以具有中心开孔药型罩的扁平结构为研究对象，进行自锻破片成型试验研究，以试验结果为依据，得出影响扁平结构自锻破片成型性能的重要参数取值规律。同时采用非线性动态有限元程序，对此类结构自锻破片形成过程进行数值模拟，搞清了药型罩中心孔对自锻破片成型过程的影响机理。 Based on the test results, a flat structure with a center-opening drug-type cover was taken as the research object. The forming parameters of the self-forging fragment were studied based on the experimental results. At the same time, nonlinear dynamic finite element program was used to simulate the formation of such a structure from the forging fragments, and the influence mechanism of the center hole of the shell on the forming process of the self-forging fragments was clarified.