欢迎来到天天文库
浏览记录
ID:235978
大小:243.58 KB
页数:28页
时间:2017-07-11
《立体光照成型的注塑模具工艺的综合模拟-外文翻译》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、附录2IntegratedsimulationoftheinjectionmoldingprocesswithstereolithographymoldsAbstractFunctionalpartsareneededfordesignverificationtesting,fieldtrials,customerevaluation,andproductionplanning.Byeliminatingmultiplesteps,thecreationoftheinjectionmolddirectlybyarapidprototyping(RP)processholdsthebest
2、promiseofreducingthetimeandcostneededtomoldlow-volumequantitiesofparts.ThepotentialofthisintegrationofinjectionmoldingwithRPhasbeendemonstratedmanytimes.WhatismissingisthefundamentalunderstandingofhowthemodificationstothemoldmaterialandRPmanufacturingprocessimpactboththemolddesignandtheinjectionm
3、oldingprocess.Inaddition,numericalsimulationtechniqueshavenowbecomehelpfultoolsofmolddesignersandprocessengineersfortraditionalinjectionmolding.Butallcurrentsimulationpackagesforconventionalinjectionmoldingarenolongerapplicabletothisnewtypeofinjectionmolds,mainlybecausethepropertyofthemoldmate
4、rialchangesgreatly.Inthispaper,anintegratedapproachtoaccomplishanumericalsimulationofinjectionmoldingintorapid-prototypedmoldsisestablishedandacorrespondingsimulationsystemisdeveloped.Comparisonswithexperimentalresultsareemployedforverification,whichshowthatthepresentschemeiswellsuitedtohandleRPf
5、abricatedstereolithography(SL)molds.KeywordsInjectionmoldingNumericalsimulationRapidprototyping1IntroductionIninjectionmolding,thepolymermeltathightemperatureisinjectedintothemoldunderhighpressure[1].Thus,themoldmaterialneedstohavethermalandmechanicalpropertiescapableofwithstandingthetemperatur
6、esandpressuresofthemoldingcycle.Thefocusofmanystudieshasbeentocreatetheinjectionmolddirectlybyarapidprototyping(RP)process.Byeliminatingmultiplesteps,thismethodoftoolingholdsthebestpromiseofreducingthetimeandcostneededtocreatelow-volumequantitiesofpartsinaproductionmaterial.Thepotentialofintegra
7、tinginjectionmoldingwithRPtechnologieshasbeendemonstratedmanytimes.ThepropertiesofRPmoldsareverydifferentfromthoseoftraditionalmetalmolds.Thekeydifferencesarethepropertiesofthermalconductivityandelasticmodulus(rigidi
此文档下载收益归作者所有