毕业设计外文翻译-冲压模具设计成型方面

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1、湖北汽车工业学院科技学院毕业设计（外文翻译）湖北汽车工业学院科技学院毕业设计（论文）英文翻译课题名称基于UG的高顶盖后板修边模参数化设计系部材料工程系专业材料成型及控制工程班级KT633-01学号2006K330130姓名何杏指导教师李芳华2010年3月10日21湖北汽车工业学院科技学院毕业设计（外文翻译）4Sheetmetalformingandblanking4.1Principlesofdiemanufacture4.1.1ClassificationofdiesInmetalforming,thegeometryoftheworkpieceisestablishedentirelyor

2、partiallybythegeometryofthedie.Incontrasttomachiningprocesses,ignificantlygreaterforcesarenecessaryinforming.Duetothecomplexityoftheparts,formingisoftennotcarriedoutinasingleoperation.Dependingonthegeometryofthepart,productioniscarriedoutinseveraloperationalstepsviaoneorseveralproductionprocessessuc

3、hasformingorblanking.Oneoperationcanalsoincludeseveralprocessessimultaneously(cf.Sect.2.1.4).Duringthedesignphase,thenecessarymanufacturingmethodsaswellasthesequenceandnumberofproductionstepsareestablishedinaprocessingplan(Fig.4.1.1).Inthisplan,theavailabilityofmachines,theplannedproductionvolumesof

4、thepartandotherboundaryconditionsaretakenintoaccount.Theaimistominimizethenumberofdiestobeusedwhilekeepingupahighlevelofoperationalreliability.ThepartsaregreatlysimplifiedrightfromtheirdesignstagebyclosecollaborationbetweenthePartDesignandProductionDepartmentsinordertoenableseveralformingandrelatedb

5、lankingprocessestobecarriedoutinoneformingstation.Obviously,themoreoperationswhichareintegratedintoasingledie,themorecomplexthestructureofthediebecomes.Theconsequencesarehighercosts,adecreaseinoutputandalowerreliability.Fig.4.1.1Productionstepsforthemanufactureofanoilsump21湖北汽车工业学院科技学院毕业设计（外文翻译）Type

6、sofdiesThetypeofdieandthecloselyrelatedtransportationofthepartbetweendiesisdeterminedinaccordancewiththeformingprocedure,thesizeofthepartinquestionandtheproductionvolumeofpartstobeproduced.Theproductionoflargesheetmetalpartsiscarriedoutalmostexclusivelyusingsinglesetsofdies.Typicalpartscanbefoundina

7、utomotivemanufacture,thedomesticapplianceindustryandradiatorproduction.Suitabletransfersystems,forexamplevacuumsuctionsystems,allowtheinstallationofdouble-actiondiesinasufficientlylargemountingarea.In