Formability of AZ31 magnesium alloy in warm incremental forming process

2009 ◽  
Vol 2 (S1) ◽  
pp. 5-8 ◽  
Author(s):  
G. Ambrogio ◽  
S. Bruschi ◽  
A. Ghiotti ◽  
L. Filice
2016 ◽  
Vol 61 (2) ◽  
pp. 1003-1008 ◽  
Author(s):  
A. Dziubińska ◽  
A. Gontarz ◽  
K. Dziedzic

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.


2010 ◽  
Vol 654-656 ◽  
pp. 739-742 ◽  
Author(s):  
Kenichi Manabe ◽  
Toshiji Morishima ◽  
Yu Ogawa ◽  
Kazuo Tada ◽  
Tsutomu Murai ◽  
...  

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.


2010 ◽  
Vol 97-101 ◽  
pp. 75-80
Author(s):  
Hong Bo Li ◽  
Mei Lu ◽  
Jun Ting Luo

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.


2014 ◽  
Vol 1016 ◽  
pp. 75-79 ◽  
Author(s):  
Dong Hong Kim ◽  
Dae Hwan Yoon ◽  
Hao Yu ◽  
Dong Won Jung

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.


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