河北工程大学科信学院毕业设计河北工程大学科信学院毕业设计摘要铝合金制品，其重量轻、抗冲击、耐用等方面优势，是减轻重量和提升产品性能的重要材料之一。6061铝合金中的主要合金元素为镁与硅，具有中等强度、良好的可成型性、抗腐蚀性、可焊接性、氧化效果较好，而且它的相变温度和锻造温度均较低，非常适合采用等温模锻方法制造复杂结构件。本文对摩托车铝合金消声器尾盖进行锻造工艺分析，确定铝合金6061锻造热力学参数，确定锻件毛坯的加热方法，锻造模具的预热方法。通过其锻造工艺分析，确定成型方案之后，用三维软件（PRO/E）设计该零件的锻造模具。有限元数值模拟己经逐渐发展成为研究锻造过程的有效工具。本文使用大型锻造专用软件DEFORM-3D对铝合金6061复杂结构件等温锻造过程进行了模拟，充分了解金属的流动规律、应力应变分布规律，用三维软件（DEFORM-3D）的有限元分析模块分析了模具的应力应变规律，为锻造和模具设计过程提供有参价值的数据，从而可以减少试模时模具破裂的机率。关键词：锻造铝6061PRO/EDEFROM-3DABSTRACTThealuminumalloyisoneimportantmaterialforlighteningtheproductweightandimprovingtheproductperformance,becauseofthelightweight,theanti-impactandthedurableuseofitsproduct.Themainalloyingelementsinthealuminumalloy6061arethemagnesiumandthesilicon.Itsproducthasthemediumintensity,thegoodformability,theanti-cauterization,goodwelding,andthegoodoxidizedeffect;alsoitstransformationtemperatureandtheforgingtemperaturearelower,soitisextremelysuitabletomanufacturecomplexstructurebyusingtheIsothermalForgingmethod.Inthisthesis,theforgingcraftofthealuminumalloysilencercoverofthemotorcycleisanalyzed,thentheforgingthermodynamicparameterofthealuminumalloy6061,themethodofheatinguptheforgingbilletandthepreheatingmethodoftheforgingdiesaredefined.Throughtheforgingcraftanalysis,theshapingmethodoftheforgedpieceisdeterminedandthentheforgingdiesisdesignedwiththethreedimensionalsoftware(PRO/E).NumericalsimulationbasedonFEMhasbecomeapowerfultoolonanalyzingforgingprocess.Inthispaper,3-Dnumericalsimulationsforisothermalforgingprocessesofacomplexstructuralcomponentofaluminumalloy6061wereperformedbyusingofDEFORM-3Dsoftware.Theflowingruleofthealloy,thestrainandthestressdistributionrulewithintheworkpiecewereanalyzedinthesimulation.Alsothestrainandthestressdistributionruleofthedieswereanalyzedbyusingthethreedimensionalsoftware(DEFORM-3D).Theresultsofthesimulationsoffervaluabledatafortheforgingandthedesigningofthedies,sothedamagechanceofdiesisreducedwhentestingthemolds.Keywords:forgingAluminumalloy6061PRO/EDEFROM-3D目录TOC\o"1-3"\