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 ◽  
...  

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.

2019 ◽  
Vol 6 (4) ◽  
pp. 046526
Author(s):  
Liang Guo ◽  
Peng Cai ◽  
Hao Wang ◽  
Yao Chen ◽  
Qingmao Zhang ◽  
...  

Metals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 564
Author(s):  
Fei Feng ◽  
Jianjun Li ◽  
Yunjun Zhang ◽  
Liang Huang ◽  
Hongliang Su ◽  
...  

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.


2010 ◽  
Vol 37-38 ◽  
pp. 599-602 ◽  
Author(s):  
Jing Hua Zhao ◽  
Shu Min Wan ◽  
Shuang Yi Li

In this paper, the technology of self-piercing riveting (SPR) with half-hollow rivets was investigated using experiments and numerical simulations with 6063 aluminum alloy sheet. The failure mechanism of SPR aluminum alloy sheet was indicated with the shear model and tear model, which could accurately simulate the sheet structure. Based on the simulation results with finite element method (FEA), the effect of die geometry on static mechanical characteristics, including punch load, failure load and failure displacement, was analyzed. It was discovered that the die pip height and sheet thickness should be designed synthetically for optimal tensile behavior.


2012 ◽  
Vol 572 ◽  
pp. 255-260 ◽  
Author(s):  
Qing Lei Meng ◽  
Bao Yu Wang ◽  
Lei Fu ◽  
Jing Zhou ◽  
Jian Guo Lin

The AA6111 aluminum alloy sheet is widely used in auto-body manufacture. It can make use of good plasticity under high temperature to form more complex parts by using the hot stamping. The influence of process parameters in hot stamping of AA6111 aluminum alloy sheet is investigated through numerical simulation in this paper, including blank holding force (BHF), friction coefficient, stamping velocity and initial forming temperature. Finally forming defects of numerical simulation are verified through the hot stamping experiments. The results show that it can effectively avoid wrinkling and fracture by controlling the BHF, good lubricant is in favor of forming and numerical simulation can accurately predict forming defects to guide the production.


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