Numerical Simulation of Residual Stress during Stamping-Forging Forming of 2024 Aluminum Alloy Sheet Metal

2012 ◽  
Vol 602-604 ◽  
pp. 1903-1909
Author(s):  
Da Li ◽  
Lei Deng ◽  
Xin Yun Wang ◽  
Jun Song Jin ◽  
Ju Chen Xia
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Field ◽  
Dimensional Accuracy ◽  
Alloy Sheet ◽  
Residual Stress Field ◽  
Forming Process ◽  
2024 Aluminum Alloy ◽  
Dimensional Precision ◽  
Finite Element Software

The unreasonable residual stress field in sheet part has an adverse effect on the dimensional accuracy and performance. A forming method combined stamping and forging was proposed to reduce the residual stress of the sheet part. The residual stress field in 2024 aluminum alloy V-shaped piece after bending and forging was analyzed by the finite element software Abaqus. The results showed that the stamping-forging forming process can significantly reduce the residual stress in round corner of V-shaped piece, and simultaneously decrease springback and improve the dimensional precision of sheet part.

Simulation and Experimental Study on Residual Stress Field of 2024 Aluminum Alloy Induced by Flat-Top Laser Beam

2012 ◽  
Vol 39 (10) ◽  
pp. 1003001
Author(s):  
余天宇 Yu Tianyu ◽  
戴峰泽 Dai Fengze ◽  
张永康 Zhang Yongkang ◽  
安中伟 An Zhongwei ◽  
Charles LOY Charles LOY ◽  
...  
Keyword(s):  
Residual Stress ◽  
Experimental Study ◽  
Aluminum Alloy ◽  
Stress Field ◽  
Laser Beam ◽  
Residual Stress Field ◽  
2024 Aluminum Alloy

Simulation on Temperature and Residual Stress Field of Laser-MIG Hybrid Welding of A6N01-T5 Alloy

2011 ◽  
Vol 399-401 ◽  
pp. 2040-2043 ◽  
Author(s):  
Da Li ◽  
Hua Ji ◽  
Yan Liu ◽  
Guo Qing Gou ◽  
Hui Chen ◽  
...  
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Field ◽  
Welded Joints ◽  
Hybrid Welding ◽  
Mig Welding ◽  
Residual Stress Field ◽  
Heat Cycling

MIG welding and laser-MIG hybrid welding have been widely used to joint aluminum alloy in recent years. Residual stress and heat cycling of MIG welding and laser-MIG hybrid welding are analyzed by SYSWELD software. The results show that the peak values of the stress in hybrid welding is 30~50% less than the results in the MIG welded joints.

Numerical Simulation of the Stamping Forming Process of Alloy Automobile Panel

2011 ◽  
Vol 704-705 ◽  
pp. 1473-1479
Author(s):  
Jian Zhang ◽  
Yu Lin Ning ◽  
Ben Dong Peng ◽  
Zhi Hua Wang ◽  
Da Sen Bi
Keyword(s):  
Numerical Simulation ◽  
Aluminum Alloy ◽  
Alloy Sheet ◽  
Forming Process ◽  
Paper Properties ◽  
6061 Aluminum Alloy ◽  
Finite Element Software ◽  
Machine Performance ◽  
Automobile Panel ◽  
Auto Panel

6xxx based alloy auto body sheet will be used widely in the future, but, in the recent, one of the difficulty in practice is its poor formability. In this paper properties parameters of 6061 aluminum alloy sheet are investigated by means of examination; By using machine performance parameters of 6061 aluminum alloy, finite element software eta/DYNAFORM of Sheet Forming make the numerical simulation of auto deck lid outer panel .Stress, plastic strain, thick variety are analyzed; and the wrinkling and cracking prone areas identified. Therefore, the effective reference can be provided for design of forming process of 6xxx Based Alloy auto panel.

Numerical Simulation of Laser Shock Peening on Residual Stress Field of 7075-T6 Aluminum Alloy Welding

2014 ◽  
Vol 34 (4) ◽  
pp. 0414003
Author(s):  
罗密 Luo Mi ◽  
罗开玉 Luo Kaiyu ◽  
王庆伟 Wang Qingwei ◽  
鲁金忠 Lu Jinzhong
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Field ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Residual Stress Field ◽  
Shock Peening

Experiment and numerical simulation of micro dent fabricated by laser shocking 2024 aluminum alloy

2019 ◽  
Vol 16 (1) ◽  
pp. 156-168
Author(s):  
Yezhong Fang ◽  
Xiaotian Ji ◽  
Xingquan Zhang ◽  
Jun Wang ◽  
Bin Chen ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Energy ◽  
Outer Edge ◽  
Residual Stress Field ◽  
Forming Process ◽  
Laser Shock Processing ◽  
2024 Aluminum Alloy ◽  
Element Analysis ◽  
Content Type ◽  
Forming Mechanism

Purpose The purpose of this paper is to investigate the dynamic forming process of the micro dent fabricated by laser shock processing on 2024-T3 aluminum alloy. The effect of laser pluse energy on the deformation of micro dent was also discussed in detail. Design/methodology/approach It uses finite element analysis method and the corresponding laser shocking experiment. Findings The results demonstrate that the dynamic formation process of micro dent lasts longer in comparison with the shock wave loading time, and the depths of micro dents increase with the increasing laser energy. In addition, laser shocking with higher energy can result in more obvious pileup occurred at the outer edge of micro dent. Originality/value Surface micro dents can serve as fluid reservoirs and traps of the wear debris, which can decrease the effects of the wear and friction in rolling and sliding interfaces. The investigations can not only be propitious to comprehensively understand the forming mechanism of laser-shocked dent, but also be beneficial to get sight into the residual stress field induced by laser shocking.

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