Residual stress field induced by shot peening based on random-shots for 7075 aluminum alloy

2012 ◽  
Vol 22 ◽  
pp. s261-s267 ◽  
Author(s):  
Xiang-fei SHENG ◽  
Qin-xiang XIA ◽  
Xiu-quan CHENG ◽  
Lie-shu LIN
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Stress Field ◽  
Shot Peening ◽  
7075 Aluminum Alloy ◽  
Residual Stress Field

scholarly journals Effect of Shot Peening on Redistribution of Residual Stress Field in Friction Stir Welding of 2219 Aluminum Alloy

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3169 ◽  
Author(s):  
Lin Nie ◽  
Yunxin Wu ◽  
Hai Gong ◽  
Dan Chen ◽  
Xudong Guo
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Stress Field ◽  
Shot Peening ◽  
Welding Residual Stress ◽  
Stress Fields ◽  
Residual Stress Field ◽  
Friction Stir ◽  
2219 Aluminum Alloy

Welding is one of the essential stages in the manufacturing process of mechanical structures. Friction stir welding structure of aluminum alloy has been used as a primary supporting member in aerospace equipment. However, friction stir welding inevitably generates residual stress that promotes the initiation and propagation of cracks, threatening the performance of the welded structure. Shot peening can effectively change the distribution of residual stress and improve the fatigue properties of materials. In this paper, friction stir welding and shot peening are performed on 2219 aluminum alloy plates. The residual stress fields induced by friction stir welding and shot peening are measured by using the X-ray diffraction method and incremental center hole drilling method, and the distribution characteristics of residual stress fields are analyzed. The effect of the pellet diameters and pellet materials used in shot peening on the redistribution of welding residual stress field are investigated. The pellet diameter used in the experiment is in the range of 0.6–1.2 mm, and the pellet material includes glass, steel, and corundum. This study provides guidance for the application of shot peening in friction stir welding structure of 2219 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.

Assessment of the Crack Compliance Method and the Introduction of Residual Stresses by Shot Peening Using the Finite Element Method

2009 ◽  
Vol 15 ◽  
pp. 109-114 ◽  
Author(s):  
G. Urriolagoitia-Sosa ◽  
E. Zaldivar-González ◽  
J.M. Sandoval Pineda ◽  
J. García-Lira
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Stress Field ◽  
Residual Stresses ◽  
Shot Peening ◽  
Working Life ◽  
The Finite Element Method ◽  
Residual Stress Field ◽  
Main Effect

The interest on the application of the shot peening process to arrest and/or delay crack growth is rising. The main effect of the shot peening technique is to introduce a residual stress field that increases the working life of mechanical components. In this paper, it is presented the numerical simulation (FEM) of the shot peening process and the effect of introducing a residual stress field. Besides, the consequence of changing the sizes of the impacting ball is analyzed. This work also used the Crack Compliance Method (CCM) for the determination of residual stresses in beams subjected to a numerical simulation of a shot peening process. The numerical results obtained provide a quantitative demonstration of the effect of shot peening on the introduction of residual stresses by using different sizes of impacting balls and assess the efficiency of the CCM.

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

Kugelstrahlsimulation mit neuartiger Elementarzelle – Bauteilauslegung bis Strahlparameter/Shot Peening Simulation with a Novel Unit Cell – Component Design to Peening Parameters – Part 1: Simulation Model and Residual Stress Field

Konstruktion ◽  
2019 ◽  
Vol 71 (07-08) ◽  
pp. 82-89
Author(s):  
Christoph Hermann Richter ◽  
Patrick Gerken ◽  
Michaela Zeißig ◽  
Gerd Telljohann
Keyword(s):  
Residual Stress ◽  
Stress Field ◽  
Simulation Model ◽  
Shot Peening ◽  
Unit Cell ◽  
Wird Eine ◽  
Residual Stress Field ◽  
Cell Component ◽  
Component Design

Inhalt: In diversen Branchen des Maschinenbaus wird Kugelstrahlen zur Steigerung der Bauteilfestigkeit eingesetzt. Die Auslegung der Verfestigung wird heute oft mit iterativen Versuchen vorgenommen. Im hier vorliegenden ersten Teil der Veröffentlichung, „Simulationsmodell und Eigenspannungsfeld“, wird eine wirtschaftliche Simulation auf Basis einer neuartigen Zellperiodizität vorgestellt. Diese erlaubt prozessrelevante Parameter vorherzusagen und resultierend auf die Eigenspannungsmessung zu verzichten. Ferner wird die in der Literatur nur selten behandelte Inhomogenität des Eigenspannungsfeldes näher untersucht. Im zweiten Teil der Veröffentlichung, „Anwendungen“, dienen im Schrifttum verfügbare Messdaten zu Almen-Proben der Validierung. Darüber hinaus wird der Nutzen des Kugelstrahlens am Beispiel der schwer zu beherrschenden Reibermüdung mit einer integrativen Simulation beleuchtet.

Residual Stress Field of a Single Edge Notch Specimen after Laser Shock Peening and Shot Peening Treatment

2018 ◽  
Vol 7 (4) ◽  
pp. 20170133
Author(s):  
Stefano Coratella ◽  
T. J. Spradlin ◽  
Kristina Langer ◽  
Michael A. Gharghouri ◽  
U. C. Heckenberger ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Field ◽  
Shot Peening ◽  
Laser Shock Peening ◽  
Laser Shock ◽  
Single Edge ◽  
Residual Stress Field ◽  
Single Edge Notch ◽  
Edge Notch ◽  
Shock Peening

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.

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