【作者】 肖小亭； 刘丹； 廖毅娟； 陈登；

【Author】 XIAO Xiao-ting~1,LIU Dan~1,LIAO Yi-juan~1,CHEN Deng~2 (1.Faculty of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China;2.Guangzhou Huaguan Parts Co.Ltd.,Guangzhou 510420,China)

【机构】 广东工业大学材料与能源学院； 广州华冠精冲零件有限公司；

【摘要】 本文针对侧壁带矩形孔圆筒形件的结构特点,提出采取先冲孔后拉深成形的工艺方案.借助于计算机模拟和实验研究,比较了预冲孔的形状、大小对拉深成形的影响程度.结果显示:与不带侧孔的相同尺寸的圆筒形零件拉深相比.只要预制孔的形状合理,带侧孔一次拉深不但可以使拉深成形后侧壁孔的形状尺寸满足要求,而且能节省工序、获得更大的拉深高度,实现低碳成形目的.更多还原

【Abstract】 According to structure characteristics of cylindrical cup with rectangular holes,a process way that it takes first punching and then drawing is introduced in this paper.With the help of computer simulation and experimental research,the effects of pre-punched’s shape and size on the sheet metal forming limits during drawing process were compared between the blank with prefabrication holes and that without hole. Result showed that the deep drawing of blank with prefabrication holes not only can get good shape and dimensions, but also save process and obtain greater drawing height,in comparison with blank without holes,and can achieve the goal of low-carbon forming purposes.更多还原