scholarly journals Strengthening Effect Analysis of Laser Shock Processing on Aluminum Alloy Welded Joint Process

2015 ◽  
Vol 130 ◽  
pp. 524-530 ◽  
Author(s):  
C. Su ◽  
J.Z. Zhou ◽  
J. Sheng ◽  
S. Huang ◽  
X.K. Meng
Keyword(s):  
Aluminum Alloy ◽  
Welded Joint ◽  
Strengthening Effect ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Effect Analysis ◽  
Shock Processing

Effects of Sheet Thickness on Residual Stress Distribution by Laser Shock Processing of 7050-T7451 Aluminum Alloy

2011 ◽  
Vol 189-193 ◽  
pp. 3778-3781
Author(s):  
Yin Fang Jiang ◽  
Lei Fang ◽  
Zhi Fei Li ◽  
Zhen Zhou Tang
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Stress Distribution ◽  
Residual Stresses ◽  
Sheet Thickness ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Element Analysis ◽  
Finite Element Software ◽  
Shock Processing

Laser shock processing is a technique similar to shot peening that imparts compressive residual stresses in materials for improved fatigue resistance. Finite element analysis techniques have been applied to predict the residual stresses from Laser shock processing. The purpose of this paper is to investigate of the different sheet thickness interactions on the stress distribution during the laser shock processing of 7050-T7451 aluminum alloy by using the finite element software. The results indicate that the sheet thickness has little effects on the compression stress in the depth of sheet, but great impacts on the reserve side.

Micro-Structural Enhancement Mechanism of LY2 Aluminum Alloy by Means of a Single Laser Shock Processing

2010 ◽  
Vol 37 (10) ◽  
pp. 2662-2666 ◽  
Author(s):  
鲁金忠 Lu Jinzhong ◽  
罗开玉 Luo Kaiyu ◽  
冯爱新 Feng Aixin ◽  
钟俊伟 Zhong Junwei ◽  
孙桂芳 Sun Guifang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Enhancement Mechanism ◽  
Single Laser ◽  
Shock Processing

Experimental Study of Residual Stress Formation Mechanism of 7050 Aluminum Alloy Sheet by Laser Shock Processing

2016 ◽  
Vol 43 (7) ◽  
pp. 0702008
Author(s):  
曹宇鹏 Cao Yupeng ◽  
徐影 Xu Ying ◽  
冯爱新 Feng Aixin ◽  
花国然 Hua Guoran ◽  
周东呈 Zhou Dongcheng ◽  
...  
Keyword(s):  
Residual Stress ◽  
Experimental Study ◽  
Aluminum Alloy ◽  
Alloy Sheet ◽  
Laser Shock ◽  
Aluminum Alloy Sheet ◽  
Laser Shock Processing ◽  
7050 Aluminum Alloy ◽  
Stress Formation ◽  
Shock Processing

Investigated on Fatigue Properties of Aluminum Ally 7050T7451 with Fastener Holes by Laser Shock Processing

2012 ◽  
Vol 460 ◽  
pp. 407-410
Author(s):  
Yin Fang Jiang ◽  
Xian Cong He ◽  
Yu Huang ◽  
Jian Wen Zhang ◽  
Zhi Fei Li
Keyword(s):  
Fatigue Life ◽  
Fatigue Properties ◽  
Hole Drilling ◽  
Mean Stress ◽  
Strengthening Effect ◽  
Laser Shock ◽  
Residual Stress Field ◽  
Laser Shock Processing ◽  
The Mean ◽  
Shock Processing

Based on the FEM code ABAQUS and MSC.Fatigue, the process of LSP before hole-drilling was adopted to study the residual stress field of aluminum alloy7050T7451 with Fastener Holes after Laser shock processing (LSP), and the fatigue life of the specimens by LSP was analyzed in this paper. The results indicate that multiple laser shock processing can improve the residual compressive stress and fatigue life to a certain degree, and with the increasing number of shot, the strengthening effect gradually decreases. The ratio of the fatigue life of specimens treated by LSP to the fatigue life of untreated specimens is gradually decreased as the mean stress σm increases, and when the σm is 67.3MPa, the fatigue life of specimens treated by LSP advances 719%, compared with that of untreated specimens.

Elastic properties modification in aluminum alloy induced by laser-shock processing

2001 ◽  
Vol 297 (1-2) ◽  
pp. 138-143 ◽  
Author(s):  
Y.K Zhang ◽  
X.R Zhang ◽  
X.D Wang ◽  
S.Y Zhang ◽  
C.Y Gao ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Elastic Properties ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

The microstructural mechanism for mechanical property of LY2 aluminum alloy after laser shock processing

2010 ◽  
Vol 31 (5) ◽  
pp. 2599-2603 ◽  
Author(s):  
Kai-yu Luo ◽  
Jin-zhong Lu ◽  
Ling-feng Zhang ◽  
Jun-wei Zhong ◽  
Hai-bing Guan ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Aluminum Alloy ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing ◽  
Microstructural Mechanism

Dislocation Configurations Induced by Laser Shock Processing of 2A02 Aluminum Alloy

2011 ◽  
Vol 31 (7) ◽  
pp. 0714002
Author(s):  
Luo Xinmin ◽  
Zhang Jingwen ◽  
Ma Hui ◽  
Zhang Yongkang ◽  
Chen Kangmin ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing
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