近两年来,为解决新产品试制问题,我们成功地采用通用容框聚氨酯冲裁模冲制0.3mm以下的调整垫片(图1),取得了显著效果。现将模具结构(图2)介绍如下, 上模8装在冲床的冲头上,用以产生冲裁力,由于所需压力较大,故选用较大吨位的冲床(摩擦压力机、液压机均可)。通用容框1材料为30CrMnSiA,壁厚35～40mm, In the past two years, in order to solve the problem of trial production of new products, we succeeded in adopting a universal frame polyurethane blanking die to make the adjustment washer of 0.3mm or less (Figure 1) and achieved remarkable results. Now the mold structure (Figure 2) is introduced as follows, the upper die 8 installed in the punch punch to produce blanking force, due to the larger pressure required, so use a larger tonnage punch (friction press, hydraulic machine are can). Universal frame material 1 is 30CrMnSiA, wall thickness 35 ~ 40mm,