德国舒勒公司用于HP-RTM的压机

1Applicationofvacuum-assistedhigh-pressureRTM-processfortheseriesproductionofCFRPcomponentsforcarbodiesCompositesEurope2013Dipl.-Ing.MarkusGeierCopyrightbySchulerSMGSourceBMWAG,SchulerAG2SCHULERSMG–thecompanySCHULERSMGismemberoftheANDRITZGroupSCHULERisthetechnologicalandworld-marketleaderinformingtechnologySCHULRSMGisasystemsupplierforhydraulicpressesandpresslineswiththebrandsSMG,HydrapandMüllerWeingartenCopyrightSchulerSMG2013MotivationfortheuseofCFRPpartsintheautomotiveindustryThevacuum-assistedhighpressureRTMpressprocessPresstechnologyforthehighpressureRTMprocesswithexampleofsuppliedpresses36,000kN–3.6x2.4mSystemoverviewofcompleteRTMprocessNewdevelopmentofpresstechnologyCopyrightSchulerSMG20134Lightweightdesignintheautomotiveindustry-MotivationFutureofmobilityEnergycostswillriseFuelconsumptionandemmissionswillbeincreasinglyfinanciallypunished.Lawsconcerningemissionsinfluencemobility(E-mobility,etc.)carJoyofdrivingEfficiency(environment)SafetyFordevelopmentofnewvehiclesthereisachallengeofbalancingsafety,efficiency(environment)andjoyofdrivingVehicleconceptComponentfunctionChoiceofmaterialCopyrightSchulerSMG20135Lightweightdesignintheautomotiveindustry-PotentialSource:AudiAGPotentialofvariousmaterialswithregardtolightweightdesignSteelAluminumCFRPQuasi-isotropicCFRPunidirectionalCopyrightSchulerSMG20136OverviewofpresentationMotivationfortheuseofCFRPpartsinautomotiveindustryThevacuum-assistedhighpressureRTMpressprocessPresstechnologyforthehighpressureRTMprocesswithexampleofsuppliedpresses36,000kN–3.6x2.4mSystemoverviewofcompleteRTMprocessNewdevelopmentofpresstechnologyCopyrightSchulerSMG20137PressprocessesforfiberreinforcedplasticThermosettingplasticsThermoplasticsLongfibers50mmarbitraryfiberSMC/D-SMCGMT/LFT/LFT-DEndlessfibers50mmDedicatedfiberorientationRTM/HP-RTMOrganicsheete.g.decklid,bumper…e.g.sparewheelwell,frontend…e.g.passengercell,roof…e.g.seatshell,frontend…Source:BMWAGandBASFCopyrightSchulerSMG20138ThevacuumassistedhighpressureRTMpressprocessPreformplacementPressclosing,startapplyvacuumResininjection,withpositioncontrolCuringwithcompressionforceForceupto36.000kNCopyrightSchulerSMG20139MoldopeningPressopeningUnloadpartMoldcleaningMoldbreakopenforceUpto5.000kNThevacuumassistedhighpressureRTMpressprocessCopyrightSchulerSMG201310OverviewofpresentationMotivationfortheuseofCFRPpartsinautomotiveindustryThevacuum-assistedhighpressureRTMpressprocessPresstechnologyforthehighpressureRTMprocesswithexampleofsuppliedpresses36,000kN–3.6x2.4mSystemoverviewofcompleteRTMprocessNewdevelopmentofpresstechnologyCopyrightSchulerSMG201311CFRPsamplepartsproducedonSchulerpressesBMWi3–passengercellCopyrightSchulerSMG2013BMWM3–roofSource:BMWAG,UniformwallthicknessofthepressedpartMaintainingofresininjectionpositionforgap-injectionMinimizingofnon-productivetimeformoldcleaning/handlingReliablemediasupplytothemoldsShortpressurebuild-upandefficientenergyuseCopyrightSchulerSMG201313UniformwallthicknessofthepressedpartPressstaticswithcongruentbendinglinesofslideandtableParallelismofslidetotablealsoathigheccentricloadRequirementsfortheRTMpressCopyrightSchulerSMG201314PressdesignwithcongruentbendinglinesTraditionaldesignDesignwithcongruentbendinglinesWallthicknessnon-uniformUniformwallthicknessRaisingdeviationofbendinglinesCopyrightSchulerSMG201315UniformwallthicknessofthepressedpartPressstaticswithcongruentbendinglinesofslideandtableParallelismofslidetotablealsoathigheccentricloadRequirementsfortheRTMpressCopyrightSchulerSMG201316HydraulicslideparallelismcontrolEccentricloadfortheslideresultsfromtheprocessNon-symmetricpartgeometry=eccentriccenterofforceloadTheliquid/pasty-likeresincompoundflowsarbitrarily,whenclosingthemoldCenterofforceloadCounter-actingparallelismcontrolcylindersPressframeMoldCopyrightSchulerSMG201317RequirementsfortheRTMpressUniformwallthicknessofthepressedpartMaintainingofresininjectionpositionforgap-injectionMinimizingofnon-productivetimeformoldcleaning/handlingReliablemediasupplytothemoldsShortpressurebuild-upandefficientenergyuseCopyrightSchulerSMG201318MaintaininginjectionpositionoftheslideTask:Maintainingofinjectionpositionagainstrisinginternalresinpressureandrisingeccentricalload.Solution:Closed-loopcontrolforposition+parallelismwithsetvaluepositionofparallelismcylindersandactuatingvalueslideforceResininjectionwithslidepositioncontrolCavitypressureFatinjectionupto25.000kNCopyrightSchulerSMG201319RequirementsfortheRTMpressUniformwallthicknessofthepressedpartMaintainingofresininjectionpositionforgap-injectionMinimizingofnon-productivetimeformoldcleaning/handlingReliablemediasupplytothemoldsShortpressurebuild-upandefficientenergyuseCopyrightSchulerSMG201320Designwith2movingbolstersTwolowermoldsandoneshareduppermoldPartloadingandunloadingduringthesecondaryprocessingtimeCleaningofthelowermoldduringthesecondaryprocessingtimeCopyrightSchulerSMG2013movingbolster1movingbolster2free