目录一、冲压模具设计任务（工件示意图）................................5二、拉伸件工艺性分析..............................................51、拉伸件工艺性分析...........................................52、确定工艺方案及模具结构形式.................................6三、模具工艺计算..................................................61、毛胚落料模的工艺计算.......................................61、预定毛坯尺寸..............................................62、排样与搭边................................................73、冲裁力计算................................................84、确定压力中心..............................................85、凸、凹模刃口尺寸计算......................................86、模具轮廓尺寸计算..........................................97、模具总装图................................................98、冲压设备的选择..........................................102、拉伸模的工艺计算.........................................101、拉伸力计算..............................................102、拉伸模工作部分尺寸计算..................................103、冲压设备的选择..........................................123、整形模的工艺计算.........................................124、修边及冲孔复合模的工艺计算...............................131、总冲裁力计算............................................132、压力中心计算............................................133、冲模刃口尺寸计算........................................144、冲压设备的选择..........................................155、模具三维立体爆炸图......................................155、剖切模的工艺计算.........................................161、总冲裁力计算............................................162、压力中心计算............................................163、凸、凹模刃口尺寸计算....................................174、剖切模主要零件轮廓尺寸及剖切过程........................175、冲压设备的选择..........................................19四、模具工作零件加工工艺规程....................................191、落料凹模加工工艺规程.....................................192、凸凹模加工工艺规程.......................................203、冲孔凸模加工工艺规程.....................................21附1、专业英文翻译（ISO9000）参考文献防尘罩拉伸模设计摘要：本文详细介绍了汽车启动电机上的防尘罩的落料、拉伸、整型、修边冲孔、剖切，5副模具的设计过程及其工艺分析。零件所用材料为08F，板厚1mm。零件尺寸精度要求不高，但形状较复杂，工序较多。本文附零件图、各模具总装图、复合模具三维模型爆炸图，另附专业中英文翻译一篇。关键词：防尘罩，拉伸模DesignofDrawingDiesforDustGuardsAbstract:Thistextintroducesthedesigningprocessandtheprocessingtechnologyof5setsofdiesduringproducingthedustguardsofstartingelectricmotorofautomobilesindetails,whichincludeblanking、drawing、forming、trimmingandpiercing、slittingthematerials.Thematerialforthepartsis08Fand1mmthick.Thereisnohighrequestputonthesizeaccuracyofthepart,butforitscomplicatedshape,morestepsareneeded.Inthetext,therearepictureofparts、assembleddiesand3-DexplosionpicturesofthediemodeltogetherwithatranslationoftheprofessionalEnglish.Keywords:dustguards,drawingdies一、冲压模具设计任务（工件示意图）工件名称：防尘罩拉伸模设计材料：08F,t=1mm零件如图1：图1二、拉伸件工艺性分析１、拉伸件工艺分析材料为08F，为优质碳素结构钢（已退火），其抗剪强度τ=220~310MPa，抗拉强度σb=280~390MPa，伸长率δ10为32%，屈服强度σs=1...
