扁袋笼顶盖冲压模设计与成形分析  

Mould design and forming analysis for top cover of flat pocket-cage

作　　者：吴江平[1] 蒋鑫[1] 王晶晶[1] 王匀[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《浙江科技学院学报》2009年第3期227-230,共4页Journal of Zhejiang University of Science and Technology

基　　金：国家自然科学基金资助项目(50805069);中国博士后科学基金资助项目(20060390961);江苏省自然科学基金资助项目(BK2006551);高级人才启动基金资助项目(128300090);江苏省青蓝工程项目(1221110022)

摘　　要：在扁袋笼顶盖零件工艺分析的基础上,得出其优化工艺为落料—浅拉深(小于内壁高)—冲孔—内翻边,重点介绍落料拉深复合模的设计和三维建模。为了保证扁袋笼顶盖拉深成功,采用Dynaform软件模拟了扁袋笼顶盖的成形过程,对凸模圆角、凹模圆角和压边力工艺参数进行优化,并得到了其成形极限和减薄量图。结果显示,当凸模圆角5 mm、凹模圆角6.5 mm、压边力为50 kN时成形效果较好,无明显缺陷。The process of flat pocket-cage is analyzed,and the optimized process is as follows： blanking,shallow drawing with the drawing height less than inwall height,punching,and inner flanging.We design the compound die combined the blanking and drawing processes and set up the three-dimensional model by Pro/E.Finally the forming process of the flat pocket-cage is simulated by the finite element code Dynaform.The process parameters including punch profile radius,die profile radius and blank holder force are optimized.The obtained Forming Limit Diagram（FLD） and thinning disgram show that the forming quality is appropriate when the punch profile radius,die profile radius and blank holder force are 5 mm,6.5 mm and 50 kN respectively.

关 键 词：冲压 扁袋笼顶盖 落料拉深复合模 DYNAFORM 

分 类 号：TG386[金属学及工艺—金属压力加工]