Laser shock processing on (AISI 1040) steel surface

G. Gomez-Rosas; C. Rubio-González; J. L. Ocaña; C. Molpeceres; J. Porro; M. Morales; I. Raygadas-Torres; G. Ramírez-Ramírez; J. Solis

doi:10.1117/12.674620

10 February 2006 Laser shock processing on (AISI 1040) steel surface

G. Gomez-Rosas, C. Rubio-González, J. L. Ocaña, C. Molpeceres, J. Porro, M. Morales, I. Raygadas-Torres, G. Ramírez-Ramírez, J. Solis

Author Affiliations +

Proceedings Volume 6046, Fifth Symposium Optics in Industry; 604626 (2006) https://doi.org/10.1117/12.674620
Event: Fifth Symposium Optics in Industry, 2005, Santiago De Queretaro, Mexico

Abstract

Laser shock processing (LSP) has been proposed as a competitive alternative technology to classical treatments for improving fatigue and wear resistance of metals. We present a configuration and results in the LSP concept for metal surfaces treatments in underwater laser irradiation at 1064 nm. A convergent lens is used to deliver 2.5 J/cm² in a 8 ns laser FWHM pulse produced by a Q-switch Nd:YAG Laser. Experimental results using a pulse density of 5 000 pulses/cm² and spots of 0.8 mm in diameter in 1040 steel samples are presented. Compressive residual stress distribution as a function of depth is assessed by the hole drilling method. High level compressive residual stresses are produced using 1064 nm wavelength. This method can be applied for surface treatment of final metal products.

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G. Gomez-Rosas, C. Rubio-González, J. L. Ocaña, C. Molpeceres, J. Porro, M. Morales, I. Raygadas-Torres, G. Ramírez-Ramírez, and J. Solis "Laser shock processing on (AISI 1040) steel surface", Proc. SPIE 6046, Fifth Symposium Optics in Industry, 604626 (10 February 2006); https://doi.org/10.1117/12.674620

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