Influences of expanding angles on extrusion-shearing-expanding processing of AZ31 magnesium alloy thin-walled tubes

2021 ◽  
Author(s):  
Ye Tian ◽  
Hongjun Hu ◽  
Pengcheng Liang ◽  
Dingfei Zhang ◽  
Zhongwen Ou
Keyword(s):  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Thin Walled

Thin-Walled Tube Made of AZ31 Magnesium Alloy Fabricated by New Compound Extrusion Including Direct Extrusion and Multi-pass Bending

2021 ◽  
Author(s):  
LI Xing lin ◽  
Hongjun Hu ◽  
Zhang Huiling ◽  
Zhao Hui ◽  
ZHANG Dingfei ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Magnesium Alloy ◽  
Fem Simulation ◽  
Az31 Magnesium Alloy ◽  
Process Conditions ◽  
Direct Extrusion ◽  
Tube Extrusion ◽  
Fem Method ◽  
Thin Walled Tube ◽  
Thin Walled

Abstract A new severe plastic deformation for manufacturing thin-walled tube made of AZ31 magnesium alloy called TEB(Tube-Extrusion-Bending ) process, which combines direct extrusion with two step bending,has been developed to manufacture tube.The TEB process has been researched by using finite element modeling (FEM) method. The rules of extrusion temperatures and the extrusion forces varying with process parameters have been developed. A TEB process with installed containers and dies has been constructed to perform tests in order to validate the FEM model with different process conditions. And the microstructures evolution have been researched based on effective strains evolution. The results showed that refined and uniform microstructures can be achieved by TEB process. The research results showed that the TEB process would produce the serve plastic deformation and improve the recrystallization of the grains.The comparisons of FEM simulation and experimental results have been made to obtain the relative important principles of TEB process.

Energy absorption of thin-walled profiles made of AZ31 magnesium alloy

2018 ◽  
Vol 122 ◽  
pp. 491-500 ◽  
Author(s):  
Zbigniew Gronostajski ◽  
Paweł Kaczyński ◽  
Sławomir Polak ◽  
Bartosz Bartczak
Keyword(s):  
Magnesium Alloy ◽  
Energy Absorption ◽  
Az31 Magnesium Alloy ◽  
Thin Walled

Press Forging of Thin-Walled AZ31 Magnesium-Alloy Components

2011 ◽  
Vol 189-193 ◽  
pp. 1401-1405
Author(s):  
Fuh Kuo Chen ◽  
Shin Gee Chen
Keyword(s):  
Finite Element ◽  
Magnesium Alloy ◽  
Process Parameters ◽  
Sheet Thickness ◽  
Az31 Magnesium Alloy ◽  
Compression Tests ◽  
Element Analysis ◽  
Design Guideline ◽  
Forging Process ◽  
Thin Walled

The press forging of AZ31 magnesium-alloy sheets for producing thin-walled structural components used in the electronics industry was examined by both the finite element analysis and the experimental approach in the present study. The experimental results obtained from the compression tests and ring compression tests were employed in the finite element simulations to investigate the effects of process parameters, such as forming temperature, friction condition, embossment location, and sheet thickness on the formation of embossments in a press forging process. The finite element simulation results reveal that a cost-effective press forging process of AZ31 magnesium-alloy requires an optimum combination of the above parameters. The detailed examination of the effects of the process parameters on the formation of embossments made in the present study could provide a design guideline for a press forging process of AZ31 magnesium-alloy sheets.

scholarly journals Influences of Expanding Angles on Extrusion-Shearing-Expansion Processing of AZ31 Magnesium Alloy Thin-Walled Tubes

2021 ◽  
Author(s):  
Ye TIAN ◽  
Hong jun HU ◽  
Pengcheng LIANG ◽  
Dingfei ZHANG ◽  
Zhongwen OU
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Extrusion Direction ◽  
Optical Microscope ◽  
Az31 Magnesium Alloy ◽  
Expansion Process ◽  
X Ray ◽  
Grain Sizes ◽  
Thin Walled ◽  
Deform 3D

Abstract To research the influence mechanisms of expanding angles on extrusion-shearing-expansion(ESE) process of AZ31 magnesium alloy thin-walled tubes,the effects of different expanding angles on microstructures and mechanical properties of AZ31 magnesium alloy during extrusion-shear-expansion process have been investigated by optical microscope(OM),scanning electron microscope (SEM),X-ray diffractometer(XRD).Three expanding angles 130°,140°,150° have been used.The forming loads varying with expanding ratios,and equivalent strains at various expanding angles have been simulated by Deform-3D software.The research results show that the qualities and mechanical properties of the formed tube are satisfactory, and extrusion-shearing-expanding process can refine the grain of AZ31 magnesium alloy thin-walled tubes.The grain sizes decrease with the decrease of expanding angles.When the expanding angle is 140°,the comprehensive mechanical properties are best,and yield strength is 122.3MPa,the tensile strength 288.6MPa,the elongation 15.2%, the texture intense is optimized due to the DRX.The deflections of basal plane for most grains are obvious relative to the extrusion direction(ED).

EFFECT OF SAMPLE ORIENTATION ON STATIC RECRYSTALLIZATION OF AZ31 MAGNESIUM ALLOY

2012 ◽  
Vol 48 (8) ◽  
pp. 915 ◽  
Author(s):  
Hongtao HUANG ◽  
Andrew Godfrey ◽  
Wei LIU ◽  
Ruihe TANG ◽  
Qing LIU
Keyword(s):  
Magnesium Alloy ◽  
Static Recrystallization ◽  
Az31 Magnesium Alloy ◽  
Sample Orientation
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