大型筒节轧制成形热力耦合模拟和工艺分析  

Coupled thermal-mechanical simulation of heavy cylinder rolling and technology analysis

作　　者：陈素文[1,2] 刘宏民[1] 孙建亮[1] 周学凤[1] CHEN Suwen LIU Hongmin SUN Jianliang ZHOU Xuefeng(National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University, Qinhuangdao, Hebei 066004, China)

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学环境与化学工程学院,河北秦皇岛066004

出　　处：《燕山大学学报》2017年第2期116-120,共5页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(51305388);河北省自然科学基金资助项目(E2016203103);秦皇岛市科学技术研究与发展计划资助项目(201502A039);燕山大学博士基金资助项目(B946)

摘　　要：与传统自由锻相比,大型筒节轧制成形是一种先进高效的生产工艺,具有短流程、节能节材等优点。本文采用基于热模拟实验的筒节材料流变应力模型,通过有限元热力耦合数值模拟,研究了大型筒节轧制过程的金属变形和温度演变规律,分析了轧制工艺参数对金属变形的影响,为优化轧制工艺,预测和控制成形质量提供了依据。Comparing with the traditional free forging, a heavy cylinder rolling is an advanced and efficient forming technology because it has the advantages of short process, energy and material saving etc. A flow stress model of the heavy cylinder material is obtained by utilizing the thermal simulation experiment in this study.Through the coupled thermo mechanical numerical simulation of FEM, the metal deformation and the temperature variation law are investigated in the heavy cylinder rolling, and the effect of rolling process parameters on the metal deformation is analyzed. The studied results can provide the basis for optimizing the rolling technology and forming quality forecast and control.

关 键 词：大型筒节 轧制成形 热力耦合 工艺分析 

分 类 号：TG335[金属学及工艺—金属压力加工]