芯辊直径对AZ31镁合金热轧环件的影响

罗晓东; 柳浩; 戴庆伟; 许文林; 郑先兴

doi:10.15980/j.tzzz.2015.09.007

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芯辊直径对AZ31镁合金热轧环件的影响
Effect of Idle Roll Diameter on Hot Radial-Axial Ring of AZ31 Magnesium Alloy
2015年35卷第9期页码：920-922
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.09.007

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[1]罗晓东,柳浩,戴庆伟,许文林,郑先兴.芯辊直径对AZ31镁合金热轧环件的影响[J].特种铸造及有色合金,2015,35(09):920-922.

Luo Xiaodong, Liu Hao, Dai Qingwei, et al. Effect of Idle Roll Diameter on Hot Radial-Axial Ring of AZ31 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(9):920-922.
[1]罗晓东,柳浩,戴庆伟,许文林,郑先兴.芯辊直径对AZ31镁合金热轧环件的影响[J].特种铸造及有色合金,2015,35(09):920-922. DOI： 10.15980/j.tzzz.2015.09.007.

Luo Xiaodong, Liu Hao, Dai Qingwei, et al. Effect of Idle Roll Diameter on Hot Radial-Axial Ring of AZ31 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(9):920-922. DOI： 10.15980/j.tzzz.2015.09.007.

摘要

基于ABAQUS/Explicit平台建立了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

分析了芯辊直径对成形环件的应变和温度分布不均匀性以及轧制性能的影响。结果表明

随着芯辊直径的增加

成形环件的等效应变和温度分布越来越均匀;同时轧制力和径向轧制力矩逐渐增大

轴向轧制力矩逐渐减小。

Abstract

Based on the ABAQUS/Explicit software

a 3Delastic-plastic coupled thermo-mechanical FE（finite element）model of hot radial-axial rolling of AZ31 magnesium alloy was established to analyze influence of idle roll diameter on the non-uniform distribution of strain and temperature

rolling force and power parameters.The results show that with idle roll diameter increase

the strain distribution and the temperature distribution of the rolled ring become more homogeneous

meanwhile

the rolling force and rolling moment of radial direction are gradually increased with the increase at idle roll diameter

however

rolling moment at axial direction is decreased gradually.