7A04鋁合金輪轂擠壓成形工藝與實(shí)驗(yàn)研究.pdf

1、中北大學(xué)碩士學(xué)位論文7A04鋁合金輪轂擠壓成形工藝與實(shí)驗(yàn)研究姓名：席鵬翀申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料加工工程指導(dǎo)教師：張治民20080523中北大學(xué)學(xué)位論文StudyonExtrusionFormingTechnologyandExperimentof7A04AluminumAlloyWheelHubAbstractAcertainwheelhubwasmadebycaststeel，andthewheelhubwasoverweigh

2、tGowiththewheelhubcastprocess，defectofcastmethodwascameoutTheperformanceofthecarwhichusethewheelhubwasfallThispaperfocusontheproblemduringwheelhubprocess，anddevelopresearchinprocessofaluminumalloywheelhubFollowtherequest

3、ofwheelhubmechanicsandapplicationenvironment，chosen7A04aluminumalloytoproducewheelhubDiscusstheparametersof7A04extrusionformingprocessandheattreatmentcriterionof7A04aluminumalloyThewheelhubinthispaperbelongtokindofwidefl

4、angetrapezoidalandthickedgebarrelfigurepartCombinewiththewheelhubfigureand7A04aluminumalloyformingprocesscharacteristics，drawingofthealuminumalloywheelhubwasbedesignedTheprocessofaluminumwheelhubwassimulatedonbaseofnumer

5、icalsimulationduringbackwardextrusionformingphase，wechosenthebestsizeofmaterialWeanalyzedinfluenceunderdifferentfrictioncoefficientduringbackwardextrusionformingphaseDuringshapingphase，afteranalyzedaboutalloyflowinfluenc

6、eusedifferentexpandingpartandmoldtransitionangle，wemakesuretheimportantprocessparameteralsoimprovedtheprocessofformingandmoldstructureEstablishedaluminumalloywheelhubprocess：backwardextrusionfroming，expanding，shapingThep

7、rocessparameterofaluminumalloywheelhubandwheelhubmolddesignwerereasonableasbeenshowinresultoftheexperimentWemadethewheelhubsuccessfulcouldshowUSthattheprocessaffordarightwaytomakesimilarfigurepartsThetensilestrengthof7A0