国内外轿车覆盖件模具设计概况中英文翻译Word文档格式.docx

国内外轿车覆盖件模具设计概况中英文翻译Word文档格式.docx

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A.S.Pouzada,E.C.FerreiraandA.J.Pontes

Abstract:

Inintroducingthecurrentdomesticcarstampingdiedesignandmanufactureofthefoundation,expoundedforeignautocompanycarspanelparticularpanelofthestampingprocessanddiedesignstatusapplicationofnewtechnologies.

Keywords:

mechanicalmanufacturing;

Carpanel;

Stampingtechnology;

MoldDesign

1Introduction

Inrecentyears,China'

scarmarkethasdevelopedveryrapidlyin2002incarsalesmorethanonemilliononthebasisofin2003to2millionpeoplerelationsforward,reaching1.97million.However,inthecarheatrapidlywarming,hadtofacetheembarrassmentofthisreality-marketbest-sellingvehicleforthemajorityofpeoplemustbedirectlyimportedfromabroad.Asdomesticcarcovermolddesignandmanufacturingcapabilityonthewholeisrelativelyweak,inordertoproducethesemodels,eachcompanyhadtospendhundredsofmillionsorhundredsofbillionofoverseasprocurementdie.Peoplewithforeignautomobilecompanies,becausetherelativelysmallscaleofproduction,Thishasresultedinmotorcyclesmoothingwoodintothemoldmuchhigherthanforeigncars,Thisisalsoproducedcarsalongwithhighwoodmanufacturingintooneofthemainreasons.

2DomesticcarcoverageDiedevelopmentcapability

MajorcarmanufacturerstoDie:

DieManufacturingCo.Ltd.ofFAW,DongfengMotorDieWorks,TianjinAutomobileDieCompany,CACIntegrationTechnologyCo.,LtdNanjingmoldequipment,ShanghaiAutoBody1000marginDieCompany.Mostpeopleasadomesticcarproductionandsalesofcommercial-vehiclepopulationofShanghaiLimited,alsohasitsownmolddesignandmanufacturingdepartments（（TMMDivision）.Currently,AlthoughdomesticDieinCarcoverthemolddesignandmanufacturinghasasmallcapacity,autoplantscanundertakesomedevelopmentprojectsdie,butforaveryhighsurfaceaccuracyandsurfacequalityrequirementsoftheoutsidepanel.Itisespeciallythehigh-gradecarsoutsidepanel,autoplantsrarelydiebythewillofsuchdomesticdevelopment.

ShanghaiPublicMotorsLimitedinordertoreducevehicleproductioncosts,butalsotoincreasethecompany'

scoretechnicalcompetencies,Sincethebeginningof2001,setfootinthecarstampingdiedesignandmanufacturingfields.2001-2002completedPOLOcarsmanuallypressestheproductionline10Diesimpleparts,thecompany'

squalityassurancedepartmentaswellandputintoproduction.Beginningin2002,thetypeofpeopletothecomplex,automation,6000kNthedesignandmanufactureofautomaticproductionlinePOLOcarstyres.DieBlock（dimensionsoftheparts,deepdrawingdeep,complexshape）in2003,inordertofurtherenhancethedesignandmanufactureofmoldabilityandlevelWegetinvolvedintheMulti-Position20000kNPressand10000kNautomaticproductionlineofdiedesign.Shanghaioverthepastnumberofpeopleinmanypublicspaces20000kNPressontheuseofthemold,alluneedtoprogress,Diedomesticbusinessstilllackstheabilitytodesignandmanufacturethemold.Tothisend,wechosePOLOCarcolumnplatemolddesign.20000kNMulti-PositionPressistheworld'

smostadvancedpresses,integration,averyhighdegreeofautomation.Ofcourse,thisrightmolddesignrequirementsalsoincreasedaccordingly.PartsFeedingheight,distance,locationmanipulatorstrictrequirementsensurethatthemanipulatorinthecourseofthecampaignanddiewithoutinterference,sothemolddesignforspaceonasmalllot.Inconsideringmanyfactors,wefinallycompletedthewholemolddesign,CADstateassemblyasshowninfigure1.Inaddition,wehavecompletedthePOLOcars10000kNautomaticproductionlineoftherearwheelcovermolddesign,Inlastyear'

sbuildonthat.ThesesuccessfulcompletionoftheShanghaimarksthenumberofpeoplediedesigncapabilityhasreachedadvanceddomesticlevel.thusforthefutureofShanghaipeopledieDomesticcarlayasolidfoundation.Nevertheless,withtheinternationaladvancedlevel,themorepeopletherearestillgaps,Forexample,inthecaroutsidecovermolddesignorfromtheair.

DieinCar,themostdifficultoftheoutercoveringdiedesign,mainlyinthefollowingtwoaspects:

（1）Overcomebytheresilienceofpartssurfacedeviations

Breakdown,wrinkling,Reboundcarisstampingprocessofformingthemainshortcomings,ascaroutsidepaneldimensions.deepdrawingshallow,plasticdeformationlowlevelgenerallywillnotcrack,Resilienceasaresultofsuchpartsonthemanufacturingprocessandthemainproblems,itwillseriouslyaffectthepartswiththemutualrelations.Finiteelementsimulationsoftwareinthestampingdiedesignuniversalapplication,hasbeenabletoaccuratelypredictruptureandwrinkle-free.thuscontributetothedesignofappropriateauxiliarysurfacestoimprovetheprocessofdrawingmaterialsflow,improvepartsformingft.However,todate）unknown.MostofthefiniteelementsoftwarecannotbeaccuratelyforecastStampingDiethemremovedfromthereboundafterdeformation.Therefore,theexternalpaneldealingwiththeresilienceofthemajorchangestorelyontheexperienceofthedieface,stampingpartsareformingover,tooffsetreboundledtothedeformation.

（2）Stampingthepick-up

Asforeigncoverage（egfrontcoverplate,theroofandfenderpanels）aresubjecttocomplexflangingplasticoranticipatedbeadingcrafts,Thismakesthedesignofthemoldstructure,wemustconsidertheramafterformingthepick-up,thecurrentpeoplearerelyingonmorecomplexWedgeinstitutionallinkagestoachievesomeoftheworktomoldpartshisresignationtoachievetoenablethemtopieces.Theresultingmoldoftheentirestructureisverycomplicated.

3ForeigncoverageDieDesign

Currently,foreignersMotorsCorporationinordertoreducemolddevelopmentandmanufacturingcosts,shortenproductioncycles,InadditiontocarsoutsidepanelofpeopleoutofthecarStampingDieMoldwerelefttoprofessionalcompanies（suchasFontanaPietro.Kuka.Laepple.SchulerCartec.Ogi-hala-FujiTechniacaetc.）todesignandmanufacture,thesecompanieshavestrongdevelopmentcapabilities,andinsomepartsofthemanufacturingmoldwithuniqueadvantages.Butasautoplants,takingintoaccountthedevelopmentofnewmodelsintheprocessofconfidentiality,suchastheright-wingboards,suitcasecovers,doors,side-Wai,therooffrontcoverandothersensitivepartsofthedie,diebytheirownmanufacturingsectortodesignandmanufacture.

3.1SoftwareEnvironment

Stampingdiedesign,inadditiontotheneedforCADsoftware,alsolarge-scaleapplicationofthefiniteelementsimulationsoftwareIfAutoForm.PamStamp.DynaForm.Indeed,aideddesignstampingprocess.Below,AutoFormasanexampletoshowhowtheuseofCAEsoftwaredesignprocessofdrawingsurfaces.

AutoFormissuppliedbytheSwissDevelopmentprofessionalrapidsimulationofsheetmetalformingsoftwarecanbeusedinsheet,weldedplatestamping,suchasHydroformingprocesssimulation,withdifferentfunctionalmodules,canalsobeusedforsingle-stepstampingpartsandthesimulationofformingprocessesofdrawingsurfaces（（Addendum）Design.Carstampings,Abouttwo-thirdsoftheuseofAutoFormDiedesignerModuleModuleDesignAddendumthemoduleunderspecifiedbythedesignerorbythesoftwareautomaticallygeneratepressure-ringfaceandandtheprocessofmulti-addedsectionoftheline（Profile）,toproducerapid-addedprocess,Drawingforthesimulationprocess,asshowninFigure2.V-ringfaceandProfileparametercanbetheadjustment.ThisrapiddesignisbasedonsurfaceAddendumConstructionoftherough,curvedsurfacefilmitself,andbetweenthecurvedsurfaceofthefilmisnotverycontinuousfairing,Despitethissurfaceisnotuseddirectlytothemoldsurfacemachining.Butthesimulationaccuracyisnotaffectedpeople.Accordingtothesimulationresults.designerscaneasilyadd-ontechnologyadjustmentuntilsimulationresultsmeetdesignrequirements.Finally,willBlankholdercircleProfileAddendumtosurfaceandneutraldataformatoutputIGSorVDA,CADsoftwareforsurfacereconstructionanddigital-analogintegratedproducts,willbeabletobemachinedcanusethedrawingprocessafewDieMold.

StampingProcesstraditionaldesignmethods:

First,onthebasisofexperience,theuseofCADtechnologytoaddnoodles.Secondly,CADwillbetransmittedtothemodelnumberofAutoFormsoftwaresuchasCAEdeepdrawingprocesssimulation;

Accordingtothesimulationresults.inCADadd-onprocessadjustmentsandafewnewCAD-CAEpasstostartnewsimulation,Untilmeettherequirementsforcompetition.ThisisonefromCADtoCAEtoreturntotheCADkeptintheprocess.BecauseeachoftheCADsurfacestructurethaninAutoFormarecomplex,therefore,Thewholeprocesswillhavetospendmuchmoretime.Andthenewmethodofstampingprocessinthedesignstage,DiedesignerModuleusedinAutoFormsoftwaredesignandadjustthedeepdrawingprocesssurfaceswiththetraditionaldesignmethods,wewillbeabletogreatlyimprovetheefficiencyofdesign.

AAutoFormisduetotherapidsimulationsoftwareinarelativelyshorttimestampingpartsofthecomplicatedprocessofformingtheevaluationofmembranemodulesusedtomodeldiscretegeometry,boundtoreducethesimulationaccuracy,therefore,Somecarcompaniespriortothestartofmolddesignwillusehigh-precisionsimulationoftheCAEsoftware,GermanyonthenumberofpeopleusingthesoftwareIndeed,Drawingonproceduresforthesimulationagain（（Indeedcalculationsoftwareisbasedonthethicknessoftheshellelement.tobe