Detailed finite element simulations in conjunction with experimental analysis of cold pilger processing were carried out to investigate the deformation behavior of an AISI321 austenitic stainless steel. The effects of process parameters such as feed rate and turn angle on damage buildup were also evaluated. By considering compressive stresses, a new revised Latham–Cockcraft damage factor was obtained as an indicator value for the determination of the optimum conditions. It was found that the radial and hoop strains in all friction conditions were compressive, while the axial strains were observed to be tensile. The amount of strain was also higher on the outside of the tube, as compared to the inner one. By considering fatigue cycles of a tube element during the process, the feed rate of 8 mm, turn angle of 60° and the lowest coefficient of friction with the minimum damage value were determined as an optimum condition.

结合冷皮尔格尔加工的实验分析，进行了详细的有限元模拟，以研究AISI321奥氏体不锈钢的变形行为。还评估了加工参数（例如进给速度和转弯角度）对损伤累积的影响。通过考虑压应力，获得了新的修订的Latham-Cockcraft损伤因子，作为确定最佳条件的指标值。结果发现，在所有摩擦条件下，径向和环向应变都是压缩性的，而轴向应变是拉伸性的。与内部相比，管子外侧的应变量也更高。考虑到管件在加工过程中的疲劳周期，进给速度为8 mm，