一、前言带法兰盒形件同盒形件一样,由于其形状的非轴对称性导致变形变杂化,使得这类零件的成形难度较大。尤其对于带法兰高盒形件的成形难度就更大。但人们普遍认为带法兰盒形件仅仅是盒形件成形的中间过程,盒形件成形的资料完全应该适用于带法兰盒形件。因此忽视了带法兰盒形件成形的研究。带法兰盒形件有的可看作盒形件成形过程的中间状态。但是,当这种中间状态处于盒形件拉深出现最大拉深力之前,而继续拉深又不能顺利地通过这个最大拉深力时,这种带法兰盒形件就不能单纯地视为盒形件拉深过程的中间状态了。它的拉深过程的某些 I. Introduction Flange box with the same box-shaped pieces, as the shape of the non-axisymmetric deformation caused by hybridization, making the formation of such parts more difficult. In particular, the formation of flanged box parts is even more difficult. However, it is generally accepted that a flanged box is only an intermediate process for forming a box, and the forming of the box should be completely applicable to flanged box. So ignoring the study of forming flange box. Some flanged box can be seen as the middle of the box forming process. However, such a boxed flanged piece can not be considered purely as an intermediate state before the deepest force of drawing of the box-like element occurs before the maximum drawing force continues to be drawn and can not pass this maximum drawing force smoothly The middle of the box drawing process. It’s some of the drawing process