注塑模具毕业设计外文翻译--立体光照成型的注塑模具工艺的综合模拟

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1、附录2IntegratedsimulationoftheinjectionmoldingprocesswithstereolithographymoldsAbstractFunctionalpartsareneededfordesignverificationtesting,fieldtrials,customerevaluation,andproductionplanning.Byeliminatingmultiplesteps,thecreationoftheinjectionmolddirectlybyarapidprototyping(RP)processholdsthebestpro

2、miseofreducingthetimeandcostneededtomoldlow-volumequantitiesofparts.ThepotentialofthisintegrationofinjectionmoldingwithRPhasbeendemonstratedmanytimes.WhatismissingisthefundamentalunderstandingofhowthemodificationstothemoldmaterialandRPmanufacturingprocessimpactboththemolddesignandtheinjectionmoldin

3、gprocess.Inaddition,numericalsimulationtechniqueshavenowbecomehelpfultoolsofmolddesignersandprocessengineersfortraditionalinjectionmolding.Butallcurrentsimulationpackagesforconventionalinjectionmoldingarenolongerapplicabletothisnewtypeofinjectionmolds,mainlybecausethepropertyofthemoldmaterialchang

4、esgreatly.Inthispaper,anintegratedapproachtoaccomplishanumericalsimulationofinjectionmoldingintorapid-prototypedmoldsisestablishedandacorrespondingsimulationsystemisdeveloped.Comparisonswithexperimentalresultsareemployedforverification,whichshowthatthepresentschemeiswellsuitedtohandleRPfabricatedst

5、ereolithography(SL)molds.KeywordsInjectionmoldingNumericalsimulationRapidprototyping1IntroductionIninjectionmolding,thepolymermeltathightemperatureisinjectedintothemoldunderhighpressure[1].Thus,themoldmaterialneedstohavethermalandmechanicalpropertiescapableofwithstandingthetemperaturesandpressureso

6、fthemoldingcycle.Thefocusofmanystudieshasbeentocreatetheinjectionmolddirectlybyarapidprototyping(RP)process.Byeliminatingmultiplesteps,thismethodoftoolingholdsthebestpromiseofreducingthetimeandcostneededtocreatelow-volumequantitiesofpartsinaproductionmaterial.Thepotentialofintegratinginjectionmoldi

7、ngwithRPtechnologieshasbeendemonstratedmanytimes.ThepropertiesofRPmoldsareverydifferentfromthoseoftraditionalmetalmolds.Thekeydifferencesarethepropertiesofthermalconductivityandelasticmodulus(rigidi