张力减径过程管形预报的有限元模型  

FEA model for tube shape prediction in stretch reducing rolling process

作　　者：于辉[1] 汪飞雪[1] 黄华贵[1] 徐海亮[1] 杜凤山[1] 

机构地区：[1]燕山大学 机械工程学院,河北秦皇岛066004

出　　处：《燕山大学学报》2008年第3期189-192,共4页Journal of Yanshan University

基　　金：国家自然科学基金(50344036)

摘　　要：根据张力减径机的孔型特点,建立了全系统三维弹塑性有限元分析模型,对18机架张力减径过程进行数值模拟,通过研究横向壁厚分布,得出减径钢管产品沿圆周方向的壁厚分布不均,产生内多边形缺陷,并将模拟结果与实测结果进行对比,验证了所建立模型的准确性。本模型可以对钢管减径进行产品质量预测,为分析产品缺陷、指导工艺设计提供了依据。Based on the characteristic of stretch reducing mill, the whole systematic 3D elasto-plastic finite element analysis has been established to simulate the deformation process of seamless tube on the 18-stand stretch reducing mill. The transverse wall thickness of stretch-reduced tube product is unevenness to result in the formation of bore polygon by researching its distribution. The analysis was verified by comparing finite element analysis results with experiment measurements. The model can be used to predict the product quality for tube stretch reducing rolling process and the simulation results can be used for analyzing produce＇flaws and instructing technological design.

关 键 词：钢管 有限元 张力减径 横向壁厚 

分 类 号：TG335.7[金属学及工艺—金属压力加工]