球面压料面对方盒形件成形的影响  

EFFECT OF SPHERICAL BLANK HOLD SURFACE ON SQUARE BOX PART FORMING

作　　者：杨玉英[1] 徐伟力[1] 邢忠文[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《塑性工程学报》1997年第3期28-32,共5页Journal of Plasticity Engineering

摘　　要：大型覆盖件成形的主要问题是毛坯悬空部分的起皱与破裂，对该部分毛坯的正确而有效的控制主要通过压料面来实现。因此压料面是覆盖件成形中的工艺要素。本文实验研究了压料面形式对方盒形件拉深变形的影响，得到平面、凸球面、凹球面形状压料面对成形力、成形极限、应变分布的影响规律。The major problems in large covering-parts forming are wrinkle and breakage of blank in the suspending area Properly and effectivly controlling of deformation of such part is realized through blank-hold surface,which is the key technology factor in covering-parts forming In this paper,the effect of shape of blank-hold surface on the drawing deformation of square box parts is studied,and the influence of such blank-hold surface as plane、up-spherical surface and down-spherical surface in forming load,forming limits,and distribution of strain is achieved

关 键 词：压料面 方盒形件 拉深 成形极限 球面 

分 类 号：TG386.32[金属学及工艺—金属压力加工]