Research on the Theory of the Laser Shock Processing Technology

Abstract:

In this paper the laser shock processing technology (LSPT) is investigated theoretically. A one-dimensional theoretical model is presented to express analytically the transmission coefficient of the incident laser beam through four different layers, i.e., the air layer, the constrained layer, the plasma layer, and the absorbing coating. Based on this model, the key parameters of LSPT can be further optimized to obtain the maximum transmission coefficient and the best surface-hardening effect. This one-dimensional theoretical model presented can be further used in guiding the parameter optimization for this technology.

• Periodical: Applied Mechanics and Materials (Volume 610)
• Pages: 1021-1028
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.610.1021
• Online since: August 2014
• Authors: Jin Lan Lin, Jian Hong Fan
• Keywords: Laser Shock Processing Technology, Optimization, Surface-Hardening

References

[1] Z. Yongkang, Laser processing technology, Chemical Industry Press, Beijing, 2004, pp.259-260.

[2] H. Binjie, W. Gang, and L. Laisheng, Smm analysis of reflection, absorption, and transmission from nonuniform magnetized plasma slab, Transactions on plasma science, vol. 27, 1999, pp.1131-1136.

DOI: 10.1109/27.782293

[3] L. Berthe, R. Fabbro, and P. Peyre, Shock wave from a water-confined laser-generated plasma, Jornal of Applied Physics, vol. 82, 1997, pp.2826-2832.

DOI: 10.1063/1.366113

[4] N. Joachim, and V. Alfred, Single-shot spatially sesolved characterization of laser-induced shock waves in water, Applied Optics, vol. 37, 1998, pp.4092-4099.

DOI: 10.1364/ao.37.004092

[5] K. Peter, and H. Jan, Dynamics and energetics of the explosive vaporization of fog d, pp. roplets by a 10. 6-µm laser pulse, Applied Optics vol. 12, 1973, pp.772-775.

DOI: 10.1364/ao.12.000772

[6] Martí-López L, Ocaña R, and Porro JA, Morales M, Ocaña JL, Optical observation of shock waves and cavitation bubbles in high intensity laser-induced shock processes, A, vol. 48, 2009, pp.3671-3680.

DOI: 10.1364/ao.48.003671

[7] N. Joachim, and V. Alfred, Single-shot spatially repplied Opticssolved characterization of laser-induced shock waves in water, Applied Optics vol. 37, 1998, pp.4092-4099.

DOI: 10.1364/ao.37.004092

[8] C.W. Sun, Effect of rradiation, National Defense Industry Press, Beijing, (2002).

[9] Q. Zhao, S.Z. Liu, and H.H. Tong, Plasma Technology and Applications, Nationl Defense Industry Paress, Beijing, (2009).

[10] Z.W. Zhuang, N.C. Yuan, S. B Liu, and J.J. Mo, Plasma stealth technology, Science Press, Beijing, (1998).

[11] R.G. Yan, Electromagnetic field and wave, Higher Education Press, Beijing, (2007).

[12] R. Fabbro, and J. Fournier, Ballard petal, Journal of applied physics, vol. 68, 1990, p.755~784.