前言: 复杂型面延伸件,其复杂因素包括两个方面,一是具有外围复杂形状,二是具有复杂端面(或底面)形状,这类延伸件一般都包含着延伸和压型两种工艺内容,因此在冷冲压件中属工艺难度大的一种。 这类模具的设计,一方面要充分考虑到变形的不利条件,另一方面还必须考虑制模的工艺性,否则,冷冲压工序无法进行,或者模具制造成本高经济效果差。 Preface: The complex surface extension, the complexity of the factors include two aspects, one with a complex shape of the periphery, the second is a complex end (or bottom) shape, such extensions generally contain two kinds of extension and pressure process content , So in the cold stamping process is a difficult process. Such mold design, on the one hand to fully take into account the adverse conditions of deformation, on the other hand also must consider the molding processability, or cold stamping process can not be carried out, or high cost of mold manufacturing economic poor.