| 剪挤成形工艺分析及数值模拟研究 |
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| 引用本文： | 郭安庶,庄新村,赵震,董湘怀.剪挤成形工艺分析及数值模拟研究[J].锻压技术,2011,36(3):131-135. |
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| 作者姓名： | 郭安庶 庄新村 赵震 董湘怀 |
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| 作者单位： | 上海交通大学塑性成形工程系; |
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| 基金项目： | “高档数控机床与基础制造装备”科技重大专项资助项目(2009ZX04004-091) |
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| 摘 要： | 为了研究不同剪挤成形工艺参数对成形零件质量的影响,本文使用Deform 2D有限元软件建立二维轴对称模型,采用Ludwik硬化流动应力模型和能够同时反映空穴损伤发展和空穴形状变化对损伤程度影响的韧性损伤模型,进行剪挤成形弹塑性有限元分析.分析归纳出板厚、凸凹模间隙、凸模半径、压边力和反顶力等工艺参数对剪挤成形质量和成形...
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| 关 键 词： | 剪挤成形 有限元方法 韧性断裂准则 |
Investigation of shearing extrusion forming process using finite element method |
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| GUO An-shu,ZHUANG Xin-cun,ZHAO Zhen,DONG Xiang-huai.Investigation of shearing extrusion forming process using finite element method[J].Forging & Stamping Technology,2011,36(3):131-135. |
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| Authors: | GUO An-shu ZHUANG Xin-cun ZHAO Zhen DONG Xiang-huai |
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| Affiliation: | GUO An-shu,ZHUANG Xin-cun,ZHAO Zhen,DONG Xiang-huai(Department of Plasticity Technology,Shanghai Jiaotong University,Shanghai 200030,China) |
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| Abstract: | In order to research how different sheet metal extrusion process parameters affect workpiece quality during sheet metal extrusion process,a two-dimensional axisymmetric model built based on Deform 2D finite element software was used.Furthermore,Ludwik hardening flow stress model and a ductile fracture criterion which indicated the evolution of void and the effect of damage caused by the void shape changes were used to analyze large deformation elasto-plasticity finite element analysis.Based on these analyse... |
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| Keywords: | shear extrusion forming finite element method ductile fracture criterion |
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