胀形模应力分析及结构改进  

Stress Analysis of Expansion Mold and Structural Improvements

作　　者：周钢[1] 曾旭辉 陈建山[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004 [2]南方动力机械公司摩托车制造厂,湖南株洲412002

出　　处：《中南林学院学报》2006年第5期85-88,共4页Journal of Central South Forestry University

基　　金：中南林学院青年科技基金资助项目"热固性塑料注射成型研究"(科研101-0046项).

摘　　要：在摩托车油箱类大型制件的胀形模生产中．由于材料拉伸变形较大,容易导致零件开裂、起皱等问题．通过对零件在拉仲胀形过程的应力分析,确定零件在成形中产生内皱等故障的原因．并对模具结构进行改进,用聚氨醣橡胶代替原钢制凸模,很好地解决了零件出现的缺陷．在生产中已获得了成功并投入使用．Cracks, goffers and other defects often occur because of the big tensile deformation in the production, by expansion mould, of large workpieces of motorcycle oil tanks. By analyzing the stress during the tensile and expansion processes of workpieces and formatting the causes of internal golfers, we improve the mold structure and use polyurethane rubber instead of steel convex mold, This improvement eliminates the defects from workpieces and can be successfully used in production.

关 键 词：胀形横 应力分析 结构改进 

分 类 号：TG38[金属学及工艺—金属压力加工]