基于Johnson Cook模型的Q235角钢矫直仿真  

Simulation of Q235 Angle Steel Straightening based on Johnson⁃Cook Model

作　　者：王爽 徐志坤[1] 石海军[1] 曹明辉[1] 刘晓寒 Wang Shuang;Xu Zhikun;Shi Haijun;Cao Minghui;Liu Xiaohan(Technical Research Institute,MCC Huatian Nanjing Engineering&Technology Corporation Limited,Nanjing 210019)

机构地区：[1]中冶华天南京工程技术有限公司技术研究院,江苏南京210019

出　　处：《冶金设备》2024年第3期89-92,共4页Metallurgical Equipment

基　　金：安徽省科技重大专项(012213616032)。

摘　　要：以某公司研发的角钢矫直机为研究对象,建立角钢矫直三维模型。根据等效理论方法,对Q235角钢矫直压下量进行理论计算。以Jonson Cook模型为基础,构建了角钢连续矫直有限元模型,对矫直过程中矫直辊矫直力进行分析,同时分析各矫直辊位置角钢截面应力的变化以及设计压下规程下角钢矫直后的平直度。结果表明:各矫直辊矫直力呈现先增大再减小;在连续反弯矫直过程会导致矫直件加工硬化,各矫直辊位置的角钢截面应力呈现逐渐增大。所得结论为后续优化角钢矫直工艺进一步分析提供参考。Taking the angle steel straightening machine developed by a certain company as the research object,establish a three⁃dimensional model of angle steel straightening.According to the theoretical equivalent method,the theoretical calculation of the straightening reduction of diagonal Q235 steel is carried out.Based on the Jonson Cook model,a finite element model for continuous straightening of angle steel was constructed to analyze the straightening force of the straightening roller during the straightening process.At the same time,the changes in cross⁃sectional stress of the angle steel at each straightening roller position and the flatness of the angle steel after straightening under the design reduction regulations were analyzed.The results show that the straightening force of each straightening roller increases first and then decreases;During the continuous reverse bending straightening process,the straightening piece will undergo work hardening,and the cross⁃sectional stress of the angle steel at each straightening roller position will gradually increase.The conclusions obtained provide a reference for further analysis of optimizing the angle steel straightening process in the future.

关 键 词：角钢 Johnson-Cook模型 有限元仿真 矫直力 

分 类 号：TG333.2[金属学及工艺—金属压力加工]