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.
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.
出处
《材料研究与应用》
CAS
2010年第4期546-548,共3页
Materials Research and Application
基金
广州市经贸局企业技术改造项目(编号:2008-35)
关键词
侧壁带孔筒形件
拉深工艺
低碳成形
side walls with hole-shaped parts
deep drawing process
low-carbon forming
