异形薄壁罐气压胀形工艺参数优化.pdf

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1、机床与液压Sep．2013HydromechatronicsEngineeringVo1．41No．18DOI：10．3969／j．issn．1001—3881．2013．18．025ProcessParameterOptimizationonPneumati‘cBulgRingRforAbnormityThin-wallPotSONGZhiping，CUIShuping，HUANGTe．ShanxiInstituteofMechanicalandElectricalEngineering，Changzhi046011，China；2．Yong

2、kangVocationalandTechnicalSchool，Yongkang321300，ChinaAbstract：TOenhancetheformingqualityofpneum~icbulgingforabnormitythin-wallpotandre·ducesuchformingdefectsasseverewallthicknessreductionandfoldbreaks．BasedonnumerI-caIsimulation．thisarticleanalyzestheimpactofthefrictionfacto

3、r．dieradiusofcurvature，potwallthicknessandloadpressureonthewalIthicknessreductionrate．maximumstressandaxiaIcontraction．Theexperimentresultisconsistent．withthatofthenumericaIsimulation．There-searchresultshavegreaterpracticalvaluetoprocessoptimizationandprocesscontro1．Keywords

4、：AbnormityThin-wallpot，processparameter，numericalsimulation，optimizationTherefore，itisnecessarytomakefurtherresearchon1．Introductionpneumaticbulgingprocessparameter．Abnormitythin-wallpotisametalcontainero±2．Thefinite．elementmodelandnumericaldifferentshapesmadethroughpartiale

5、xpansionorsimulationschemerollingdesigns．Abnormitythin—wallpotiswellknownforitsuniqueappearancetoconsumers，anditUsingmetalformingstimulationspecialsoftwareispopularwithmanufacturersforbeingeffectiveinDYNAFORM，tobuildthefinite—elementmodelofraisingaddedvalueofproducts．Ithasbr

6、oadmarketabnormitypotsemi—finishedproductandthemould，demandanddevelopingspaceathomeandabroadasshowninFig．1．[1]．Abnormitythin—wallpothasthinnerthicknessmi—finishedpot(6=0．17～0．28mm[1])，sometimesitshouldbearacertainamountofpressureandcorrosion，anditalsohashigherqualityrequirem

7、entsforformingparts，whichishardtoachievethroughtraditionalmoldingmethods．Thepneumaticbulgingisanewprocessandtechnologywithgreatprospects[2]．Astheformingprocessisaffectedbymaterialperform-ance，earthenwaresize，mouldshape，frictionstatusFig．1Finite—elementmodelofsemi—finishedand

8、manyotherfactors[3—4]，improperparameterpotandmouldwillnotgetidealthicknessd