Influence of Laser Shock Processing on the Weld Line and Finite Element Simulation

Jie Zhang; Ai Hua Sun; Le Zhu; Xiang Gu

doi:10.4028/www.scientific.net/KEM.464.627

Paper Titles

The Effects of the Expander Lens on the Output of the High Energy Nd: Glass Solid-State Laser
p.609

2D CFD Analysis of Micro Arc-Groove on the Surface of Tribopairs
p.614

Microstructure Evolution of Pearlitic Lamella Impacts at Ultra-High Strain Rates
p.619

Mechanical Effects during Pulsed Laser and Metals Interaction in Neutral Solution
p.623

Influence of Laser Shock Processing on the Weld Line and Finite Element Simulation
p.627

Phases Transformation Analysis of ZrO₂ Ceramics after Laser Shock Processing
p.632

Nanoindentation and Friction/Wear Behaviors of a Magnetron Sputtered Cnx/Sic Films on Magnesium Alloy
p.637

The Analysis about Double-Wall Carbon Nanotubes Resonant with the Phenomenon of Energy Dissipation
p.642

Laser Cladding of Ni-Based Hardfacing Alloy Replacing Stellite06
p.647

HomeKey Engineering MaterialsKey Engineering Materials Vol. 464Influence of Laser Shock Processing on the Weld...

Influence of Laser Shock Processing on the Weld Line and Finite Element Simulation

Abstract:

Welding residual stress is one of the main factors that affect the strength and life of components. In order to explore the effect on residual stress of welding line by laser shock processing, finite element analysis software ANSYS is used to simulate the welding process, to calculate the distribution of welding residual stress field. On this basis, then AYSYS/LS-DYNA is used to simulate the laser shock processing on welding line. Simulation results show that residual stress distributions of weld region, heat-affected region and matrix by laser shock processing are clearly improved, and the tensile stress of weld region effectively reduce or eliminate. The simulation results and experimental results are generally consistent, it offer reasons for parameter optimization of welding and laser shock processing by finite element analysis software.

You might also be interested in these eBooks

Functional Manufacturing Technologies and Ceeusro II

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 464)

Pages:

627-631

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.464.627

Citation:

Cite this paper

Online since:

January 2011

Authors:

Jie Zhang, Ai Hua Sun, Le Zhu, Xiang Gu

Keywords:

Electro-Spark Overlaying, Laser Shock Processing (LSP)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R.J. Wang, X.O. Huang: Weld Vol. 10(2006), pp.19-23.

Google Scholar

[2] Y. Ueda, V. Hidekazu: Numerical calculation methods of welding distortion and residual stress (Sichuan University Press, China 2008).

Google Scholar

[3] Thorslund T, Kahlen F J, Kar A: Optics and Lasers in Engineering, Vol. 39(3) (2003), pp.51-71.

Google Scholar

[4] J.C. Yang, J.Z. Zhou, Y.K. Zhang: Journal of Jiangsu University (Natural Science), Vol. 23 (1) (2002), pp.1-4.

Google Scholar

[5] Y.K. Zhang: Laser shock processing to improve the fatigue performance of aerospace aluminum alloy. Nanjing: Nanjing University of Aeronautics and Astronautics (1995).

Google Scholar

[6] Y.X. Hu, Z.Q. Yao and J. Hu: China Laser Vol. 33(6) (2006), pp.846-851.

Google Scholar

[7] J.C. Sao, Y. Liu: Material Herald Vol. 21(9) (2007), pp.111-115.

Google Scholar

[8] A.L. Lu, Q.Y. Shi and H.Y. Zhao: Chinese Mechanical Engineering Vol. 12(2) (2001), pp.183-186.

Google Scholar

[9] J. Cheng, Y. Cheng: Journal of Tongji University Vol. 36(5) (2008), pp.640-645.

Google Scholar