Finite Element Simulation on Porthole Die Extruding Process of 5005 Aluminum

CHEN Ling; DUAN Yafei; TAN Zimeng; ZENG Jianmin

doi:10.16080/j.issn1671-833x.2017.18.088

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Finite Element Simulation on Porthole Die Extruding Process of 5005 Aluminum

更新时间：2025-10-30

- Finite Element Simulation on Porthole Die Extruding Process of 5005 Aluminum
- Aeronautical Manufacturing Technology Vol. 60, Issue 18, Pages: 88-92(2017)
- 作者机构：
  
  广西大学有色金属及材料加工新技术教育部重点实验室,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2017.18.088
  CLC：
- Published：2017
- 稿件说明：
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陈　灵，段亚菲，谭自盟，曾建民. 5005 铝合金分流模挤压过程有限元模拟*[J]. 航空制造技术, 2017, 60(18): 88-92.

CHEN Ling, DUAN Yafei, TAN Zimeng, ZENG Jianmin. Finite Element Simulation on Porthole Die Extruding Process of 5005 Aluminum. Aeronautical Manufacturing Technology, 2017, 60(18): 88-92.
陈　灵，段亚菲，谭自盟，曾建民. 5005 铝合金分流模挤压过程有限元模拟*[J]. 航空制造技术, 2017, 60(18): 88-92. DOI： 10.16080/j.issn1671-833x.2017.18.088.

CHEN Ling, DUAN Yafei, TAN Zimeng, ZENG Jianmin. Finite Element Simulation on Porthole Die Extruding Process of 5005 Aluminum. Aeronautical Manufacturing Technology, 2017, 60(18): 88-92. DOI： 10.16080/j.issn1671-833x.2017.18.088.

摘要

采用DEFORM-3D 有限元商业软件，利用焊合面重构技术实现了空心型材分流组合模挤压过程模拟，获取了挤压过程中的材料流动行为与流动速度场的规律，结合型材挤出时模拟的应力场和应变场的分布，研究型材挤压的晶粒分布规律并其成因。结果表明：挤压型材的横截面上的应力应变分布与实际晶粒尺寸分布有对应关系，型材挤压成形过程中应力应变集中分布是造成型材边部晶粒尺寸比中心部细小，拐角区域晶粒比直边区域细小的原因。

Abstract

Using a mesh-reconstruction technology of welding-plane

the porthole die extrusion process of an hollow profile was successfully simulated based on software DEFORM-3D. The metal flow behaviors

velocity distribution regularities were revealed. Combining with the effective stress and strain on the profile

the distribution of grain size on the profile and its causes were discussed. The result shows the stress and strain distribution of the extrusion profile has certain corresponding relation with the grain size distribution

in other words

finer grain size at the corner area and inner part of the hollow profile result from the concentration of the stress and strain during the extruding.

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