运用DEFORM-3D有限元软件,对旋压无铆铆接过程进行数值模拟,并和传统无铆铆接技术对比分析,通过数值模拟得到两者的成形载荷曲线以及铆接成形截面和应力分布规律;模拟研究结果表明旋压无铆铆接载荷约为传统无铆铆接载荷的50%;旋压无铆铆接互锁厚度大于传统无铆铆接互锁厚度。 The DEFORM-3D finite element software was used to simulate the process of riveting without riveting, and compared with the traditional riveting without riveting, the forming load curve and the riveting forming section and stress distribution were obtained by numerical simulation. The simulation study The results show that the riveting load without spinning riveting is about 50% of the riveting load without riveting. The interlocking riveting without riveting with spinning is thicker than the riveting riveting without riveting.