| 反复锻压剧烈塑性变形的有限元分析 |
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| 引用本文： | 郭炜,王德,付远,陆德平,刘克明,王渠东,张利. 反复锻压剧烈塑性变形的有限元分析[J]. 材料导报, 2017, 31(8): 145-148. DOI: 10.11896/j.issn.1005-023X.2017.08.029 |
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| 作者姓名： | 郭炜 王德 付远 陆德平 刘克明 王渠东 张利 |
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| 作者单位： | 1. 江西省科学院应用物理研究所,南昌,330096;2. 南昌工程学院江西省精密驱动与控制重点实验室,南昌,330099;3. 上海交通大学材料科学与工程学院,上海,200240 |
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| 基金项目： | 国家自然科学基金(51404151;51561010;51461018;51374145);江西省自然科学基金重大项目(20144ACB20013);江西省科学院科研开发专项基金博士项目(2015-YYB-11);江西省科学院协同创新专项普惠制一类项目(2015-XTPH1-11);江西省国际科技合作项目(20151BDH80006);江西省自然科学基金重点项目(20133BAB20008) |
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| 摘 要： | 采用Deform-3D有限元软件模拟了反复锻压剧烈塑性变形,分析了加工过程中试样的流动、温度、应力以及应变分布。研究发现锻压过程中各部分质点流动的速度大小和方向都不相同。随着起始锻压温度的升高,试样同一部位温升数值逐渐降低。试样内大部分区域在3个方向都承受压应力,有利于细化显微组织的剪切变形始终存在。第一道次锻压完成后试样中应变分布很不均匀,随着加工道次的增加,累积应变及其分布均匀程度都不断提高。
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| 关 键 词： | 反复锻压 剧烈塑性变形 模拟 有限元分析 |
Finite Element Analysis of Repeated Forging Severe Plastic Deformation |
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| GUO Wei,WANG De,FU Yuan,LU Deping,LIU Keming,WANG Qudong and ZHANG Li. Finite Element Analysis of Repeated Forging Severe Plastic Deformation[J]. Materials Review, 2017, 31(8): 145-148. DOI: 10.11896/j.issn.1005-023X.2017.08.029 |
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| Authors: | GUO Wei WANG De FU Yuan LU Deping LIU Keming WANG Qudong ZHANG Li |
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| Affiliation: | Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096,Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096,Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096,Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096,Jiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099,School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 and School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 |
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| Abstract: | Simulation was performed on repeated forging severe plastic deformation by "Deform-3D" finite element software.The distributions of flow, temperature, stress and strain during processing were analyzed.The results showed that the value and direction of flow velocity for each mass point were different during forging.The value of temperature rise in the same position of sample gradually decreased with the increase of initial forging temperature.Most area of the sample suffered compressive stress in three directions, and shear deformation which was beneficial to refine microstructure always existed.The strain distribution was inhomogeneous in the whole sample after the first pass of forging, and both accumulated strain and strain homogeneity improve as passes number of processing increased. |
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| Keywords: | repeated forging severe plastic deformation simulation finite element analysis |
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