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盒形件——各种高度的直壁方形盒与矩形盒的冲压变形,和直壁圆筒形零件的冲压变形的性质基本上是一样的,其变形区都是在径向拉应力与切向压应力的作用下产生拉深变形,而且也存在着变形区所需的拉应力与传力区的承载能力之间的关系问题。但是,由于在这两种零件的冲压变形之间也存在着很大的差别,因而使许多实际问题,如工艺设计,工艺参数及其确定、模具设计等
Box-shaped pieces - Various height of the rectangular box and rectangular box rectangular box stamping deformation, and cylindrical wall parts of the nature of stamping deformation is basically the same, the deformation zone are in the radial tensile stress and shear To the role of compressive stress generated deep drawing deformation, but also there is the deformation zone required tensile stress and force carrying capacity of the relationship between the problem. However, since there is also a large difference between the two parts of the stamping deformation, so many practical issues, such as process design, process parameters and their determination, mold design, etc.