CAE在氣體輔助注塑成型中的應(yīng)用技術(shù)研究.pdf

1、山東大學(xué)碩士學(xué)位論文CAE在氣體輔助注塑成型中的應(yīng)用技術(shù)研究姓名：周善崇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料加工工程指導(dǎo)教師：張國(guó)強(qiáng)20080505山東大學(xué)碩士學(xué)位論文ABSTRACTGasassistedinjectionmolding(GAIM)isaninnovativemoldingtechnicaldevelopedinthe1970’Sandenteredthestageofpracticalinthe1990’SIthasthea

2、dvantageofbothfoammoldingandinjectionmolding，whichprovidesgreaterflexibilityandfreedomofplasticproductdesignandproductionDuetotheintroductionofgas，themeltflowhasbecomeverycomplex，andthedifficultyofCAEanalysisisincreasedB

3、asedonthestudyofcrosssectiontemperaturedistributionofgas—channel，improvedfinitedementmodelofequivalentgas—channelareconstructedinthepaperAnditcomeoutthatusingtheimprovedmodel，theas—assistedinjectionmoldingfinitedementsim

4、ulationaccuracycanbeimprovedThreelevelsandsixfactorsL18DOEviaTaguchimethodisusedtostudytheeffectofprocessingparametersMultipleregressionstatisticalanalysisroutineisprogrammedtoanalyzetheresultdataconsequentlytheinfluence

5、regularofprocessBymeanofstudyingverticalangleandTshapinggaschannelcrosssectiontemperaturedistribution，equivalentbeamandshellelementofdifferentsectionshapesofgaschannelsarederivedandthreemoldsimplifymethodsareproposed，whi

6、chcallimprovetemperaturedeviationinCAEanalysiscausedbythethinribpartThestudyalsoshowsthat，inordertoavoidfingeringeffect，theminimumratioofthechannelradiustopartthicknessistwoTheproposedCAEmethodsandregularmethodareusedtoa

7、nalyzetwoprinterCOVerplates，andcomparativeanalysisineachgroupiscardedoutSignificantlyimprovedanalysisresultsbythesecondandt11irdmodelareobservedinbothgroupsThepredictionofshotsize，gaspenetrationandgasdelaytimeismuchclose