In the paper, study on displacement law of blank hole for forming cylindraceous with bottom border by numerical simulation technology.

• 通过数值仿真研究了带底孔的圆筒形件成形后底孔的变形规律,在此基础上建立了带底孔的圆筒形件成形后毛料中心孔变形规律的经验公式。