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模芯角度对镁合金静液挤压过程的作用
作者:
作者单位:

南京理工大学

中图分类号:

TP311；TG376.2

基金项目:

国家重大科技专项资助项目(2012ZX04010101)


Effects of Mandrel Angle on Hydrostatic Extrusion Process of Magnesium Alloy Tube
Author:
Affiliation:

Nanjing University of Sicence and Technology

Fund Project:

Projects(2012ZX04010101) supported by National Science and Technology Major Project

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    摘要:

    文章通过DEFORM-3D软件模拟了不同的挤压速度与初始坯料温度条件下，模芯的角度（90°, 120°, 150°）对管材静液挤压成形过程的影响。模拟结果显示，静液挤压过程中大角度模芯的压力峰值明显高于小角度模芯的压力峰值，同时随着模芯角度的增大管材的速度场分布不均性增加。

    Abstract:

    The hydrostatic extrusion process of magnesium alloy AZ80 tube with different mandrel angles (90°,120°,150°) was simulated by the DEFORM-3D software with different extrusion speeds and initial billet temperature. The simulated results show that the peak load of the extrusion process with big mandrel angle is obviously higher than that of the small angle and the inhomogeneity of billet velocity field is intensified with the increase of the mandrel angle.

    参考文献
    [1]WANG Fuchi, ZHANG Chaohui. Hydrostatic Extrusion[M]. Beijing: National Defense Industry Press, 2008.
    [2]J.Bohlen, S.B.Yi, J.Swiostek, D.Letzig, H.G.Brokmeier, K.U.Kainer. Microstructure and texture development during hydrostatic extrusion of magnesium alloy AZ31[J]. Scripta Materialia, 2005, 53(2), pp. 259-264.
    [3]HU Jun, LYU Yan, REN Zening, HUANG Jianwen, LIU Fengtao, et al. Research Progress and Application of Hydrostatic Extrusion Technology[J]. Hot Working Technology, 2014, 43(15), pp. 20-23.
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    [7]WANG Shaochun, LI Qiang, ZHANG Guofeng, WANG Xiaoxiang. Study on warm hydrostatic extrusion of magnesium alloy[J]. LIGHT ALLOY FABRICATION TECHNOLOGY, 2008, 36(11), pp. 34-37.
    [8]WU Zhilin, WANG Yujie, YUAN Renshu, ZHAO Lei, SONG Defeng. Effect of preheating Temperature on Hydrostatic Extending-Extrusion Forming of Magnesium Alloy Tube[J]. Hot Working Technology, 2014, 43(11), pp. 94-97.
    [9]ZHAO Zude, WANG Shaochun, HuChuankai, KANG Feng, SHU Dayu. Experimental Study on Hydrostatic Extrusion Processes of AZ31 Magnesium[J]. China Mechanical Engineering, 2008, 19(9), pp. 1111-1115.
    [10]CHEN Zhenghua. Wrought Magnesium Alloys[M]. Beijing: Chemical Industry Press, 2005.
    [11]H. T. Zhou, Q. B. Li, Z. K. Zhao, Z. C. Liu, S. F. Wen, et al. Hot workability characteristics of magnesium alloy AZ80—A study using processing map[J]. Materials Science and Engineering A, 2010, 527(100), pp. 2022-2026.
    [12]CUI Jianzhong, WANG Zhongtang, ZHAO Genfa. Research on Deforming Force of Magnesium Alloy Tube Extrusion[A]. MACE 2011- Proceedings, 2011, pp. 4317-4320.
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赵孟军.模芯角度对镁合金静液挤压过程的作用[J].稀有金属材料与工程,2017,46(5):1214~1218.[ZhaoMengjun. Effects of Mandrel Angle on Hydrostatic Extrusion Process of Magnesium Alloy Tube[J]. Rare Metal Materials and Engineering,2017,46(5):1214~1218.]
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  • 收稿日期:2016-05-17
  • 最后修改日期:2016-10-14
  • 录用日期:2016-10-14
  • 在线发布日期: 2017-09-27

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