轧辊转速对AZ31环件轧制工艺的影响规律研究  

Effect of roll speed on radial-axial rolling process of AZ31 ring

作　　者：罗晓东[1] 柳浩[1] 阳辉[1] 郑先兴[1] 

机构地区：[1]重庆科技学院冶金与材料工程学院,重庆401331

出　　处：《兵器材料科学与工程》2015年第6期61-64,共4页Ordnance Material Science and Engineering

摘　　要：基于ABAQUS/Explicit平台建立AZ31镁合金环件径轴向热轧的三维弹塑性热力耦合有限元模型,分析轧辊转速对成形环件的应变和温度分布不均匀性以及轧制力能参数的影响规律。结果表明:随着轧辊转速的增加,等效应变分布愈来愈不均匀,温度分布由不均匀过渡到均匀;同时轧制力、轧制力矩逐渐减小。Based on the ABAQUS/Explicit code,a 3D elastic-plastic and coupled thermo-mechanical FE model of hot radial-axial rolling of AZ31 magnesium alloy was proposed to analyze the influence of roll speed on the non-uniform distribution of strain and temperature,rolling force and power parameters. The results show that when roll speed increases,the strain distribution of the rolled ring becomes less homogeneous,and the temperature distribution becomes less homogeneous first,and then more homogeneous. The rolling force and rolling moment gradually descend with the increase of roll speed.

关 键 词：轧辊转速 AZ31镁合金 有限元法 径轴向轧制 

分 类 号：TG339[金属学及工艺—金属压力加工]