非对称方锥台件数控渐进成形研究  

Study on incremental forming of asymmetry square cone

作　　者：赵仕宇 高平生 詹艳然[2] 

机构地区：[1]宁德职业技术学院机电工程系,福建福安355000 [2]福州大学机械工程及自动化学院,福建福州350108

出　　处：《锻压技术》2013年第4期152-156,共5页Forging & Stamping Technology

基　　金：福建省教育厅A类项目(JA12453);福建省自然科学基金资助项目(2008J0153)

摘　　要：针对非对称方锥台件的数控渐进成形工艺,采用有限元数值模拟与实验相结合的方法,分析了单道次和两道次的成形极限图和壁厚变化情况,研究了两道次成形时不同成形路径对成形质量的影响。结果表明:两道次渐进成形可提高零件的可成形性,但在成形路径设计时应考虑侧壁成形角对成形性能的影响,避免由于前后道次径向差异过大而引起的成形件壁厚过度减薄及底部下沉现象。The numerical control incremental sheet forming technology of asymmetry square component was studied based on finite element method and experiments,which included the difference of forming limit diagrams and the change of wall thickness between single-stage and double-stage forming,and the influence on forming quality by different forming paths in double-stage forming.It was found that the formability of components can be improved by double-stage forming,but the influence of forming angle of component’s wall on formability should be considered to avoid excessive thinning in the wall and sinkage in the bottom of components due to wide variance in the radial direction.

关 键 词：非对称方锥台件 渐进成形 有限元模拟 成形路径 成形极限 

分 类 号：TH165[机械工程—机械制造及自动化]