| TB10钛合金筒体反挤压成形的有限元模拟 |
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| 引用本文： | 程奔,叶文君,惠松骁.TB10钛合金筒体反挤压成形的有限元模拟[J].锻压技术,2009,34(5). |
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| 作者姓名： | 程奔 叶文君 惠松骁 |
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| 作者单位： | 北京有色金属研究总院,有色金属材料制备加工国家重点实验室,北京,100088 |
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| 摘 要： | 通过热模拟实验得到TB10钛合金的流动应力-应变曲线,应用DEFORM-3D软件建立材料模型.基于刚塑性有限元法,对TB10钛合金筒体反挤压过程进行数值模拟.分析了挤压过程的载荷-行程曲线,以及坯料内部的温度、速度、应力、应变等的分布,并对模拟过程中的误差来源做了分析.研究表明,在摩擦因子较小(m=0.1)的情况下,挤压载荷较为稳定,筒壁处金属流动速度均匀,但局部变形不均和应力集中可能在表面形成裂纹.
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| 关 键 词： | TB10钛合金 反挤压 刚塑性有限元 |
FEM simulation of backward extrusion process of TB10 titanium alloy cylinder |
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| CHENG Ben,YE Wen-jun,HUI Song-xiao.FEM simulation of backward extrusion process of TB10 titanium alloy cylinder[J].Forging & Stamping Technology,2009,34(5). |
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| Authors: | CHENG Ben YE Wen-jun HUI Song-xiao |
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| Affiliation: | CHENG Ben,YE Wen-jun,HUI Song-xiao(State Key Laboratory for Fabrication and Processing of Non-ferrous Metals,General Research Institute for Non-ferrous Metals,Beijing 100088,China) |
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| Abstract: | The flow stress-strain curves of TB10 titanium alloy were obtained using a hot simulated method,and the material model was built by the software DEFORM-3D.Based on rigid-plastic finite element method,backward extrusion process of TB10 titanium alloy cylinder was simulated numerically.The load-stroke curve of extrusion process and the distribution of temperature,velocity,stress and strain of the billet were analyzed.The error sources during simulation were also analyzed.The results show that the extrusion lo... |
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| Keywords: | TB10 titanium alloy backward extrusion rigid-plastic finite element |
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