A welded stainless steel tube is a component used in several industrial applications. Its manufacturing process needs to follow specific requirements based on reference standards. This calls for a predictive analysis able to face some critical issues affecting the forming process. In this paper, a model was adopted taking into account the tube geometrical parameters that was able to describe the deformation process and define the best industrial practices. In this paper, the effect of different process parameters and geometric constraints on ferritic stainless steel pipe deformation is studied by finite element method (FEM) simulations. The model sensitivity to the input parameters is reported in terms of stress and tube thinning. The feasibility of the simulated process is assessed through the comparison of Forming Limit Diagrams. The comparison between the calculated and experimental results proved this approach to be a useful tool in order to predict and properly design industrial deformation processes.

中文翻译：

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441铁素体不锈钢管塑性变形的成形参数分析

焊接不锈钢管是用于多种工业应用的组件。其制造过程需要遵循基于参考标准的特定要求。这就要求进行预测分析，以应对影响成形过程的一些关键问题。在本文中，考虑到管的几何参数，采用了能够描述变形过程并定义最佳工业实践的模型。本文通过有限元模拟研究了不同工艺参数和几何约束条件对铁素体不锈钢管变形的影响。该模型对输入参数的敏感度以应力和管道细化的形式报告。通过比较成形极限图评估了模拟过程的可行性。