基于DEFORM-3D的哈氏合金基带多道次轧制仿真研究  

Simulation study on multi-pass rolling of Hastelloy substrate based on DEFORM-3D

作　　者：朱洪锋 付海英 李鹏远 罗蓉蓉 张腾 左佳欣 胡新波 杨建雷[2] 王勇 庞宗旭 ZHU Hong-feng;FU Hai-ying;LI Peng-yuan;LUO Rong-rong;ZHANG Teng;ZUO Jia-xin;HU Xin-bo;YANG Jian-lei;WANG Yong;PANG Zong-xu(Center for Fusion Science,Southwestern Institute of Physics,Chengdu 610225,China;School of Materials Science and Engineering,Harbin Institute of Technology(Weihai),Weihai 264209,China;Iron&Steel Research Institutes of Ansteel Group Corporation,Anshan 114009,China)

机构地区：[1]核工业西南物理研究院聚变堆设计中心,四川成都610225 [2]哈尔滨工业大学(威海)材料科学与工程学院,山东威海264209 [3]鞍钢集团钢铁研究院,辽宁鞍山114009

出　　处：《塑性工程学报》2025年第1期100-111,共12页Journal of Plasticity Engineering

基　　金：四川省科技厅面上项目(2023NSFSC0412);核工业西南物理研究院西物创新项目(202301XWCX005;202103XWCXRC005)。

摘　　要：使用DEFORM-3D三维模拟软件对哈氏合金基带的粗轧过程进行多道次仿真,依托流变应力的计算,建立了材料物性模型和仿真模型,并利用前几道次的粗轧实验验证了模型的准确性。通过仿真实验探索了压下率、轧辊形状和摩擦因数对轧制流程的影响。结果表明,随着道次压下率的升高,平均轧制力升高,30%道次压下率的轧制流程带来基带应变不均匀性是表面裂纹产生的重要原因,成功预测了后续轧制实验中带材表面产生的裂纹,实际生产应尽量选用20%及以下的压下率;在该应用条件中,新设计的凹面轧辊流程能有效减小轧制力,降低设备要求,提高轧制安全性,实验中部分流程采用凹面轧辊有效地将侧面裂纹的出现延迟到了第8道次;好的润滑条件能减小摩擦,模拟结果表明摩擦因数越小,基带轧制的均匀性越好,但会增加工序的时间,也会提高材料进给的难度。研究结果优化了实际轧制流程,降低了基带轧制过程中的表面及边部裂纹等缺陷。The multi-pass rough rolling process of Hastelloy substrate was simulated by using the DEFORM-3D simulation software.Relying on the calculation of flow stress,the material property model and simulation model were established,and the accuracy of the model was verified by the rough rolling experiments of the first several passes.The effects of the reduction rate,roll shape and friction factor on the rolling process were investigated by simulation experiments.The results show that with the increase of pass reduction rate,the average rolling force increases.The non-uniformity of substrate strain caused by the rolling process with pass reduction rate of 30% is an important cause of surface cracks.The cracks generated on the surface of the substrate in subsequent rolling experiments are successfully predicted.In actual production,the reduction rate of 20% or less should be selected as much as possible.In this application condition,the newly designed concave roller process can effectively reduce rolling force,reduce equipment requirements,and improve rolling safety.In part of experiment process,concave rollers were used to effectively delay the occurrence of side cracks until the eighth pass.Good lubrication conditions can reduce friction,simulation results show that the smaller the friction factor,the better the uniformity of the substrate rolling.However,it increases the process time and the difficulty of material feeding.The research results optimize the actual rolling process,and reduce defects such as surface and edge cracks of the substrate during rolling process.

关 键 词：哈氏合金 有限元模拟 多道次轧制 压下率 轧辊形状 摩擦因数 

分 类 号：TG335.56[金属学及工艺—金属压力加工]