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梅花瓣状的盒子,一般在拉伸模中拉伸是较为困难的。特别如图1所示零件,在每瓣梅花R上还有10°的斜度,形成一个梅花锥体,这就更难成型了。难度在什么地方呢?从模具设计角度来讲,主要有两个问题不易解决:1.怎样准确地计算出工件的展开料尺寸;2.能否一次冲压成型。现对这两个问题的探讨介绍如下。一、展开料的计算由于零件形状较为复杂,它既不是锥体形状,又不是圆筒形状。所以在现有的手册中查不到现成的计算公
Plum petal-shaped box, the tensile mold is generally more difficult to stretch. In particular, the part shown in Figure 1 has a 10 ° pitch on each plum R, forming a plum cone that is more difficult to mold. Where is the difficulty? From the mold design point of view, there are two main problems not easily solved: 1. How to accurately calculate the size of the workpiece material; 2. Can a stamping. The discussion on these two issues is as follows. First, the expansion of the material calculation As part shape is more complicated, it is neither a cone shape, nor a cylindrical shape. So in the existing manual can not find ready-made calculator