反复锻压剧烈塑性变形的有限元分析*

doi:10.11896/j.issn.1005-023X.2017.08.029

CLDB

2017, Vol. 31

Issue (8): 145-148 https://doi.org/10.11896/j.issn.1005-023X.2017.08.029

计算模拟

反复锻压剧烈塑性变形的有限元分析^*

郭炜¹, 王德¹, 付远¹, 陆德平¹, 刘克明², 王渠东³, 张利³

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

Finite Element Analysis of Repeated Forging Severe Plastic Deformation

GUO Wei¹, WANG De¹, FU Yuan¹, LU Deping¹, LIU Keming², WANG Qudong³, ZHANG Li³

1 Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330096;
2 Jiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099;
3 School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240

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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

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.

Key words: repeated forging severe plastic deformation simulation finite element analysis

出版日期: 2017-04-25 发布日期: 2018-05-02

ZTFLH:

TG306

基金资助: 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)

作者简介: 郭炜:男,1981年生,博士,副研究员,主要研究方向为金属剧烈塑性变形 E-mail:guowei053@163.com

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]. CLDB, 2017, 31(8): 145-148.
GUO Wei, WANG De, FU Yuan, LU Deping, LIU Keming, WANG Qudong, ZHANG Li. Finite Element Analysis of Repeated Forging Severe Plastic Deformation. Materials Reports, 2017, 31(8): 145-148.

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http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.08.029 或 http://www.mater-rep.com/CN/Y2017/V31/I8/145

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