众所周知,金属板料折弯以后,板件截面杭弯惯性矩会大大增加,因此在金属薄板制品中经常采用折弯工艺。但是折弯件的截面形状与尺寸往往要受折弯机上、下楔形状与尺寸的限制。为了保证折弯时不发生工件与模具的干涉观象,设计折弯件时,必须首先确定其合理的断面形状及相应的尺寸。 As we all know, sheet metal bending after bending moment of inertia of the plate section will be greatly increased, so often used in sheet metal bending process. However, the cross-sectional shape and size of the bending parts are often limited by the shapes and sizes of the upper and lower wedges of the bending machine. In order to ensure the bending does not happen when the interference between the workpiece and the mold, the design of bending parts, we must first determine the reasonable shape and the corresponding section size.