重轨万能轧制过程金属三维流动的复合分析法  

Multiplex analytical method for metal three-dimensional flow of heavy rail rolling by universal mill

作　　者：郭煜敬[1] 谢志江[1] 王彦忠[2] 陶功明[2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]攀枝花钢铁集团公司轨梁厂,四川攀枝花617062

出　　处：《重庆大学学报（自然科学版）》2010年第1期31-35,66,共6页Journal of Chongqing University

基　　金：国家重大科技专项基金资助项目(JW2026017);国家'十五'科技攻关资助项目(2001BA957C)

摘　　要：利用MSC.Marc大变形有限元仿真软件进行轧制过程数值模拟;通过X、Y方向位移云图切片技术分析金属流动规律,并用横向切片轮廓节点的'时间位移'图对变形过程进行细化分析,获得轧制后钢轨的轨高、头宽、腰厚及底宽等钢轨断面关键尺寸信息;通过Z方向位移分析优化延伸率的分配。结果表明:用该方法对依靠经验设计的重轨万能轧制孔型进行优化,缩短了产品孔型开发时间,节约了孔型开发成本,提高了产品轧制精度。The heavy-rail rolling process is simulated with MSC. Marc software. The flowing law of metal by slicing the nephogram of X, Y direction displacement is analyzed. Then the course of deforming by ＂timedisplacement＂ chart of nodes on the outline of horizontal slice is particularly studied. The distribution of the coefficient of elongation is optimized through analyzing Z direction displacement. The result shows that utilizing this method to optimize the universal rolling pass which designed by experience can save the development time and the cost, and improve the quality of heavy rail.

关 键 词：钢轨 三维流动 云图 延伸率 

分 类 号：TG335.4[金属学及工艺—金属压力加工]