无凸缘低盒形件圆角区毛坯尺寸优化的研究  

Study on optimization of blank corner dimensions of shallow square boxes without flanges

作　　者：周杰[1] 牛东民[1] 张渝[1] 杜安明[1] 夏玉峰[1] 

机构地区：[1]重庆大学机械工程学院,400044

出　　处：《锻压技术》2004年第6期18-19,58,共3页Forging & Stamping Technology

摘　　要：通过对圆角半径较大的低盒形件无压边拉深成形进行有限元模拟与实验比较分析和盒形件成形过程中圆角区毛坯尺寸对成形高度的影响规律的研究 ,表明在计算毛坯展开尺寸时 。The drawing process without BHF of shallow square boxes with larger corner radius was simulated by FEM technology and its results are analyzed and compared with tests. The rule that blank corner dimensions influence on the height shaped during the drawing process of square boxes is investigated. The results indicate that in order to ensure the pre-shaped height of parts formulas with correction should be used when the unfold sizes of blank are calculated.

关 键 词：毛坯尺寸 盒形件 圆角 凸缘 无压边拉深 毛坯展开 成形过程 半径 公式 影响规律 

分 类 号：TG386[金属学及工艺—金属压力加工] TG385.2