HFW焊管排辊成型预成型段有限元仿真分析  

Analysis on Pre-Forming Step of HFW Cage Roll-Forming with FEM Simulation

作　　者：胡盛德[1] 张静[1] 刘勇[1] 皮大光[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《机械设计与制造》2014年第5期198-200,204,共4页Machinery Design & Manufacture

基　　金：钢铁冶金及资源利用省部共建教育部重点实验室开放基金项目(FMRU200903)

摘　　要：排辊成形已经被广泛的应用于钢管生产中,直缝焊管排辊成形过程涉及明显的非线性,为了更好地了解板带的排辊成形过程,针对Φ508mm焊管排辊成形机组的预成形建立了弹塑性大变形有限元模形,利用显式动力算法进行了仿真计算,分别得到了预成形段板带的等效塑性应变分布和几和变形,并和实际测量进行比较取得很好的吻合,验证了模拟的准确性。研究表明:排辊成形预成形阶段的较大塑性变形发生在带钢中心和与排辊接触的带钢边缘。Cage roll-forming has been widely used in pipe production,considering the complexity of cage roll-forming process of high frequency welding （HFW） pipes,which involves large deflection and nonlinearity,in order to understand the deformation process better,a large deformation elastic-plastic finite element model of the pre-forming section of Φ508mm welded pipe cage forming mill was established and simulated through adopting dynamic explicit algorithm.The distribution of effective plastic strain and the deformed geometry of the strip at the pre-forming section were obtained,and the accuracy of simulation was validated through the measurements.The simulation results show that at the pre-forming section the biggest effective plastic strain occurs at the center of strip and the strip edge.

关 键 词：排辊成形 预成形 加工硬化 开口度 等效塑性应变 

分 类 号：TH16[机械工程—机械制造及自动化] TG376.9[金属学及工艺—金属压力加工]