Researches and validation on new type continuous forming for extrusion-shear-bending of magnesium alloy thin-walled tube

被引：0
|
作者：
Hu H.-J. [1 ]
Hu G. [1 ]
Xie D.-W. [1 ]
Zhang O. [1 ]
Zhang D.-F. [2 ]
Dai Q.-W. [3 ]
Ou Z.-W. [4 ]
机构：
[1] School of Materials Science and Engineering, Chongqing University of Technology, Chongqing
[2] School of Materials Science and Engineering, Chongqing University, Chongqing
[3] School of Metallurgy and Materials, Chongqing University of Science and Technology, Chongqing
[4] School of Chemistry and Materials, Army Service College, Chongqing
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2022年 / 32卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Large plastic deformation; Magnesium alloy thin-walled tube; Microstructure; Numerical simulation;
D O I：
10.11817/j.ysxb.1004.0609.2021-37946
中图分类号：
学科分类号：
摘要：
In order to promote the industrialization of large plastic deformation technology of magnesium alloy, an tube extrusion-shearing-bending (TESB) forming method of magnesium alloy thin-walled tube was studied by combining forward extrusion and equal channel angle extrusion. The deformation process of TESB was simulated by finite element method. The TESB forming die was installed on the extruder and TESB experiments have been done. In order to observe the microstructures of the extruded tube, the testing data were processed. The results show that the preheated temperature of tube increase with the rise of extrusion speeds obviously, and the extrusion loads decrease with the rise of preheated temperatures and the dropping of friction factors. TESB forming can refine the microstructures of magnesium alloy tube and improve the forming efficiency. TESB is a new method of large plastic deformation of magnesium alloy tube, which can effectively refine the grains and improve the uniformity of microstructures. © 2022, China Science Publishing & Media Ltd. All right reserved.
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页码：921 / 929
页数：8
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