基于AutoForm的天地盖成型起皱仿真研究.pdfVIP

机械工程师

MECHANICALENGINEER

基于AutoForm的天地盖成型起皱仿真研究

王中盟，朱仁胜，柏强，彭桠龙，杜恒

（合肥工业大学机械工程学院，合肥230009）

摘要：

为了解天地盖工件的成形起皱机理，以995铝合金为研究对象，通过有限元分析方法，利用AutoForm软件定量模

拟坯料在不同形状、压边力、冲压速度、摩擦因数、圆角半径和凸模工艺面宽度下的成形起皱。结果表明：与长方形和圆角形

坯料相比，采用切角的八边形坯料可以减轻工件的成形起皱；冲压速度对工件的成形起皱影响较小，几乎可以忽略不计，而

压边力、摩擦因数和圆角半径的影响则相对较大，选用较大压边力、摩擦因数和圆角半径可以减轻工件的成形起皱；凸模工

艺面宽度越小，工件成形起皱越小。该研究结果为实际生产提供了理论依据。

关键词：

工艺参数；几何参数；数值模拟；起皱

中图分类号:TG386.3文献标志码:粤文章编号：员园园圆原圆猿猿猿（圆园24）02原园004原园4

AutoForm-basedSimulationStudyofWrinklingintheMoldingoftheUpperandLowerLid

WANGZhongmeng,ZHURensheng,BAIQiang,PENGYalong,DUHeng

(SchoolofMechanicalEngineering,HefeiUniversityofTechnology,Hefei230009,China)

Abstract:Inordertounderstandthemechanismofformingwrinklingoftheworkpieceoftheupperandlowerlid,thispaper

takes995aluminumaoyastheobjectofstudy,andsimulatestheformingwrinklingoftheblankunderdifferentshapes,

crimpingforce,stampingspeed,frictioncoefficient,radiusofthecornerandwidthoftheprocesssurfaceofthediebymeans

offiniteelementanalysisandAutoformsoftware.Theresultsshowthattheformingwrinklingofoctagonablankwithcorner

cuttingcanbereducedcomparedwithrectangularandfietblank.Theinfluenceofstampingspeedandfrictioncoefficient

ontheformingwrinkleofworkpieceissmaandalmostnegligible,whiletheinfluenceofblankholderforceandfietradius

isrelativelylarge.Selectinglargerblankholderforceandfietradiuscanreducetheformingwrinkleofworkpiece.The

smaerthewidthoftheprocesssurfaceofthepunch,thesmaerthewrinklingoftheworkpiece.Theresultsofthestudy

provideatheoreticabasisfortheworkpiecetobeusedinpracticaproduction.

Keywords:processparameters;geometricparameters;num