陈永哲,柴跃生,孙钢,等.AZ91D镁合金棒材挤压过程的数值模拟研究[J].精密成形工程,2011,3(3):10-14.
CHEN Yong-zhe,CHAI Yue-sheng,SUN Gang,et al.Numerical Simulation Study of the Extrusion Process of AZ91D Magnesium Alloy Bar[J].Journal of Netshape Forming Engineering,2011,3(3):10-14. |
| AZ91D镁合金棒材挤压过程的数值模拟研究 |
| Numerical Simulation Study of the Extrusion Process of AZ91D Magnesium Alloy Bar |
| 投稿时间：2010-12-10 修订日期：2011-05-10 |
| DOI： |
| 中文关键词: 镁合金 挤压 数值模拟 |
| 英文关键词: magnesium alloy extrusion numerical simulation |
| 基金项目:山西省科技攻关计划项目(20090322007)；山西省科技厅国际合作项目(20091050) |
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| 中文摘要: |
| 通过Gleeble-1500D热模拟机获得AZ91D镁合金的应力应变曲线。采用刚塑性有限元法对AZ91D镁合金棒材挤压过程进行热力耦合数值模拟，分析了变形温度与挤出速度对挤压力和等效应变变化情况的影响。模拟的结果表明：在25∶1的挤压比下AZ91D镁合金的挤压温度为400 ℃，挤出速度为12.5 mm/s。 |
| 英文摘要: |
| The stress-stain curves of AZ91D magnesium alloy were gained through Gleeble-1500D simulator. The rigid plastic finite element method was used for the couple thermal-mechanical numerical simulation of the rods and bars extrusion process of AZ91D alloy. The effects of deformation temperature and extrusion velocity on the deformation force and strain-effective were discussed.The simulation results show that the extrusion temperature is 400 ℃ and the extrusion speed is 12.5 mm/s under the extrusion ratio 25∶1 of AZ91D magnesium alloy． |
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