曲线回转外形筒体零件无飞边辊轮引伸新技术  

Research on the new technology of the no-flash roll-die drawing of cylinder parts with curvilinear rotating shape

作　　者：王宏伟[1] 张宝红[2] 张治民[2] 

机构地区：[1]中北大学材料科学与工程学院,太原030051 [2]山西省集成精密成形工程中心,太原030051

出　　处：《塑性工程学报》2014年第3期31-35,共5页Journal of Plasticity Engineering

基　　金：国防基础科研项目(A332011XXXX);太原市科技计划资助项目(120164001)

摘　　要：为解决曲线回转外形筒体零件辊挤成形过程中产生飞边的难题,开发出一种该类零件的两道次无飞边辊轮引伸新技术。对辊轮的结构参数(飞边槽开口角度、飞边槽转角圆角半径)进行优化,在分析各参数自变化条件下去飞边工序的变形均匀性及辊轮所受径向载荷的基础上,结合模拟的充填情况确定了最优的辊轮关键结构参数;对比新旧两种成形工艺,新工艺下辊轮所受径向载荷降低28.66%,为曲线回转外形筒体零件无飞边成形工艺提供了理论依据。To solve the burr problem in the roll extruding forming of cylinder parts with curvilinear rotating shape ,a new technol-ogy of the no-flash roll-die drawing with two-pass was developed for these parts .By optimizing the opening angle and corner radi-us of the flash cavity ,via analyzing the deformation homogeneity in deflashing process and radial load suffered by the rollers at different conditions ,combining the simulation obtained filling conditions ,the optimal structural parameters of the roller were ob-tained ;The radial loads suffered by the rollers were compared for the old process and the new one . The study provides a theoreti-cal basis for the new technology of the no-flash roll-die drawing of cylinder parts with curvilinear rotating shape .

关 键 词：辊轮引伸 曲线回转外形筒体零件 结构优化 变形均匀性 

分 类 号：TG376[金属学及工艺—金属压力加工]