scholarly journals Microstructure Evolution of 5052 Aluminum Sheet in Electromagnetic High-Speed Impact

Metals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 564
Author(s):  
Fei Feng ◽  
Jianjun Li ◽  
Yunjun Zhang ◽  
Liang Huang ◽  
Hongliang Su ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Deformation Mechanism ◽  
High Speed ◽  
Alloy Sheet ◽  
Electromagnetic Forming ◽  
Aluminum Alloy Sheet ◽  
High Speed Impact ◽  
Forming Technology ◽  
High Speed Forming ◽  
Microscopic Deformation

Electromagnetic forming (EMF) is a high-speed forming technology, which can not only improve the formability of hard-to-form materials but also reduce springback. Electromagnetic high-speed impact can further improve the formability compared with electromagnetic free forming. The microscopic deformation mechanism of electromagnetic high-speed impact of aluminum alloy is discussed in this paper. The microstructures of electromagnetic high-speed impact of an aluminum alloy sheet were characterized. The microscopic deformation mechanisms of electromagnetic forming and electromagnetic high-speed impact were shown, respectively. The research results showed that electromagnetic high-speed impact could significantly improve the microhardness of the workpiece. The grains broke up and then became small subgrains during electromagnetic high-speed impact. The deformation mechanism was dominated by dislocation cross slip under electromagnetic high-speed impact.

Analysis of the Increased Formability of Aluminum Alloy Sheet Formed Using Electromagnetic Forming

2005 ◽  
Author(s):  
J. Imbert ◽  
M. Worswick ◽  
S. Winkler ◽  
S. Golovashchenko ◽  
V. Dmitriev
Keyword(s):  
Aluminum Alloy ◽  
Alloy Sheet ◽  
Electromagnetic Forming ◽  
Aluminum Alloy Sheet

Chapter 13 electromagnetic forming of aluminum alloy sheet using a grooved die: Numerical modeling

2006 ◽  
Vol 102 (S1) ◽  
pp. S90-S93 ◽  
Author(s):  
G. Mamalis ◽  
D. E. Manolakos ◽  
A. G. Kladas ◽  
A. K. Koumoutsos ◽  
S. G. Ovchinnikov
Keyword(s):  
Numerical Modeling ◽  
Aluminum Alloy ◽  
Alloy Sheet ◽  
Electromagnetic Forming ◽  
Aluminum Alloy Sheet

scholarly journals Effect of Die Geometry on the Formability of 5052 Aluminum Alloy in Electromagnetic Impaction Deformation

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1379 ◽  
Author(s):  
Fei Feng ◽  
Jianjun Li ◽  
Rongchuang Chen ◽  
Peng Yuan ◽  
Hongliang Su ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Stress State ◽  
High Speed ◽  
Alloy Sheet ◽  
Forming Limit ◽  
Aluminum Alloy Sheet ◽  
Die Geometry ◽  
The Past ◽  
Pressure Stress ◽  
Insight Into

The formability of aluminum alloy sheet in electromagnetic impaction deformation has attracted the attention of numerous researchers for the past decades. However, the influences of die geometry and high-speed impaction electromagnetic deformation on formability have not been well established, thereby resulting in the formability of the sheet not being developed fully. In this study, the influence of die geometry on the formability of 5052 aluminum alloy in electromagnetic deformation was investigated by comparing the formability of 5052 aluminum alloys formed using a hemispherical die and a cylindrical die. The intriguing finding is that the formability of the 5052 aluminum alloy formed using a cylindrical die is considerably higher than that formed using a hemispherical die. Therefore, die geometry significantly influences the formability of 5052 aluminum alloy. The influence of die geometry on the formability of 5052 aluminum alloy in high-speed impaction electromagnetic deformation was explained in terms of strain rate, pressure stress, and stress state. This investigation enhances insight into the interaction between sheets and dies, and provides a reference for the studying influence of dies on the forming limit of sheets in high-speed impaction deformation.

Heat Spinning Deformation Technology of 7A04 Loading-Wheel

2013 ◽  
Vol 652-654 ◽  
pp. 1988-1993
Author(s):  
Heng Qiu Xu ◽  
Ming Zhe Li ◽  
Lin Lin Li ◽  
Rui Zhang ◽  
Da Li Wang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Process Parameters ◽  
Performance Test ◽  
Mechanical Performance ◽  
Alloy Sheet ◽  
Aluminum Alloy Sheet ◽  
Internal Organization ◽  
Forming Technology ◽  
Spinning Process ◽  
Conventional Spinning

The program 7A04 aluminum alloy loading-wheels spinning process is described briefly. It formulates the process parameters of aluminum alloy loading-wheels spinning. It uses the aluminum alloy sheet heat spinning process. It analyzes conventional spinning preformed and spinning flanging forming technology regulation. It studies the lubricating technology in the spinning process. The cracking problem is analyzed and solved in the spinning process. The mechanical performance test and the internal organization of the inspection are detected. The finished product meets the requirements. The small batch loading-wheels are produced, which lay the foundation for large quantities loading-wheel spinning production for future.

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