大型H型钢矫直规程对矫后残余应力的影响分析  

The Impact Analysis of Straightening Procedure for the Residual Stress of the Large H-Beam After Straightening

作　　者：姜亦祥[1] 李银平 曹媛[2] JIANG Yi-xiang;LI Yin-ping;CAO Yuan(The Linyi Career Academy of Institute of Mechanical and Electrical Engineering,Shandong Linyi 276000,China;The Inner Mongolia University of Science and Technology Institute of Mechanical Engineering,Inner Mongolia Baotou 014010,China)

机构地区：[1]临沂职业学院机电工程学院,山东临沂276000 [2]内蒙古科技大学机械工程学院,内蒙古包头014010

出　　处：《机械设计与制造》2018年第11期128-130,134,共4页Machinery Design & Manufacture

基　　金：内蒙古自治区自然科学基金项目(2013MS0717)

摘　　要：通过现场数据采集和实验研究,建立了规格为HN1000X300的最大型H型钢九辊平行辊矫直实体模型和有限元模型,把模型导入Workbench LS-DYNA显示动力学软件模块中,进行材料参数、网格划分、初始条件及边界条件设置并计算,成功的完成了大型H型钢HN1000x300在现场生产矫直规程及不同矫直规程下进行的矫直过程数值模拟,对各矫直规程下的矫后残余应力大小和分布规律统计对比分析,得出矫后残余应力值最小且分布状态合理的最佳矫直规程,最佳矫直规程的设定对提高矫直质量和生产率具有十分重要的意义。Through the field data collection and experimental research,the model of the large H-beam HN1000X300 nine roll parallel roll straightening solid model and the finite element model are established.The model is imported into the Workbench LS-DYNA display software module.Material parameters,mesh partition,Initial conditions and boundary conditions are set up and calculated.The numerical simulation of the straightening process of large H steel HN1000x300 in the field production and the straightening process of different leveling procedure are accomplished,The statistical analysis of the residual stress and the distribution of the residual stress in the straightening procedure,The optimum straightening rules for the minimum residual stress and reasonable distribution state are obtained,The setting of the optimal straightening procedure is very important for improving the quality and productivity of the straightening.

关 键 词：大型H型钢 矫直 矫直规程 残余应力 影响分析 

分 类 号：TH16[机械工程—机械制造及自动化] TG333.2[金属学及工艺—金属压力加工]