图1是无线电器件中广泛使用的接插件外壳,各种型号形状一致,只是尺寸大小各异,具有一定的通用性。 此外壳零件是属于带凸缘的矩形拉深件,在拉深过程中,由于其应力、应变是不等的,直边是弯曲变形,而四角为拉深变形,在四角圆弧和直线接近的部位,则属于两者兼有的变形过程,因此,它比圆筒形零 Figure 1 is a widely used in the radio device connector housing, the various models of the same shape, but different sizes, with a certain versatility. The shell part belongs to a rectangular deep drawing part with a flange. During the drawing process, the strain is unequal due to its stress, the straight edge is the bending deformation, and the four corners are the drawing deformation. When the four corners arc and the line are close Of the site, it belongs to both the deformation process, therefore, it is cylindrical than zero