The Modulus Mensuration of Yada Model and the Microstructure Simulation of Casting AZ31 Magnesium Alloy

2010 ◽  
Vol 97-101 ◽  
pp. 75-80
Author(s):  
Hong Bo Li ◽  
Mei Lu ◽  
Jun Ting Luo
Keyword(s):  
Magnesium Alloy ◽  
Hot Forming ◽  
Az31 Magnesium Alloy ◽  
Forming Process ◽  
Microstructure Transformation ◽  
Microstructure Simulation ◽  
Result Analysis

Both experimentation and calculation of the Yada model modulus of casting AZ31 magnesium alloy are provided in this paper. Based on revised Yada model, the microstructure simulation of precision forming inner gear is performed using Superform software. On the basisi of result analysis, the microstructure transformation of the casting magnesium alloy in the hot-forming process is forecasted in terms of revised Yada model.

scholarly journals Qualitative Research of AZ31 Magnesium Alloy Aircraft Brackets Produced by a New Forging Method

2016 ◽  
Vol 61 (2) ◽  
pp. 1003-1008 ◽  
Author(s):  
A. Dziubińska ◽  
A. Gontarz ◽  
K. Dziedzic
Keyword(s):  
Qualitative Research ◽  
Finite Element ◽  
Magnesium Alloy ◽  
Numerical Results ◽  
Experimental Results ◽  
Az31 Magnesium Alloy ◽  
Forming Process ◽  
Closed Die Forging ◽  
Selection Of ◽  
Good Agreement

AbstractThe paper reports a selection of numerical and experimental results of a new closed-die forging method for producing AZ31 magnesium alloy aircraft brackets with one rib. The numerical modelling of the new forming process was performed by the finite element method.The distributions of stresses, strains, temperature and forces were examined. The numerical results confirmed that the forgings produced by the new forming method are correct. For this reason, the new forming process was verified experimentally. The experimental results showed good agreement with the numerical results. The produced forgings of AZ31 magnesium alloy aircraft brackets with one rib were then subjected to qualitative tests.

Warm Hydroforming Process with Non-Uniform Heating for AZ31 Magnesium Alloy Tube

2010 ◽  
Vol 654-656 ◽  
pp. 739-742 ◽  
Author(s):  
Kenichi Manabe ◽  
Toshiji Morishima ◽  
Yu Ogawa ◽  
Kazuo Tada ◽  
Tsutomu Murai ◽  
...  
Keyword(s):  
Finite Element ◽  
Temperature Distribution ◽  
Magnesium Alloy ◽  
Tube Hydroforming ◽  
Az31 Magnesium Alloy ◽  
Fe Model ◽  
Uniform Heating ◽  
Forming Process ◽  
Alloy Tube ◽  
Warm Hydroforming

In this study, non-uniform heating approach in warm T-joint forming process is attempted for the AZ31 magnesium alloy tube. For this purpose, finite element simulation is performed to analyze the appropriate temperature distribution. The validity of the finite element(FE) model of T-joint tube hydroforming(THF) is verified by comparing the FE simulation and experimental results. Using this FE model, appropriate temperature distribution was suggested. In addition, it was showed that the wall thickness could be more uniform by optimizing the temperature condition.

Air bending of AZ31 magnesium alloy in warm and hot forming conditions

2006 ◽  
Vol 177 (1-3) ◽  
pp. 373-376 ◽  
Author(s):  
C. Bruni ◽  
A. Forcellese ◽  
F. Gabrielli ◽  
M. Simoncini
Keyword(s):  
Magnesium Alloy ◽  
Hot Forming ◽  
Az31 Magnesium Alloy ◽  
Air Bending

Study on Spring-Back Effect with Various Temperature of Magnesium Alloy in Roll Forming Process

2014 ◽  
Vol 1016 ◽  
pp. 75-79 ◽  
Author(s):  
Dong Hong Kim ◽  
Dae Hwan Yoon ◽  
Hao Yu ◽  
Dong Won Jung
Keyword(s):  
Magnesium Alloy ◽  
High Temperatures ◽  
Alloy Sheet ◽  
Az31 Magnesium Alloy ◽  
Roll Forming ◽  
Spring Back ◽  
Forming Process ◽  
Explicit Finite Element ◽  
Back Angle ◽  
Roll Forming Process

AZ31 magnesium alloy sheets are usually performed at high temperatures of 200 to 250°C due to their unusual hexagonal close-packed structure and low ductility at room temperature. In this study, to predict the spring-back of AZ31 magnesium alloy sheets in a roll forming process subjected to high temperatures, so the spring-back phenomenon consider in various temperature using an explicit finite element code. Finally, the roll forming process for a magnesium alloy sheet at high temperatures was performed to verify the spring-back angle, which was then compared with the spring-back angle predictions of the FE simulation.

Pulse Current Auxiliary Tensile and Bulging of Light Metal Alloy

2013 ◽  
Vol 690-693 ◽  
pp. 2356-2360 ◽  
Author(s):  
Jing Yuan Liu ◽  
Kai Feng Zhang ◽  
Shao Song Jiang
Keyword(s):  
Titanium Alloy ◽  
Magnesium Alloy ◽  
Pulse Current ◽  
Superplastic Forming ◽  
Az31 Magnesium Alloy ◽  
Forming Process ◽  
Polarity Effect ◽  
Tensile Process ◽  
Ta15 Titanium Alloy ◽  
The Impact

Pulse current effects during hot tensile process and superplastic forming process of AZ31 magnesium alloy and TA15 titanium alloy were investigated in this paper. The experimental results indicate that the current can produce polarity effect to coarse grain AZ31 magnesium alloy, but to fine grained TA15 titanium alloy, the polarity effect is not obvious. The impact of electron wind force can change the strength of material during tensile process and affect final shape of part, making the dome of AZ31 hemisphere part deviated from the axis to the side of positive pole during superplastic forming process. In addition, the impact of current depends on current density and dislocation density.

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