moldflow 改善产品变形问题

Reported:Bill.Bin1-282006-06-261.ProjectSummary--------------------------------------------------------------------------22.Plasticmaterialinformation----------------------------------------------------------33.Analysispurpose&Processcondition-------------------------------------------44.Partinformation,Runnerandcoolingsystemdesign---------------------6~85.Analysisresult--------------------------------------------------------------------------9~276.Conclusion&suggestion-------------------------------------------------------------28MoldFlowReportReported:Bill.Bin2-282006-06-26MoldFlowReportcase1case2MoldNO：Ｂ１０２７４Preparedby:Bill.BinCavitynumber:1*2Analysispurpose:improvewarpage。AnalysisProject:Cool+Fill+Pack+WarpCase1isthe3Ddesign.Case2isrevisemolddesignandmodifiedtheprocesscondition.Reported:Bill.Bin3-282006-06-26MaterialPropertyViscosityvsShearrateP-V-TABSPolylacPA-737Manufacturer:ChiMeiCorporation1.MeltDensity:0.96055g/cu.cm8.MeltTemperatureMaximum240deg.C2.SolidDensity:1.0494g/cu.cm9.MoldTemperatureMinimum40deg.C3.EjectionTemperature90deg.C10.MoldTemperatureMaximum80deg.C4.RecommendedMold60deg.C11.MaximumShearRate500001/s5.RecommendedMeltTemperature220deg.C12.MaximumShearStress0.5Mpa6.Fillerunfilled13.Thermalconductivity0.19(k)w/m.c7.MeltTemperatureMinimum200deg.C14.MeasuredMFR3g/10min(5kg/200.C))Reported:Bill.Bin4-282006-06-26ProcesssettingAnalysispurpose:improvewarpageAnalysisProject:Cooling+flow+WarpageProcesssettingcase1MoldTemperature:60/65℃MeltTemperature:220℃FillTime:automaticCoolingtime:60SV/Pswitch-over:99%offilledvolumepack80%V/P10Scase280%X0.3+0X1.5+6X60%+12X100%SReported:Bill.Bin5-282006-06-26PartinfomatiomThicknessdistributionReported:Bill.Bin6-282006-06-26CoolingsystemdesignAllcaseisbase2dmolddesign.Reported:Bill.Bin7-282006-06-26RunnersystemdesignCase1isbase2dmolddesign，Ø12mmØ10mmØ8mmØ2.8~8mmØ10~2.8mmcase1Reported:Bill.Bin8-282006-06-26Runnersystemdesigncase2case2isreviserrunnersystem(movegate)MovegateReported:Bill.Bin9-282006-06-26FillTimeThefilltimeresultshowsthepositionoftheflowfrontatregular,asthecavityfills.EachcolorcontourrepresentthepartsofthemoldWhichwerebeingfilledatsametime..Thefilltimeisabout5.6secondinthemodel.Noracetrackeffectoccur.Airtrapappearonthelastfilledarea.Dosetenoughventoverthere.case2case1Reported:Bill.Bin10-282006-06-26FillTimeThefilltimeresultshowsthepositionoftheflowfrontatregular,asthecavityfills.EachcolorcontourrepresentthepartsofthemoldWhichwerebeingfilledatsametime..Thefilltimeisabout5.6secondinthemodel.Noracetrackeffectoccur.Airtrapappearonthelastfilledarea.Dosetenoughventoverthere.case2case1Reported:Bill.Bin11-282006-06-26PressureatV/PswitchoverTheresultshowsthepressuredistributionthroughtheflowpathinsidethemoldattheSwitchoverpointfromvelocitytopressurecontrol.case1case2Reported:Bill.Bin12-282006-06-26AirTrapTheairtrapsareshowinpinknodecase1case2Reported:Bill.Bin13-282006-06-26AirTrapTheairtrapsareshowinpinknodecase1case2Reported:Bill.Bin14-282006-06-26WeldlineNoticethepositionsoftheweldlines,whichmayaffectthequalingofthepartappearancebutwhichmaybeaffectthepartstructuralfunctions..case1case2Reported:Bill.Bin15-282006-06-26波前温度Themelttemperatureis220℃,thisthemperatureatflowfrontisallow.case1case2Reported:Bill.Bin16-282006-06-26Pressureatinjectionlocation:XYPlotTheresultshowsthepressureandclampforceatvarioustimesduringthefillingandpackingphasesoftheanalysis.case1case2Reported:Bill.Bin17-282006-06-26Clampforce:XYPlotTheresultshowsthepressureandclampforceatvarioustimesduringthefillingandpackingphasesoftheanalysis.case1case2Reported:Bill.Bin18-282006-06-26circuitcoolanttemperatureThecoolinganalysisscreenoutputcontainsthechangeincoolanttemperaturefromcoolant-intocoolant-outIftheincreaseisunacceptable(greaterthan2-3deg.c)case1case2Reported:Bill.Bin19-282006-06-26TimetofreezeTheresultshowsthethicknessofthefrozen.Ahighervaluerepresentsathickerfrozenlayer,whilelowvaluemeansathinnerpolymermelt(flow)layerCooingchannelneedtonearsprue,forreducecycletime.case2case1Reported:Bill.Bin20-282006-06-26TemperaturemoldThetemperaturemoldresultshowstheaveragetemperatureoftheplasticmoldinterfaceatthetopside,ofthemoldelementduringthecycletime.Theresultdisplaysinthemoldsurfacehasasmallrange..case2case1Reported:Bill.Bin21-282006-06-26VolumetricShrinkageatEjectionTheVolumetricshrinkageatejectionresultcanbeusedtodetectsinkmarksonthemodel.Volumetricshrinkageshouldbeuniformacrossthewholeparttoreducewarpage.Highshrinkagevaluescouldindicatesinkmarksorvoidsinsidethepart.Volumetricshrinkagecanbecontrolledbytheuseofpackingprofiles.case1case2Reported:Bill.Bin22-282006-06-26Reported:Bill.Bin23-282006-06-26Reported:Bill.Bin24-282006-06-26Reported:Bill.Bin25-282006-06-26Reported:Bill.Bin26-282006-06-26Coolandshrinkageismajorcausetoeffectwarpage.Reported:Bill.Bin27-282006-06-26Reported:Bill.Bin28-282006-06-26