采用CEC方法降低管端增厚的有限元模拟

Finite element simulation for reducing the wall thickness of head/tail end of tube by adopting the method of CEC

针对无缝钢管在微张力减径机组轧制后会在头尾两端产生增厚现象,建立了2级CEC控制模型。采用大型通用有限元分析软件DEFORM对无缝钢管的微张力减径过程进行了数值计算。通过模拟结果分析发现,2级CEC控制模型可以有效减少成品管头尾两端的切除长度。研究结果可以为钢管生产厂家在减少管端增厚方面提供依据。

Based on the phenomenon that wall thickness of seamless steel tube would be increased after the tube was rolled by the micro tension reducing mills, a 2-stage-CEC controlling model was established. The numerical calculation of micro tension reduc- ing process of seamless steel pipe was finished with the help of large and general finite element analysis software DEFORM. The 2-stage-CEC controlling model can effectively reduce the excision length of finished tube ends. The research results are references of tube producers in the aspect of reducing the wall thickness of steel tubes.