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PressHardeningAdvancedTechnologytoreducetheWeightofVehiclesforTodayandFutureNiobiumTechAsiaMarch15,2011边箭边箭边箭边箭1安徽合肥安徽合肥安徽合肥安徽合肥新加坡新加坡新加坡新加坡东北大学东北大学东北大学东北大学JFEThyssenKrupp设计院设计院设计院设计院CBMM亚太地区铌钢技术咨询公司亚太地区铌钢技术咨询公司亚太地区铌钢技术咨询公司亚太地区铌钢技术咨询公司巴西矿冶公司技术顾问巴西矿冶公司技术顾问巴西矿冶公司技术顾问巴西矿冶公司技术顾问，，，，中国中信金属公司合作伙伴中国中信金属公司合作伙伴中国中信金属公司合作伙伴中国中信金属公司合作伙伴NiobiumTechAsiaMarch15,20112NiobiumTechAsiaMarch15,2011Strategyoflightweight(U)HSSLightmetalsPlasticandcarbonfiberPH1500DP1000TRIP1000CP1000MS1200lightweightconcepts5%inuseConventionalprocessPresshardening15%inuse安全安全安全安全节能节能节能节能环保环保环保环保铌合金铌合金铌合金铌合金(Nb)3NiobiumTechAsiaMarch15,2011PresshardeningStateoftheartPresshardeningprocessPresshardeningsteelsSurfacecoatingApplicationintheBIWNewdevelopmentProcesstechnologyHigherstrengthsteelsforpresshardeningPresshardeninginChina4NiobiumTechAsiaMarch15,2011PresshardeningStateoftheartPresshardeningprocessPresshardeningsteelsSurfacecoatingApplicationintheBIWNewdevelopmentProcesstechnologyHigherstrengthsteelsforpresshardeningPresshardeninginChina5Estimatedweightreduction020406080100120140MildSteelHSLAPresshardeningsteelAluminumWeight-5–10%-20–30%-10–15%-20–40%+15-25%ReferenceDP-600TRIP-800DP-800WhypresshardeningWeightreductionNiobiumTechAsiaMarch15,20116BumperreinforcementBumperreinforcementTunnelC-pillarRoofframeSidememberSillSideimpactbeamA-pillarB-pillarDashpanelEuroNCAPcrashtestsWhypresshardeningcrashperformanceNiobiumTechAsiaMarch15,20117ProcessTechnologyHeatingto880°C–950°CHotstampingandpresshardeningincooleddieDieorlasertrimmingDirecthotstamping(onestep)/22MnB5ColdstampingHeatingto880°C–950°CHotstampingandpresshardeningincooleddieDieorlasertrimmingSandblastingIndirecthotstamping(twosteps)/22MnB5NiobiumTechAsiaMarch15,20118TemperatureprofileandmicrostructuredevelopmentPresshardeningTransferofplateOpeningofstampTimeTemperatureClosingofdieAustenitisationMicrostructurebeforehotstampingMicrostructureafterhotstampingNiobiumTechAsiaMarch15,20119FB-WMSConditionasdelivered(cold)Deepdrawingsteelsandconventionalhigh-strengthsteelsTensilestrengthupto1500MPaGreatBHpotentialGoodhardenabilityGoodweldabilitySuitableforcoating/paintingMechanicalpropertiesof22MnB5RA-KCPDP22MnB5Conditionbeforepresshardening(hot)600102030405070ElongationA(%)TensilestrengthRm(MPa)200300400500600700800900100011001200130014001500170018001600100NiobiumTechAsiaMarch15,201110Mechanicalpropertiesof22MnB501234560200400600800100012001400160022MnB5-hardened22MnB5-temperedA80,%Strength,MPaYS,MpaTS,MpaA80,%Damageto22MnB5underaxialcrashloading(extractfromBMW)withincreasingtemperatureHardenedNiobiumTechAsiaMarch15,201111HighBakeHardeningpotentialafterpresshardening(22MnB5)950105011501250135014501550Presshardened5min.10min.15min.20min.Strength[Mpa]NiobiumTechAsiaMarch15,2011BHpotentialTS12CoatingsystemsforpresshardeningprocessProcessColdformingWeldablityCathodicprotectionAS1stepNoYesNoZn2stepsyesYesYesX-Tec1stepNoNoNoNiobiumTechAsiaMarch15,201113CenterandinsertStampandhardenDestackPartmarkingbylaserPlacesheetsonrollertableAustenitizeHeatsheetsRemovethepartNiobiumTechAsiaMarch15,201114FromsteelstofinalcarcomponentsthroughpresshardeningbyThyssenKruppTrimminghardenedpartsonseparatetrimminglineUpto3trimmingoperationsNiobiumTechAsiaMarch15,201115FromsteelstofinalcarcomponentsthroughpresshardeningbyThyssenKruppOEMsBodyChassis1457231.Frontsubframes/crossmembers2.Controlarms3.Crossmember4.Rearlaterallink5.AxlecasesMini,FordEUCD,newPSA/FiatG9FordGalaxy,VWTouareg,PorscheCayenne,LandRoverDiscoveryMini,FordFiestaVolvoS80LandRoverDefenderTypicalChassisproductsSelectedexamples12345OEMs23561SidewallsCrosscarbeamsSideintrusionbeamsPillars/pillarreinforcerOuterdoorpanelsreinforcementsLongitudinalsMercedes-BenzSprinter,VWCrafterToyotaYarisMercedes-BenzC-Class,variousBMWmodels(1,3,5,7series)RenaultLaguna,AudiA3,Q7RenaultClio,BentleyFlyingSpurMercedes-BenzSprinter,PorscheCayenneRenaultTrafic/GMVivaroTypicalbodyproductsSelectedexamples12345647FromsteelstofinalcarcomponentsthroughpresshardeningbyThyssenKrupp16UseoftwoidenticaldiesUseoftwodifferentdiesinparallelpossibleTwo-partcrashreinforcementB-pillarreinforcementpressoffourpartsperstrokePresshardeningdiefortwo-partcrashreinforcementReductionofproductioncostsNiobiumTechAsiaMarch15,201117Manufactureofweight-optimizedstructuralpartsInnovation:HotstampedintegralframeIntegrationofsystemrequirementsinonepart•Productionofcomplexshapes•Stiffnessimprovement•Weightoptimization•Dimensionalaccuracy•EliminationofjoiningoperationsIntegralframemadebypresshardeningNiobiumTechAsiaMarch15,201118ApplicationofpresshardeningsteelsintheEuropeancarbrandsNiobiumTechAsiaMarch15,201119ApplicationofpresshardeningsteelsinthecarbodyBMW7erYieldstrengthSteelgrades,inWet.%Steelgrades,inWet.%Bodystructureoflightweight-PassatCCNiobiumTechAsiaMarch15,2011Presshardening20ApplicationofpresshardeningsteelsinthecarbodyofBMW-5NiobiumTechAsiaMarch15,201102468101214UHSS,%PHS,%BMW-5(2009)BMW-5(2010)380400420440460480500BMW-5(2009)BMW-5(2010)BIW,kg499kg21NewdevelopmentofPresshardenin