| AZ91D镁合金棒材挤压过程的数值模拟研究 |
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| 引用本文： | 陈永哲,柴跃生,孙钢,陈睿,周俊琪,张敏刚.AZ91D镁合金棒材挤压过程的数值模拟研究[J].金属成形工艺,2011(3):10-14. |
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| 作者姓名： | 陈永哲 柴跃生 孙钢 陈睿 周俊琪 张敏刚 |
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| 作者单位： | 太原科技大学材料科学与工程学院山西省镁及镁合金工程技术研究中心,太原030024 |
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| 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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| 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。
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| 关 键 词： | 镁合金 挤压 数值模拟 |
Numerical Simulation Study of the Extrusion Process of AZ91D Magnesium Alloy Bar |
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| CHEN Yong-zhe,CHAI Yue-sheng,SUN Gang,CHEN Rui,ZHOU Jun-qi,ZHANG Min-gang.Numerical Simulation Study of the Extrusion Process of AZ91D Magnesium Alloy Bar[J].Metal Forming Technology,2011(3):10-14. |
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| Authors: | CHEN Yong-zhe CHAI Yue-sheng SUN Gang CHEN Rui ZHOU Jun-qi ZHANG Min-gang |
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| Affiliation: | (Shanxi Provincial Engineering and Technology Research Center on Mg and Mg Alloy, School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China) |
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| Abstract: | 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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| Keywords: | magnesium alloy extrusion numerical simulation |
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