预览加载中，请您耐心等待几秒...

基于CAE技术的注塑件翘曲变形分析及模具改进.docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

基于CAE技术的注塑件翘曲变形分析及模具改进 Abstract: Withtherapiddevelopmentofinjectionmoldingtechnology,therequirementsfortheaccuracyandqualityofinjection-moldedpartsarebecomingincreasinglydemanding.Amongthem,thewarpingdeformationofinjection-moldedpartsisacommonqualityproblem.Inthispaper,thedeformationmechanismofinjection-moldedpartsinwarpingdeformationandtheinfluenceofmoldfactorsonwarpingdeformationareanalyzedbasedonCAEtechnology.Throughtheoptimizationofthemoldstructureandprocessparameters,thequalityofinjection-moldedpartscanbeimprovedeffectively. Keywords:injectionmolding,warpingdeformation,CAEtechnology,moldimprovement 1.Introduction Withthecontinuousdevelopmentofmodernscienceandtechnology,theapplicationofplasticproductsinvariousindustrieshasbecomemoreandmoreextensive.Injectionmoldingtechnology,asoneofthemainmethodsforproducingplasticproducts,hasbeenwidelyusedduetoitshighefficiencyandhighprecision.However,intheprocessofinjectionmolding,warpingdeformationisacommonqualityproblem.Thewarpingdeformationofinjection-moldedpartsnotonlyaffectstheappearanceoftheproductsbutalsoaffectsthedimensionalaccuracyandmechanicalpropertiesoftheproducts,whichseriouslyaffectsthequalityoftheproducts. 2.AnalysisofDeformationMechanism Thewarpingdeformationofinjection-moldedpartsismainlycausedbytheunevencoolingoftheparts.Duringthemoldfillingprocess,themoltenplasticisinjectedintothecavityunderhighpressureandhighspeed.Afterthefillingiscompleted,thecoolingprocessbegins.Duetotheuneventhermalconductivityofthematerial,thecoolingrateofthedifferentpartsofthepartisnotuniform,resultinginunevenshrinkage.Theunevenshrinkagecausesstressinthepart,whichleadstowarpingdeformation. Inaddition,thedeformationofinjection-moldedpartsisalsoaffectedbythesize,shape,andorientationoftheparts.Theuneventhicknessofthepartsandtheinternalstresscausedbythecoolingprocesswillalsoleadtowarpingdeformation. 3.InfluenceofMoldFactorsonDeformation Themolddesignandprocessparametershaveagreatinfluenceonthewarpingdeformationofinjection-moldedparts.Thefo