为了解决分段多点成形过程中的技术难题,利用数值模拟软件对其成形过程进行数值模拟.以显式算法模拟加载成形过程,隐式算法模拟卸载回弹过程,从而实现分段多点成形的数值模拟.采用非均匀有理B(NURBS)样条曲线设计过渡区形状,探讨了过渡区大小对成形品质的影响.结果表明,在合理设计过渡区的情况下,分段成形品质好于一次成形. In order to solve the technical problems in the process of multi-point forming, the numerical simulation software is used to simulate the forming process, the loading process is simulated by an explicit algorithm, and the unloading rebound process is simulated by an implicit algorithm to realize the multi-point forming The shape of the transition zone was designed by NURBS spline curve and the influence of the transition zone size on the forming quality was discussed.The results showed that the segment forming quality was better than that of the transition zone Forming.