轴对称带孔板拉深-翻孔复合变形的实验研究  

Experimental study on composite deformation of drawing-flanging for axisymmetric holed slab

作　　者：余江鸿[1] 胡成武[1] 占奇锋[1] 彭炎荣[2] 

机构地区：[1]湖南工业大学机械工程学院,株洲412008 [2]湘潭大学,湘潭411005

出　　处：《塑性工程学报》2010年第6期14-17,共4页Journal of Plasticity Engineering

基　　金：湖南省教育厅十一五重点学科资助项目;湖南省高等学校科学研究资助项目(10C0619)

摘　　要：文章就轴对称带孔板拉深成形工艺参数,对成形载荷及变形趋向影响规律进行实验研究。分析预冲孔尺寸、凸模行程对变形趋向的影响,以及两者与成形载荷的关系。该研究结果可为冲压加工中先冲孔后拉深、修孔工序设计及利用冲制工艺孔释放难成形部位应力,提高变形程度的工艺措施提供依据。The experimental study on the influencing regularity of the technological parameters to the deformed tendency the forming load during drawing forming axisymmetric holed slab was carried out.The influence of the pre-punched hole size,and punching stroke on the deformed tendency their relation with the forming load were analyzed.Result of experiment can be used as basic-consideration for the process design of drawing after hole punching and the technological measures to punch technological hole for releasing stress at the region difficult to form to improve the deformation degree.

关 键 词：轴对称带孔板 拉深 复合成形 实验研究 

分 类 号：TG386[金属学及工艺—金属压力加工]