在作者过去的工作和有关文献资料的基础上,本文提出了一种平面应变条件下粘塑性板材气压成形过程的一般分析方法。这种方法可以模拟压力恒定的过程,也可确定保证成形过程中应变速率恒定的最佳加压规律。在所提出的方法中引入了相对压力I)”的概念,使所得结果具有普遍意义。本文所提供的研究结果对实施有关工艺有指导意义。 Based on the author’s previous work and relevant literature, this paper presents a general analysis method of the pressure forming process of viscoplastic sheets under the condition of plane strain. This method can simulate the process of constant pressure, but also determine the best pressure law to ensure constant strain rate during forming. In the proposed method, the concept of relative pressure (I) "is introduced to make the results universal, and the results provided in this paper are instructive for the implementation of the process.