G427A_1发动机机油盘是在双动油压机上冲压成型的。产品最大塑腔成型尺寸488×235×158mm(见图1),底部有两个阶梯型复杂的空间曲面,属小体积、高方盆形、拉延极限超标的拉深件。如用常规的模具设计方法,需多次拉深才能成型,我们选择了较理想的工艺方案,有效地控制了各曲面方向上的进料供给,使产品一次拉深成型,现将具体情况介绍如下。 G427A_1 The engine oil pan is stamped and formed on a double acting hydraulic press. The largest plastic cavity molding size 488 × 235 × 158mm (see Figure 1), the bottom of two ladder-shaped complex space surface is a small volume, high square basin, drawing the limit exceeded the drawing parts. Such as the conventional mold design method, the need for multiple deep drawing in order to shape, we have chosen a better process options, the effective control of the direction of the curved surface of the feed supply, the product of a deep drawing, the specific circumstances are introduced as follows.