comparedtolastyear336,800,000U.S.dollar.But,contentslowourcountrytechnologymouldsalreadypileupinexcessofrequirement,verymostsupportofaccurate,complicatedtopgrademouldimports.Everyyeartheentrancemouldexceeds1billionU.S.dollar.Exceed100millionU.S.dollaroutlet.Precisemouldaccuracyrequiresthat3mums,large-scalemouldsrequirethat8000satisfiedkNagreewellwithmodelforceinjectionmachinerequestin2；Theminitypemouldneedstherequestsatisfyingthediameter1mmsilentstocktube.Atpresent,adoptquick-cuttingtoproduceamouldalreadybecomingthegeneraltrendthatthemouldmakes,afewmouldshaveproducedamanufacturerinabroad,high-speedmachinetoollargeareahassubstitutedtheelectricsparkmachinetool,quick-cuttinghasimprovedthemouldefficacygreatly.Machinetoolenterpriseaimsatmouldmanufacturingenterprises,sometreatingcentres60%allaboveofthemachinetoolproducingafactorysellstreatingenterprisetoamould.Themouldfabricationenterprisesubstitutingtheelectricsparkfinishmachiningmouldgraduallyinabroadhasadoptquick-cuttingalreadycommonly,quick-cuttinghasproducedamouldalreadybecomingthegeneraltrendthatthemouldmakesgradually,hasimprovedthemouldefficacyandmassgreatly.Adoptquick-cuttingtoreplaceelectricsparkproducingamould,cangetonthestickobviously,improvesmouldaccuracy,lifetimegrowing.2highspeedprocessesapplicationinmakinginthemould2.1quick-cuttingmerit:1)cutterhighrotationrateandthemachinetoolheightenterbegiventoandhighacceleration,improvemetalexcisionrategreatly；2)quick-cuttingdiminutionscutaforce；3)quick-cuttingheatmajorpartgenerateheatfromthecuttingsentrainment,workpiecebeingshort；4)quick-cuttingcutdownvibration,improvetreatingmass；2.2highspeedtreatingapplytothebeneficialresultthatthemouldprocesses1)fleetnessroughprocessandhalffinishmachining,improvetreatingefficiency；2)highspeedhigh-accuracyfinishmachiningreplaceonlyentiretheheightprocessing,indicatingmass,formaccuracyrise,50%,cutsdownrepairamillbyhandthanEDMprocessesapotentiation；3)cutsthesurfaceprocessingfinalmoldingstiffly,improvesurfacemass,formaccuracy,thetreating(notonlybeingthatsurfaceharshnessislow,andthesurfaceradianceishigh),beingusedforcomplicatedsurfacehasmoreadvantage；4)thesurfacelossthatEDMtreatingproduces,improvemouldlife-span20%；5)processesanelectroderapidlycombiningwiththeCAD/CAMtechnology,especially,theformiscomplicated,thin-wallissimilartoanelectrode.3adoptquick-cuttingtoprocessamouldneedingtheproblemsolvingIninthehomeland,sincetheaspectcausesuchasfund,technology,thequick-cuttingapplyingproduceamouldbeintheinitialstagestage.Returnthemachinetool,cutter,handicraftbacktoexistenceaswellassomeproblemofaspectneedstoproceedorderlyothersolve.Theshortcomingisthatfinishedcostishigh,correctcuttersigmatismhavecomparativelyhighdemand,cannothaveusedbigcutters,needtohavethecomplicatedcomputerprogrammingtechnologytobeusedforsupport,equipmentrunningcostheight.Two,thehighspeedprocessingamouldsprocessesamachinetoolMouldfinishmachiningandhardcuttingtreatingrequirethatthenumericalcontrolhigh-speedmachinetool,formboard,modelputuptheprecisionprocessingneed,high-effectnumericalcontrolmachinetooletc.Themouldaimingatproducesalotofmachinetoolenterprise,sometreatingcentres60%allaboveofthemachinetoolproducingafactorysellsenterprisetoamould.Thefixedassetshaving5billionyuanwithoutexceptionintheupcomingseveralyearsthrowsintomouldindustry,80%isthemachinetoolbuyingamouldprocessequipment,justsayingeveryyearhaving4billionyuanofRMBtobuyJinqieamongthem.Atpresentaverageourcountrynumericalcontrolmachinetoolutilizationratioapproximately20%,thehigh-speedmachinetoolutilizationratio35%.Also,mouldenterprisehastheunitsuitabletobuyahigh-speedmachinetool,complieswith600040000rmpstohave.1high-speedmachinetooltechnologyparameterdemandsProcesscentrechiefaxishigh-power,highrotationrate,satisfiedrudefinishmachining；Thefinishmachiningmouldwantstoneedtoreach1500020000rmplikethecutter,themachinetoolwithminordiameter.Generally,thechiefaxisrotationratemachinetoolunder10000rpmcancarryoutroughprocessandhalffinishmachining,cannotreachthefinishmachiningaccuracy；Havenowaytoreach400theabovem/mincuttingspeed.2fivescrollsofmachinetoolsapplicationincreasesatrend1)treatingrouteisnimble,thesurfaceformiscomplicated；2)treatingrangeisbig,thevarioustypemouldsuitableprocesses；3)cutslife-spanofconditioneasytocutdowncutterwear,toraiseacutter,；3thesoftwaresbuyingCAD/CAMandhigh-speedmachinetoolsassortOnthegroundsofthemachinetool,majorpartcounting,havingseveralbillionsU.S.dollartobeusedtoenterporteveryyear,theelectromachiningmachinetoolandthehigh-speedmachinetoolneedtoimport.Three,quick-cuttingmouldcuttertechnologyQuick-cuttingprocessesthecutterneedingallocatingproperquick-cutting.Progressingprocessingcuttermaterialsinhighspeedhasurgeddevelopmentofhighspeedtreating.Thecutter,knifeedgeheadquarterandhightenacitybasegatheringcrystalstrengtheningtheceramicscutterbeingabletobeusedgivingconsiderationtohighhardnessexperienceandobservecarbidealloycoatingbecomingpossibility.Gatherthecrystalcubenitridingboron(PCBN)bit,whosehardnessmayamountto35004500HV.Gathercrystalmiamond(PCD)itshardnessbutamountto600010000HV.GermanySCS,JapanMitsubishi(magicalsteel)andSumitomo,SwitzerlandShanteweike,USAKennaareinrecentyearsswiftlylargewaitforthefamousabroadcuttercompanytosuccessivelyhavedebutedtherespectivequick-cuttingcutter,notonlycutterhavingaveragestructuralsteelofquick-cutting,theceramicscutterstillhavingdirectquick-cuttingofenergyquenchinghardsteeliswaitingforaneffecttosurpassthehardcutter,especiallythecoatingcutterappearsallofasudden,bringingintoplayinquenchinghalffinishmachiningandfinishmachiningofhardsteel.Newcuttermaterialandcuttertechnologyappearingalreadymakethebottleneckproblemthathighspeedhasprocessednolongerbeabletoappearonthecutter.But,expensiveentrancecutterpricealsoblocksquick-cuttingmouldkeyfactor.Abovetocometosayingthecutterandthecutterholderaccelerationreach3gsthesort,thecuttercircularrunoutneedstobesmallerthan0.015mm,buttheknifelengthisunablegreaterthan4timescuttersdiameter.TherealityaccordingtoSANDVIKcompanyhascounted,thecarbidealloyhasstoodonintheentiretyusingcarbonnitridingtitanium(TICN)coatingwhenmillingcutters(58HRC)carryouthighspeedbrightmetalchopping,roughprocesscutterlinearspeedhasbeen100m/minabout,whoselinearspeedhasexceededbut280m/minwhenfinishmachiningandmicrostoning.Suchdemandstocuttermaterial(includethehardness,tenacity,redhardnesskeeptheform(includerowofcrumbsfunction,surfaceaccuracy,dynamicbalancesexetc.(cuttingthefunction),thecutterunderhightemperaturestate)aswellascutterlife-spanallhasveryhighly.Experienceaccordingtointhehomelandmouldhighspeedfinishmachining,linearspeedhasexceeded400800m/minwhenadopttheyoungdiameterballheadmillingcuttertocarryoutmouldfinishmachining.Themachinetoolchoosingsufficienthigh-speedscutsmouldfinishmachiningstiffly.Delcamadopt0.8mmdiametercuttertoprocessthenarrowslot,rotationrate40000rpm,0.1mmdepth,feedspeed30m/min.1choosesthecutterparameter,thecutterwaitsifshoulderingananteriorangle.Thecutterrequiresthattheabilityprocessingrequestshockresistancetenacitymorehighly,requiringthatheatresistancepoundsthanaverageisstrong；2adoptsvariousmethodimprovingcutterlife-span,reducescuttercost.3adoptthehighspeedhilt,HSKhilt,heatpressingapplyingthemostbeingatpresenttopretendtogripacutter.Payattentiontoacutterpretendtogripoverallinthedayafertomorrowdynamicbalance；4currentcutterenterprisehasalreadydonemanyjobsinthefieldofthetechnologyresolvingthequick-cuttingcutter,servingfacingthecutterprocessingmayhelptosolvemuchproblem,thecutterhasproducedamanufacturerbecomingthemainbody,thereferencecutterhasproducedthetechnologyparameterthatthemanufacturerprovides.Four,improvequick-cuttingmouldefficiencytechnology1cutterdiameterandthelengthchoice2HSMandtheEDMchoice3doescuttingandthelubricatingcooling4feedschoice:Moveforwardgenerallygivingamountsmillingcutterdiameters10%,moveforwardgivingawidthmillingcutterdiameter40%.Accordingtomaterial,conditionchoosestheparameterprocessinghandicraftrationallyHighspeedbrightmetalcutsthemassprocessingpartmaterialabroadfairlygood,materialqualitylevelisidentical,thetreatingfunctioncomparisonisstable；But,thecutterthatthecompanyproducesabroadisalsothatthestandardmakesanexperimentwiththeirmaterial；Thetreatingbeingrecommendedbyissuitabletotheirstandardcomparativelyliketheparameter,materialqualityhasthecertaindifferencewithdomesticpart,thisdifferenceshowscomparativelyobviously,someparameterscanapplydirectly,butsomeeffectdispatchesrightawaycomparativelyduringtheperiodofhighspeedbrightmetalchopsifusingtheircutter.Butselectandusepartmaterialqualityinthehomelandlikeenterprisehavingthecertainstandard,whatbeputintousepartmaterial,canusethepartmaterialqualitythathighspeedprocessesespecial