在实验研究结果基础上,采用软件MSC.Marc对90°碳钢弯管热推制成形过程进行了数值模拟,研究了成形过程中弯管轴向典型特征边及环向典型特征层的应变分布,并对弯曲成形过程中管壁壁厚变化进行了分析。数值模拟结果与实际生产要求相符,能为研究热推弯管成形机理起到积极作用。 Based on the experimental results, the software MSC.Marc was used to simulate the hot forming process of 90 ° carbon steel elbow. The strain distribution of typical axial and axial characteristic strata of the elbow during the forming process was studied The changes of the wall thickness in the bending process were also analyzed. The numerical simulation results are consistent with the actual production requirements, which can play an active role in studying the forming mechanism of hot-rolled elbows.