一 制定轴瓦毛坯尺寸的依据 轴瓦在冲压成形过程中,工作上所受的力很难能均匀一致,因而,不同部位的变形,必然不尽相同。工件成形以后,其变形曲线展开便呈图1所示的形状,中间部分低垂,而两端翘起,说明工件普遍地增厚展宽。 A formula for the development of bearing blank roughing Bush in the stamping process, the work of the force is difficult to be uniform, therefore, the deformation of different parts, inevitably vary. After the workpiece is formed, the deformation curve is unfolded in the shape as shown in FIG. 1, the middle part is drooping, and the two ends are tilted, which shows that the workpiece generally thickens and widens.