Thin metal plate flange anisotropy testing method

The invention discloses a thin metal plate flange anisotropy testing method. The method comprises the following steps: acquiring a disc-shaped sample; preparing the disc-shaped sample into a cap-shaped sample through a deep drawing method; detecting the maximum outer diameter and the minimum outer diameter of the brim of the cap-shaped sample; and judging the anisotropy of the sample according to the maximum outer diameter and the minimum outer diameter of the brim of the cap-shaped sample. According to the invention, the blank pressing part of the sample is prevented from bearing larger blank pressing force and the lug is prevented from being flattened, the measurement error is reduced, and the measurement accuracy is improved. 本申请公开了一种薄金属板凸缘各向异性测试方法，包括：获取圆片状的试样；将圆片状的试样通过深冲拉深的方法制备成帽状试样；检测帽状试样帽沿的最大外径和最小外径；根据帽状试样帽沿的最大外径和最小外径，判断试样各向异性。本申请避免了试样压边部位承受较大压边力和制耳被压扁，降低了测量误差，提高了测量准确性。