The effects of temperature and forming speed on the forming limit diagram for type 5083 aluminum–magnesium alloy sheet

2001 ◽  
Vol 113 (1-3) ◽  
pp. 648-653 ◽  
Author(s):  
Tetsuo Naka ◽  
Gaku Torikai ◽  
Ryutaro Hino ◽  
Fusahito Yoshida
Keyword(s):  
Magnesium Alloy ◽  
Forming Limit Diagram ◽  
Alloy Sheet ◽  
Forming Limit ◽  
Magnesium Alloy Sheet ◽  
Effects Of Temperature ◽  
Aluminum Magnesium Alloy

Experimental Research on AZ31 Magnesium Alloy Sheet with Electromagnetic Forming and Quasi-Static Forming

2012 ◽  
Vol 509 ◽  
pp. 253-258 ◽  
Author(s):  
Fei Feng ◽  
Zheng Hua Meng ◽  
Shang Yu Huang ◽  
Jian Hua Hu ◽  
Zhi Lei He
Keyword(s):  
Magnesium Alloy ◽  
Forming Limit Diagram ◽  
Alloy Sheet ◽  
Electromagnetic Forming ◽  
Az31 Magnesium Alloy ◽  
Forming Limit ◽  
Magnesium Alloy Sheet ◽  
Punch Test ◽  
Az31 Magnesium Alloy Sheet ◽  
Forming Methods

Forming Limit Diagram of AZ31 magnesium alloy in different forming methods was researched in this paper. Experiment equipment and processes were improved successfully. Some tests and experiments (including tensile test, punch test and electromagnetic forming experiment) of AZ31 magnesium alloy sheet were done. Forming Limit Diagram of electromagnetic forming was established successfully. It could promote the application of magnesium alloy sheet in electromagnetic forming. Forming Limit Diagram of static forming was established successfully. It was very useful for the application of magnesium alloy sheet in other forming methods. The difference between these Forming Limit Diagram showed that electromagnetic forming obviously improve forming ability of the magnesium alloy sheet.

Forming limit analysis of Mg-2Zn-1.2Al-0.2Ca-0.2RE alloy sheet using ductile fracture models

2019 ◽  
Vol 29 (8) ◽  
pp. 1181-1198 ◽  
Author(s):  
Fei-Fan Li ◽  
Gang Fang ◽  
Ling-Yun Qian
Keyword(s):  
Magnesium Alloy ◽  
Ductile Fracture ◽  
Stress Triaxiality ◽  
Forming Limit Diagram ◽  
Alloy Sheet ◽  
Image Correlation ◽  
Forming Limit ◽  
Correlation Technique ◽  
Forming Limits ◽  
Fracture Models

This work was aimed to experimentally and theoretically investigate the formability of a new magnesium alloy sheet at room temperature. The fracture forming limit diagram was predicted by MMC3 and DF2014 models, where the non-linear strain path effect was taken into account by means of damage accumulation law. In order to obtain the instantaneous values of the stress triaxiality and the Lode parameter during the deformation process, strains tracked by digital image correlation technique were transformed into stresses based on the constitutive equations. The fracture forming limit diagram predicted by the fracture models was compared with the forming limits obtained by ball punch deformation tests. The prediction errors were evaluated by the accumulative damage values, which verified the advantages of ductile fracture models in predicting the forming limits of the magnesium alloy sheets.

1006 Effects of Temperature and Strain-Rate on Non-proportion Forming Limit Diagram for AZ31 Magnesium Alloy Sheets

2009 ◽  
Vol 2009.47 (0) ◽  
pp. 337-338
Author(s):  
Yosuke UEKAWA ◽  
Takashi KATAHIRA ◽  
Akiyoshi ODE ◽  
Testuo NAKA ◽  
Takeshi UEMORI ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Strain Rate ◽  
Forming Limit Diagram ◽  
Az31 Magnesium Alloy ◽  
Forming Limit ◽  
Effects Of Temperature

Formability Prediction for Thermal Stamping of Magnesium Alloy Sheet Based on M-K Model

2013 ◽  
Author(s):  
Z. H. Chen ◽  
Y. Wen ◽  
C. H. Sun
Keyword(s):  
Magnesium Alloy ◽  
Sheet Metal ◽  
Low Cost ◽  
Alloy Sheet ◽  
Forming Limit ◽  
Forming Process ◽  
Element Analysis ◽  
High Productivity ◽  
Magnesium Alloy Sheet ◽  
Formability Prediction

Sheet metal stamping processes play an important role among the mechanical manufacturing operation, since they are characterized by high productivity and reliability at low cost, low material waste and almost net shapes from design. In this study, based on the Marciniak and Kuczynski (M-K) model and the forming limit diagrams (FLD), the formability prediction for thermal stamping of magnesium alloy sheet has been carried out by means of the commercial finite element analysis software ABAQUS. Moreover, related experiments of thermal stamping were also performed to validate the model. The comparison between the numerical result and experimental observation shows a good agreement. Therefore, it may indicate that the presented approach can be employed in formability prediction of thermal sheet metal forming process.

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